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Clarifying the concept of Product-Service
System
Article in Journal of Cleaner Production · June 2002
DOI: 10.1016/S0959-6526(01)00039-7
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www.cleanerproduction.net
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Clarifying the concept of product–service system
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O.K. Mont
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*
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The International Institute for Industrial Environmental Economics at Lund University, P.O. Box 196, Tegnersplatsen 4, SE-221 00 Lund,
Sweden
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Received 29 January 2001; accepted 20 June 2001
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Abstract
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A new trend of product–service systems (PSSs) that has the potential to minimise environmental impacts of both production and
consumption is emerging. This article attempts to build a theoretical framework for PSS and serves as a background for identifying
possible investment needs in studying them. There are three main uncertainties regarding the applicability and feasibility of PSSs:
the readiness of companies to adopt them, the readiness of consumers to accept them, and their environmental implications. The
main finding is that successful PSSs will require different societal infrastructure, human structures and organisational layouts in
order to function in a sustainable manner. 2001 Published by Elsevier Science Ltd.
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Keywords: Product–service systems; Sustainability; Functional economy
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1. Introduction
Sustainable production and consumption is an issue of
current international concern. Many different approaches
and concepts have been developed over the last decades
to address environmental problems, such as cleaner production, cleaner technologies, waste minimisation and
recycling approaches, eco-design and design for sustainability. However, a new strategy is called for in order
to stimulate the change in current production and consumption patterns.
Rising levels of consumption by the rich and doubling
of the world’s population over the next 40–50 years
would require a factor 4 increase in food production, a
factor 6 increase in energy use and at least a factor of
8 of growth income [1]. It is estimated that by the middle
of this century, resource productivity must have
improved by a factor of 10.1 This can be done by reducing the population, lowering the level of consumption or
changing technology. The first option does not seem to
be feasible in the short term. Decreasing consumption
levels does not appear to be a simple option either
because, on the one hand, people from industrialised
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* Tel: +46-46-222-0250; fax: +46-46-222-0230.
E-mail address: oksana.mont@iiiee.lu.se (O.K. Mont).
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This means reductions of 90% compared to current levels.
countries do not show any obvious willingness to minimise consumption and, on the other hand, there is a need
to increase consumption levels in developing countries
in order to provide basic amenities.
Recent thinking has focused on ‘dematerialising’ the
economy — reducing the material flows in production
and consumption; creating products and services that
provide consumers with the same level of performance,
but with an inherently lower environmental burden. Several authors have proposed the concept of product–services — providing utility to consumers through the use
of services rather than products — as a possible example
of a strategy for dematerialisation and a possible answer
to the sustainability challenge. However, so far, little
attention to this concept has been given at policy and
operational levels.
The goal of this article is to contribute to building a
theoretical background about the concept, and to stimulate debate about the sufficiency of existing efforts at
academic and company levels.
2. Functional economy
4
At the turn of the millennium we are witnessing an
escalation of service economies with society experiencing a transition from mass-production to flexible production. A service economy is defined as one in which
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more than half of the total labour force is employed by
the service sector [2]. Approximately 70% of all workers
in highly industrialised countries are employed in industries commonly thought of as services: communications,
transportation, health care, education, wholesale and
retail redistribution, and financial services. This new,
more service-oriented model of manufacturing growth
has key competitive factors such as the capability for
continuous innovation, improved design and quality and
customised goods, rather than the production of large
volumes of standardised products.
What are the drivers of such structural change in our
society? Some of the shifts in composition of output and
employment depend, of course, on demographic factors.
The environment itself has become a force for structural
change. The industrial revolution, which shaped the
development of the 20th century, worked by its own
rules, at odds with those of the natural world. Resources
were viewed as inexhaustible and the ecosystem as an
infinite ‘sink’ for wastes. As the troubling symptoms of
environmental decline have emerged, fundamental questions have been raised about the environmental profile
and sustainability of existing industries. However, services have generally escaped this critical concern, being
considered as less environmentally harmful.
