structural burden hypothesis proposed by Baumol
(1967).
The variable of total investment in the previous
period and the variable of total investment change are
positive values significantly. These means that in-
vestment/capital deepening in short and long run term
have a significant positive impact on labor
productivity growth in the industrial sector. This
results are in line with Peneder (2003).
The variable of average number of years in
education, as a proxy of human capital, is positive
significantly. That is, the workers with higher
education will increase the growth of labor
productivity in the industrial sector. The results of this
study are in line with Fagerberg (2000), Jorgenson
and Stiroh (2001), Peneder (2003), and Paus (2004).
The variable of infrastructure, with proxy of
provincial road length, is negative significantly at α =
10%. This can happen because, based on existing da-
ta, road conditions in each province are different and
still inadequate. This condition causes complicated
congestion and distribution process, thus less sup-
porting economic activity, among others, causing the
increase of transportation/distribution cost which can
reduce net result of output value. In addition, based
on data from The Global Competitiveness Report
2016-2017 (The World Economic Forum, 2016),
Indonesia’s infrastructure performance is still
relatively low. Of the 138 countries studied,
Indonesia is ranked 80th for the overall infrastructure
aspect, while in terms of road quality, Indonesia is
ranked 75th.
The variable of inflation rate. As a proxy of
macroeconomic stability, is positive significantly.
This means, an increase in inflation rate will increase
the labor productivity growth. This result is different
from some existing studies that inflation has a
negative effect on economic performance (Jaret and
Selody, 1982; Clark, 1982; Hondroyiannis and Pa-
papetrou, 1997; Bitros and Heat, 2001; Tsionas,
2003a; Christopoulos and Tsionas, 2005). Neverthe-
less, Mankiw (2007) states that in terms of supply
side, inflation reflects an increase in aggregate
demand. It will encourage the company to increase its
production capacity to make a profit, as shown in the
dynamics of the aggregate supply curve, where there
is a positive relationship between the price and the
quantity of output. Indeed, to some extent, with-in the
relatively low level of inflation (less than 10%), it is
needed in order to encourage the supply side
development.
The variable of wage is insignificant positive
value. The wage rate indicator used in this study is
provincial minimum wage. The insignificant impact
of wage because the provincial minimum wage is
made as a reference for employers to determine
wages for their workers, so it is likely that many
employers who pay less than the provincial minimum
wage. The International Labor Organization (2015)
states that while it is the right of workers to receive
remuneration equal to the minimum wage, high levels
of vulnerability and informality in the labor market
and limited labor inspection capacity causing one-
third of workers receive wages less than the
provincial mini-mum wage. According to Mankiw
(2007), wage measurement should be based on total
compensation covering wages in cash and intangible
compensation (fringe benefit). In situations of
intangible compensation, such as pension funds and
health insurance being a major part of compensation,
wages in cash are generally not in line with
productivity.
4 CONCLUSIONS
The results of this study indicate that structural
changes in Indonesia that lead to the increasing role
of industrial sector in the formation of national out-
put is not necessarily able to increase labor
productivity in the respected sector. The structural
changes that occur tend to be structural burden, which
unfavourable for the growth of labor productivity of
industrial sector.
The results of this study imply that structural
changes occurring along with the economic growth
should be supported by various other elements. They
are relevant government policies as efforts to improve
the quality of human capital and to provide better
infrastructure through an adequate development
budget allocation, maintaining the stability of the
macro-economy through appropriate controlling of
inflation rate Hence, it may create conducive
conditions to encourage of capital accumulation
through various investment activities.
REFERENCES
Asian Productivity Organization. 2014. Productivity Data
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Central Bureau of Statistics. 2013. Statistik Indonesia.
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Baumol, William J. 1967. Macroeconomics of Unbalanced
Growth: The Anatomy of Urban Crisis. The American
Economic Review, (Vol. 57, No. 3), (Jun, 1967): 415-
426.
Bitros, C. C. and Panas, E. E. 2001. Is there an inflation
productivity trade-off? Some evidence from the
manufacturing sector in Greece. Applied Economics,
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