urban economy through providing livelihoods for
low-income groups.
Along with the development of the urban
planning system especially in developing countries,
the real setting of the HBE needs to be included,
because it provides a local service facility. Kellett
(2000a) emphasised that HBEs are not only for
income generation, but also have a role as a local
service facility within a neighbourhood. The role of
HBEs as local service facilities suggests that HBEs
need to be supported and accommodated in the urban
plan.
2.1.4. Housing Policy Perspective
In perspective of housing policy, the benefits of HBEs
go beyond income generation and employment and
the consolidation of housing. They can also
contribute to upgrading and rehabilitating slums.
Therefore, there are at least three benefits that can be
considered in housing policy, as follows: first, HBE
can be an asset in improving living standards; second,
by improving living standards, people in low income
groups can also gradually improve housing
conditions in a way that has been referred to as
housing consolidation; and third, their subsequent
effects are able to improve the wider environment,
such as through settlement upgrading and
rehabilitation.
2.1.5. Environmental Effects Perspective
Some researchers argue that the informal sector,
including HBEs, is assumed to be a problem for the
environment. In fact, the domestic activities of the
household such as cooking, sweeping, vacuum
cleaning, painting, and redecorating can cause the
release and spread of indoor pollutants at home.
Those impacts will be worse if the household is
occupied in motor servicing, small restaurant, or craft
production. However, Perera and Amin (1996) and
Tipple (2005a: 296) (Tipple, 1999) state that the
negative impacts (pollution) on the environment of
informal sector activities, including HBEs, are
minimal.
2.1.6. Spatial Implication
The spatial implications of HBEs are related to the
configuration of space, spatial organization,
territoriality, and boundaries. Bishop and Kellett state
that: the line and boundaries between reproductive
and productive activities are managed through a
complex, culturally-embedded mechanism in which
individuals, households and groups are continuously
negotiating and re-negotiating the relations and
boundaries between themselves (2000: 54).
The boundaries of the area for business and
domestic use are largely determined by culture.
According to Kent (1991), spatial boundaries, both
conceptual and physical, are continuously changed
and varied, differing from one culture to the other.
2.2 Adaptation Strategy
In numerous fields of social science, adaptation is
considered as a response to risks relating to the
interaction with environmental change, particularly
changes in the physical environment such as in
dwellings, urban areas, the state, or the world.
Humans basically face the same adaptive challenges
as all organisms, but humans are more varied because
of different cultural influences. Human adaptation
depends on cultural adaptation.
The descriptions of coping strategies so far have
placed the emphasis on general applications, while
Berry (1980) proposes a model with three basic
elements of ecology, culture, and behaviour. Bearing
in mind harmonious coexistence between the three
elements, Berry (1980) formulates three adaptation
strategies for coping with changing environmental
conditions: adjustment, reaction, or withdrawal.
In the context of HBE, Tipple and Kellett (2003)
have identified two categories of adaptation strategies
which are sharing of space and extending of space
based on their study in developing countries. In
additional, Marsoyo (2012) formulate three
adaptation strategies undertaken by households in
relation to ‘constructing spatial capital’ in the case of
HBE, that is (a) the sharing of space, (b) the extending
of space, and (c) the shifting of space (Figure 2).
Figure 2: The Concept of Adaptation Strategy on
HBE (Marsoyo, 2012)
Furthermore, these three categories of space use
may be grouped into two basic patterns, namely:
intensive use of space and extensive use of space.
This grouping gives more detail about the use of
space based on the physical aspects of the space.
Thus, the sharing and shifting of space take place