Services have an increased share within the manufacturing industry [3]. The traditional boundary between
manufacturing and services is becoming increasingly
blurred. Of the employees that are working in traditional
manufacturing industries, 65–75% perform service tasks
ranging from production-related activities like research,
logistics (transportation), planning, and maintenance, as
well as product and process design, to the all-supportive
services existing at any company (e.g. accounting,
financing, law services and personnel functions).
The role of services in providing value is ever more
important. Not long ago, most of a product’s added value
came from the production processes that transformed
raw materials into products. Now, added value is created
by technological improvements, intellectual property,
product image and brand names, aesthetic design and
styling; all non-material aspects of products. These help
producers to differentiate and diversify their products to
better respond to customers’ demands — the so-called
move from mass production to customised production
or mass customisation. Therefore, there is an increased
interest among manufacturers in adding value through
the provision of services that extend the spectrum of
their products. Thus ‘services’ extend into every part of
the value chain.
The concept of a service society as a means of achieving sustainable development was proposed by Stahel [4].
He advocated the need to distinguish between industrial
economy and service-oriented economy. Industrial economy places the central value on the exchange of the products that are consumed. The service economy, on the
contrary, recognises the value of utilisation, a performance driven orientation where the consumer pays for utilisation of the product. Therefore, the service economy
is often referred to as functional economy, in which both
product and technology are mere modes of providing
function. The idea of functional economy rests upon the
notion that function is the key to customers’ satisfaction,
not products per se. In a functional economy, consumers
are buying mobility instead of cars, cleaning services
instead of washing powders and movies instead of videocassettes [5], [6], [7]. A functional economy has the
potential to be more environmentally benign because it
addresses current levels of material/resource consumption, seeking options that may provide function/service
to consumers without minimising their level of welfare.
But realisation of this potential is not automatic.
In a functional economy, the role of the manufacturer
is shifted towards provision of services [8]. Stahel notes
that a functional economy “optimises the use (or
function) of goods and services and thus, the management of existing wealth (goods, knowledge, and nature).
The economic objective of the functional economy is to
create the highest possible use value for the longest possible time while consuming as few material resources and
energy as possible” [9]. In the functional economy,
material products are treated as capital assets rather than
as consumables, thus increasing value-added services to
prolong the product’s life and minimise loss of
resources.
Present economies are mostly service economies saturated with products reinforced by services and some
examples of alternative systems of product use. Empirical studies have indicated that even in industrialised
countries with a high level of consumption, the penetration of new products and services is of more complementary nature rather than substitutional [10].
3. What is a product–service system?
The term “product–service systems” (PSSs) has been
defined as “a marketable set of products and services
capable of jointly fulfilling a user’s need. The
product/service ratio in this set can vary, either in terms
of function fulfilment or economic value” [11]. Thus,
more traditional material intensive ways of product utilisation are replaced by the possibility to fulfil consumers’ needs through the provision of more dematerialised services, which are also often associated with
changes in the ownership structure. Various approaches
and trends towards the development of PSS can be outlined:
앫 the sale of the use of the product instead of the product itself [12];
앫 the change to a ‘leasing society’ [13];
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앫 the substitution of goods by means of service
machines [14];
앫 a repair-society instead of a throw-away society [15];
앫 the change in consumer attitudes from sales to service orientation.
Jansen and Vergragt have been working on the concept
of sustainable product systems that crosses company
boundaries and includes all stakeholders in the process
[16]. Manzini proposes the idea of strategic design as a
new approach for companies to engage in an increasingly ‘turbulent’ market. Strategic design focuses the
design process on an integrated body of products, services and communications, as a model for companies to
address changes in technology and social and consumer
attitudes [17].2
The aforementioned efforts obviously provide only
parts of the solution. Each of these approaches is a separate element of a PSS, with its own strong and weak sides
and limitations and possibilities to minimise environmental impact. However, when one is to integrate them
into a system, sub-optimisation might occur and overall
environmental impact might not necessarily be reduced.
