function. However, theoretically, there is no
nomenclature difference between the terms region,
region and region. In general all can be termed
territory. Budiharsono (2005) divides the area into 4
types, are homogeneous territory, nodal area,
administrative area, and planning area. Regional
development is sectoral development in a region
with the aim of not only spurring and growing the
region (rural), but also the surrounding area (urban).
Furthermore Riyadi (2002), said the development of
the region is an effort to spur socio-economic
development, reduce the gap between regions, and
maintain environmental sustainability in a region.
Hadjisaroso (1994). regional development is an act
of developing the territory or build areas or regions
in order to improve the welfare of the people.
Tarigan (2004), regional development can be
measured from several parameters, among others,
the increase of public income, increase of
employment, income distribution.
2.3 Rural - Urban Linkages
Hirshman (1958) was the first economist to operate
the concept of linkage that describes the relationship
between the linkage with economic development.
Investment plays a dominant role in economic
development as a capacity creator, income
stimulator, and foundation layers to increase
investment. True to that opinion, Simanjorang (2010,
167) said, in the framework of regional development,
investment is one variable that is very decisive and
can encourage economic growth of a region.
While Markusen in Kuncoro (2002, 24) states
that agglomeration is a "non-volatile" site due to
external savings. Agglomeration is a concentration
of spatial economic and population activity that
arises from the savings generated by adjacent
locations. The Polar Theory of Growth by Perroux
(1955) in Arsyad (1999) and became the basis of
regional industrial policy development strategies that
are widely applied in various countries today. The
essence of this theory is: In the process of
development will arise superior industry which is the
main driving industry in the development of an area.
Centralization of industry in an area will accelerate
economic growth. The economy is a combination of
a relatively active industrial system with a relatively
passive industry that is dependent on industry-
leading industries or growth centers. Furthermore,
Adisasmita (2005), the growth process is consistent
with the economic space theory, in which the driving
industry is considered a starting point and an
essential element for subsequent development.
The economic structure of a country shifts
from agriculture/mining to non-primary sectors,
especially industries. Chenery (1975), says that
when percapita income is still low, most of the
income comes from the agricultural sector (primary),
as income increases the contribution of the
agricultural sector decreases. This is indicated by the
declining agricultural curve in line with rising per
capita income. In contrast, the contribution of the
industrial (secondary) and tertiary (or tertiary)
sectors increased in line with the increase in per
capita income.
Sihaloho (2013), the establishment of SEZ in
some areas is expected to bring benefits in terms of
increased investment, employment, foreign
exchange earnings, competitive advantages of export
products, increasing the utilization of local
resources, services and capital for increasing
exports, and encouraging the improvement of the
quality of human resources through the transfer of
technology . These objectives, in line with the
government's vision to improve the economy and
equity nationally and create strong economic
fundamentals, both macro and micro, even
nationally and regionally.
2.4 Backward and Forward Linkages
Soekartawi (1995), agroindustry is part of
agribusiness activities, where agroindustry is the
processing activities of agricultural commodities. If
agriculture is defined as a business that produces
agricultural commodities at the primary level, then
its relation to industry can be backward linkage or
forward linkage. The integration of economic
development will be realized through the inter-
sectoral economic linkage. Syafrizal (2015), if the
inter-sectoral economic linkage is high enough, this
means that development linkages will also be good
enough. Therefore, to realize integrated
development, priority is given to sectors with high
inter-sectoral and vice versa. Any change in the final
demand of the sector will result in a change in the
output of that sector and will also result in changes
in demand and output in other sectors or to all
sectors in the economy. Backward circumference or
pull factor because it is attractive to the sectors in
the upstream to grow. Forward linkage is
encouraging the growth of downstream sectors due
to increased inputs provided by the upstream sector.
So its nature is upstream encouragement in the
future. This means changes in all downstream
sectors that make upstream a sector to flourish
(Tarigan, 2004: 103-107).