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Infrastructure investments can be used as instruments for long-term economic policies. Furthermore, the need to improve transport infrastructure, which counts as an infrastructure investment, is increasing day by day. This is due to the advantages that transport infrastructure provides for communications and economic growth such as time saving and ease of access. When looking at the transport infrastructure in those countries that lead world trade it can be seen that their highway networks are highly developed and that highway networks can be the determinant of economic development. Highways make up the bulk of the investments made in transport infrastructure in Turkey. In this study the long-term relationship between transport infrastructure and economic growth in Turkey based on the length of highways is examined using the Cobb-Douglas production function. Using the Johansen co-integration test based on a VAR analysis performed using annual data from 1988-2015 it was found out that the long-term changes in the transport infrastructure in Turkey have had a positive and significant effect on economic growth. Keywords: Infrastructure Investment, Economic Growth, Transport, VAR Analysis, Johansen Co-integration Giriş [ABSTRACT FROM AUTHOR]

The aim of this paper is to investigate the relations between export and growth for Turkey by using 1987-2007 monthly data. In other words, export-led growth hypothesis is being tested for the period of eighties and nineties. Industrial production index is used for the proxy of gross domestic product since we use monthly data. For the variables of export, import, terms of trade and industrial production index, first of all ADF unit root tests are carried out. All of the variables are found to be same degree integrated. Thus, long run relations among the variables are examined in the framework of Johansen co-integration analysis. Provided with the long run relation, vector error correction model (VECM) is estimated. Granger causality tests based on VECM and modified Wald tests (MWALD) defined by Toda Yamamoto (1995) are carried out to determine the directions of the relations among the variables. According to the test results, export-led growth is verified for the specified period. [ABSTRACT FROM AUTHOR]