Therefore, there is a need for a PSS, where the main
focus on system solution is important. Understanding the
difference between service and product is not relevant
from an environmental point of view, since both generate environmental impacts. The challenge with the new
approach lies in developing system solutions, where bits
and pieces fit together, integrated into a system of people
satisfaction. Such system-based solutions should facilitate the shift from separate systems of producing and
consuming to a system, in which products, services, supporting infrastructure, and necessary networks are
designed so that to provide a certain quality of life to
consumers and, at the same time, minimise environmental impacts of the system.
Thus, a PSS should be defined as a system of products, services, supporting networks and infrastructure
that is designed to be: competitive, satisfy customer
needs and have a lower environmental impact than traditional business models.
For consumers, PSSs mean a shift from buying products to buying services and system solutions that have
a potential to minimise the environmental impacts of
consumer needs and wants. This requires a higher level
of customer involvement and education by producers.
For producers and service providers, PSSs mean a
higher degree of responsibility for the product’s full life
cycle, the early involvement of consumers in the design
of the PSS, and design of the closed-loop system.
For both consumers and producers, PSSs might
sometimes involve a change in property rights. In general, PSSs are likely to give more attention to the use
phase of the product’s life cycle (consumer stage), than
current product systems do.
A paramount goal of product–service systems should
be to minimise the environmental impact of consumption by:
앫 closing material cycles;
앫 reducing consumption through alternative scenarios
of product use;
앫 increasing overall resource productivity and dematerialisation of PSSs;
앫 providing system solutions seeking the perfection in
integrating system elements along with improving
resource and functional efficiency of each element.
The concept of a PSS in this interpretation is still theoretical. Examples of some PSS elements can be found in
some companies, mainly driven by business and economic considerations, and therefore, environmental potential of such PSS elements has not been yet evaluated.
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4. Why a product–service system?
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4.1. Benefits
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The PSS concept has the potential to bring about such
changes in production and consumption patterns that
might accelerate the shift towards more sustainable practices and societies. According to some authors, the concept might be promising for commercial companies,
governments, and customers [18].
4.1.1. For companies
Understanding PSSs provides the opportunity to see
strategic new market opportunities, market trends and
developments and potentially to stay competitive as patterns of production and consumption are transformed by
environmental limits. The concept of a PSS facilitates
innovation at a more than incremental level and has the
potential to bring financial benefits.
Some companies are employing elements of PSSs as
a natural extension of their existing offers to customers.
Others see it as a survival strategy where the application
of a PSS is seen as the centre of a new business plan.
Usually such companies are forerunners and see the
opportunity of being first on the market as a basis for
survival.
There are different benefits to developing a PSS for
manufacturing and service companies.
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See also the development of this idea in the handbook of the Masters
of
Strategic
Design,
Politechnico
di
Milano
(www.mip.polimi.it/mds).
For manufacturing companies a service component
adds/allows:
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앫 To attach additional value to a product, for example,
financial schemes or refurbishing or upgrading.
앫 To base a growth strategy on innovation in a
mature industry.
앫 To improve relationships with consumers because of
increased contact and flow of information about consumers’ preferences.
앫 To improve the total value for the customer because
of increased servicing and service components, which
include activities and schemes that make the existing
product last longer, extend its function (upgrading and
refurbishment), and make the product and its
materials useful after finishing its life cycle (recycling
and reuse of parts or entire product).
앫 To anticipate the implications of future take-back
legislation, and might have the potential to turn them
into a competitive advantage.
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For service companies, product components:
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앫 Extend and diversify the service.
앫 Safeguard market share by bringing the service
component into the offer that is not so easy to copy.
앫 Facilitate communicating product–service information, because it is easier to convey information
about more tangible products than about intangible
services [19].
앫 Safeguard a certain level of quality that is difficult to
change (product quality).
4.1.2. For government and society
Understanding PSSs can therefore, help to formulate
policies that promote sustainable patterns of consumption and sustainable lifestyles. PSSs have the potential
to offer a new way of understanding and influencing
stakeholder relationships and viewing product networks,
which may facilitate development of more efficient policies.
At the same time, it is expected that the promotion of
added services or substitutes of products and alternative
schemes of product–service use can assist in the creation
of new jobs. The functional economy might be more labour-intensive than an economy based on mass production and throwaway patterns of consumption. More
jobs per unit of material product might be created
because of such labour-intensive services as take back
systems, repair, refurbishment, or disassembly. With
time, however, these services might become large-scale
operations that will require automatisation, and which
may decrease employment.
4.1.3. For consumers
Consumers benefit from a PSS because they receive
greater diversity of choices in the market; maintenance
and repair services; various payment schemes; and the
prospect of different schemes of product use that suit
them best in terms of ownership responsibilities. Consumers get added value through more customised offers
of a higher quality (from the product/service per se and
the delivery/provision). The service component, being
flexible by nature, induces new combinations of products
and services, better able to respond to changing needs
and conditions. Consumers may be releaved from the
responsibility for a product that stays under ownership
of a producer for its entire life span. Through PSSs, consumers may more easily learn about environmental features of products and how they can contribute to minimising the environmental impacts of consumption.
4.1.4. For the environment
A PSS has the potential to decrease the total amount
of products by introducing alternative scenarios of product use, for example, sharing/renting/leasing schemes
to consumers, however, not affecting design of the products. With PSS, producers become more responsible for
their product–services in case material cycles are closed.
Producers are encouraged to take back their products,
upgrade and refurbish them and use them again. In the
end, less waste is incinerated or landfilled.
The PSS approach changes the price cost systems of
the present economy because “the costs of production
are only a very small part of the costs involved in making a product available to the customer” [20]; consumers
do not pay for material goods but for intangible services.
This can amplify the technical development of dematerialisation, which is already an on-going process [21].
4.2. Drivers
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The drivers for the development of PSS have largely
been canvassed in previous sections. PSSs more appropriately respond to the demands of today than existing
systems of mass production. This is an evolution of the
economic transition away from standardised and mass
production towards flexibility, mass-customisation and
markets driven by quality and added value rather than
cost. Core competencies, rather than physical assets,
increasingly define leadership of companies on the market.
Improved competitiveness through improved environmental performance is also named among the drivers of
the shift from selling products to provision of services.
Others include legislative threats, particularly relating to
extended producer responsibilities (EPR), and consumers behaviour/demands [22].
There are certain conditions under which development
and application of PSS might be profitable [23]. First of
all, PSS will be profitable if the costs of use and disposal
phases (and the collection of end-of-life products) are
internalised. The development of a proper PSS with an
efficient take back system could stimulate consumers to
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return products. The second condition is if the product,
at the disposal stage, has a high market value. The third
condition of a profitable PSS is when an alternative scenario of product use generates additional profit (or reduces
a current cost). For example, the legislation requires that
a producer of a chemical takes care of her/his chemicals
after they are sold. In this case, product ‘maintenance’,
becomes an additional cost. If the producer, instead of
selling the chemical, provides its function, it becomes a
profit generator and a stimulus to minimise the consumption of the chemical, which is beneficial for the consumer
as well. Thus, it appears that one of the most important
external drivers for a company is supplier development.
with the goal of prolonging product life cycle, comprising maintenance and upgrading.
5. Revalorisation services include offers that aim at closing the product material cycle by taking products
back, secondary utilisation of usable parts in new products and recycling of materials if reuse is not feasible.
Thus, PSSs consist of a combination of eco-designed
products, reinforced by designed services at different
stages of a product’s life cycle, and comprising different
concepts of the product use (both use and result oriented,
depending on the logistics and ultimately environmental
profile of the PSS), closely involving final consumers
and actors in the chain and beyond.
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5. Product–service system elements
The study of literature on product–services and ecoefficient services, and communication with experts and
researchers working with PSS revealed a clear lack of
common understanding of PSS elements. The following
figure provides a list of the main PSS elements, which
may provide a common term of reference for studying
and designing PSSs (Fig. 1).
1. A PSS may consist of products, services, or various
combinations of them. Products substituted by services are largely an ideal category without many practical or consistent examples, because any service,
even nonmaterial per se, requires material or energy
inputs.
2. Services, at the point of sale, comprise personal
assistance in shops, financial schemes provided to
customers, explanations about product use and, of
course, marketing.
3. Different concepts of product use consist of two categories: use oriented, where product utility is
extracted by the user, and result oriented, where product utility is extracted by the utility provider for
the user.
4. Maintenance services include servicing of products
6. Characteristics of product–service systems
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6.1. The role of producers
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The successful development of a PSS requires that
manufacturers and service providers extend their
involvement and responsibility to phases in the life
cycle, which are usually outside the traditional buyer–
seller relationship, such as take back, recovery, reuse and
refurbishment and remanufacturing. Usual responsibilities for products are extended through the additional
or deepened responsibility for service, including the
responsibility for proper organisation of take back
arrangements and systems for reuse, remanufacturing
and recycling and for educating consumers about
efficient product use. Reduced material flow also
requires a stronger co-operation with suppliers. Information and economic benefits from the service provision
stage (consumer stage) can be easily transferred to the
manufacturing, development/design stage, thus the entire
system becomes more responsive to changing market
parameters and is probably inherently more likely to
stimulate innovation.
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Fig. 1.
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Classification of a product–service system.
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6.2. The role of consumers
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The relationship between the company and a customer
plays a key role if the PSSs are to be designed and run
effectively. Some proactive companies have started
working more closely with their customers, who then
have depended on them for many types of information,
including environmental. In turn, these companies often
have early insights into consumer tastes, preferences and
regional buying habits. Thus, such companies play a
critical role in both satisfying and creating consumer
preferences for goods and services, including their
environmental dimensions.
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6.3. Organisational basis for product–service systems
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Companies that are pursuing the concept of PSSs will
need to change traditional structures, regardless of
whether they are manufacturing or service organisations.
Close co-operation with consumers extends the role of
the marketing division. Information management will
play an increasing role in improving organisational
efficiency and customer communication. As product–
service development occurs during interaction with the
consumer, the structure of decision making is likely to
be more decentralised.
The extended involvement of the organisation with
other companies leads to intra-organisational changes
that include performance indicators and the demand for
human capital. These intra-organisational changes modify the relationships between the business functions
within the company. Inter-organisational changes, such
as a closer interaction with other actors in the product–
service chain and outsourcing, may create the demand
for intermediates.
New networks may need to be established in order to
develop PSSs. These can be research networks that can
investigate market changes and consumer preferences;
information-sharing networks developed to share information that is relevant for entire product chains or the
industry sector; or regional or sectoral networks that
bring together industries located in the same region or
representing the same sector to exchange the best practices, set levels of performance or exchange by-products
or wastes.
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6.4. Design particularities
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There are few examples of design projects/attempts
where an entire PSS is re-designed. The design methodology of the entire PSS will probably differ from the
product design methodology due to a following number
of reasons:
앫 Designing a PSS requires close integration of all
actors within the life cycle of a product–service. Tight
앫
앫
앫
앫
integration, especially between the service and manufacturing organisations, is more likely to permit the
clear ‘transmission’ of the economic incentives,
allowing service activities to drive manufacturing or
design changes.
Schemes for taking back products at the end of their
life, as well as all necessary arrangements with business partners, should be focused on ensuring
maximum closing of the product flow and reduction
of transport distances.
Alternative scenarios of product use could be analysed and the range of these scenarios may be
presented to the consumer, providing information on
economic and environmental features of the PSS.
Marketing strategies could be developed in ways that
teach and promote an environmentally and socially
more acceptable way of function fulfilment. They
could include communication campaigns during
which the producer would provide consumers with
information and presentations about utilising her/his
products most efficiently.
Alternative scenarios of servicing the products could
also be given at the point of sale to ensure the proper
product exploitation during the use phase.
6.5. Environmental profile
Services are not necessarily less environmentally
problematic than manufacturing industries, but in an
economy in which they dominate and serve as some of
the most dynamic drivers of change, it is important to
examine them directly in search for opportunities to halt
environmental degradation and to improve their environmental quality. PSSs are focused on addressing the use
phase to reduce the total environmental burden of consumption. However, there is a need to consider carefully
the impact of other phases such as production and postproduction activities.
What are the possibilities to reduce environmental
burdens with a PSS? The following can be deduced from
the discussion so far:
앫 The environmental impacts of the use phase come
from the efficiency of each unit of function delivered
and the total amount of a delivered service. The
design of PSSs can provide an incentive to manufacturers to design products that are more efficient in
their use phase only when the producer will be paying
for the environmental effects and resource consumption during this phase, that is, when the conditions
internalise use-related environmental costs.
앫 A number of ecological advantages can arise from the
sale of services. For instance, it may encourage the
producers’ interest in the reuse and increase of the
recyclability rate of products. The services could
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include new, used and refurbished products. Ideally,
this could lead to completely closed product cycles
under the responsibility of the manufacturers.
앫 The substitution of energy and materials with efficient
services may influence overall resource consumption.
Increasing the intensity of use, if products are shared
or used jointly, may potentially minimise the total
number of products and the capacity for use can be
more fully realised resulting in greater resource
efficiency and less impact on the environment.
앫 If the operation of the product–service is a cost for
the company that has internalised it, the producer
might be interested in providing maintenance that
helps to extend product life and thus reduce the quantity of the product required for delivering the service
that is less product per unit of services and thus less
environmental burden.
앫
In order to assess the environmental performance of
PSSs, there is a need to develop criteria that could reflect
the life span of a product, efficiency of resource consumption, closed cycle efficiency and potential for
improvement.
7. Barriers for product–service systems
The concept of PSSs is still being developed, but has
already been suggested as a possible scenario of moving
towards more sustainable production and consumption
systems. It, therefore, is important to examine all conceivable barriers to its development, application and continuous betterment.
앫 It may be difficult to develop scenarios of alternative
product use because they often include elements that
are situated between production and consumption
(sales) and several stakeholders may need to be
involved in designing both the product and the service system.
앫 A social system or infrastructure that would accept or
support the suggested product–service scenario
should be found. If such a system does not exist, a
completely new infrastructure or network might need
to be designed that can support the environmentally
benign performance of the new product.
앫 PSSs, require from their producer, close co-operation
with suppliers and service producers or final consumers. While relationships with suppliers are
addressed by ISO 14000-series standards and
environmentally conscious purchasing practices,
downstream practices are addressed by EPR and Product Stewardship concepts. Integrated Chain Management specifically addresses the issue of involving several actors in order to improve the environmental
performance of products. However, problems associa-
앫
앫
앫
ted with ICM are also going to be relevant for PSSs
due to similar value chain basis, that is extended in
PSSs into a value network. These problems include
trade-offs between co-operation and internal environmental management; the problem of choosing wrong
actors who do not have the power to change or influence events; information sharing and transparency
and barriers from material flows crossing borders and
a variety of regulatory frameworks in different countries.
Although, ideally, ownerless consumption offers
many advantages and hopes, it has its own problems.
For instance, studies conducted reveal that the multiple use does not automatically lead to less impact
on the environment [24]. The environmental impact
depends, to a large extent, on the circumstances,
schemes and conditions of use. Leasing, for example,
can promote use of products which otherwise would
not be affordable for customers. Without the option
of leasing, the purchase could have to be postponed
to a later date. On the other hand, leasing can facilitate
the return of old appliances since the duration of use
is monitored and they are returned after the lease has
run out, if the purchase option is not executed. This
could strengthen the manufacturers’ interest in their
own products and could improve the economic conditions for a closed cycle economy.
Changing systems and sources of gaining profit could
deter producers from employing this concept. Where
point-of-sale becomes a point-of-service that operates
over an extended period of time, traditional incentives
can fail to reflect the real drivers of profit for the firm.
A particular problem is the changeover from shortterm profit realisation at the point-of-sale to mediumand long-term amortisation periods at the point-ofservice. Moreover, another characteristic of PSSs that
affects the usual ways of gaining profits is the possibility of raising revenue and getting profit not through
sales but through efficiency provision (energy services; Demand Side Management and Chemical Management Services).
The resistance of companies to extend involvement
with a product beyond point-of-sale and historical
practice has been identified as a major barrier to
increased manufacturer responsibility for environmental impacts of products [25]. The extended
involvement leads to intra-organisational and interorganisational changes, such as closer interaction with
other actors in the product–service chain. This happens partially due to inertia and fear of innovations.
The reorientation of companies towards PSSs requires
a fundamental shift in corporate culture and market
engagement, which, in turn, requires time and
resources to facilitate the shift. Changing the orientation of the company from product to service sale
means also changing the traditional marketing con-
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cepts. This is often met with psychological barriers
in companies.
It is quite difficult to trace the shift in service or
manufacturing industries because of differences in
how services are reported in national and international
statistics.3 For example, in manufacturing companies,
human resources, canteens and medical care centres
for workers may be included as services or as manufacturing departments.
Adding environmental considerations to the product
development cycle is often seen as lengthening the
time to market. This is even more so if the entire PSS
should be designed with criteria of environmental
efficiency in mind.
Consumers might not be very enthusiastic about ownerless consumption. Numerous examples of practical
applications of product–service ideas in the commercial sector did not facilitate operationalisation in the
private market [9]. The successful models such as car
sharing are still limited to small market niches.
Customers’ demands and purchasing behaviour
appears to be potentially more complicated than
expected. The assumptions that the customer is more
interested in use rather than the ownership [26] or is
looking for the use rather than the product itself does
not represent current reality.
relationships with stakeholders. Few studies have
evaluated the profitability of PSSs for companies,
although present economic difficulties within some
companies serve as a counter-argument to the outcome of the evaluation.
앫 Readiness to accept the PSSs by consumers. Little
research has been conducted on evaluating the competitiveness of PSSs and their profitability for consumers.
앫 Environmental characteristics of PSSs are also not yet
studied. A number of studies evaluated the environmental features of particular stages and activities,
such as remanufacturing and take back as favourable.
On the other hand, other studies showed that environmental characteristics of, for example, eco-services
should be accounted for carefully, because they are
not always preferable in comparison to products.
The results of the study provide a background for setting
future research directions. There is a need to further
explore the design side of PSSs and to develop a methodological basis for their development, practical
implementation and evaluation of economic, environmental and social consequences.
References
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8. Conclusions
An important conclusion is that there are many
examples that illustrate parts of the solution (eco-design,
optimisation of distribution, product customisation,
added services, take-back systems, remanufacturing, and
recycling), but there are few examples of complete PSSs
that are being designed on a life cycle basis in companies. The companies often lack a system approach.
Another reason for such a limited application of PSSs
in companies is the fact that the PSS is a new area and
even at the academic level PSSs have not yet been studied and shaped for practical applications. Therefore, a
number of uncertainties concerning the characteristics of
the PSSs can be highlighted. These uncertainties can be
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production and marketing strategies, as well as their
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This problem was recognised and discussed at the World Service
Congress’99 with Ms Gunnel Mohme, the Head of the Service Business Unit at Svenska Industriförbundet.
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