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This study includes an econometric analysis of the export demand behaviour by using Turkey's annual data that cover 32 years periods from 1970 to 2002. In the study, the 'bounds test' method of Pesaran et al (2001) was used to investigate the long run relationship between export demand, and its determinants, namely income and relative prices. As a result of this empirical analysis, it was demonstrated that export volume, income and relative prices were cointegrated. The estimated long term elasticities of export demand with respect to income and relative prices are 0.21 and -1.684, respectively. The sum of the elasticities of import and export demand exceeds one (-1.01) i.e., Marshall-Lerner condition holds. These results show that monetary, fiscal and exchange rate policies may be used as substitutive policies to correct unfavourable trade balance.

This study presents a statistical analysis of the aggregated import demand behaviour for Turkey. In this study, a small sample of annual data from 1970 to 2002 were used to investigate the long run relationship between import demand, and its determinants, namely income and relative prices, by the 'bounds test' method of Pesaran et al (2001). By the results of this test, it was demonstrated that import volume, income and relative prices were cointegrated. The estimated long term elasticities of import demand with respect to income and relative prices were found as 0.37 and 0.67, respectively. As an absolute value, the sum of elasticities of import and export demand (-1.01) is greater than one. Consequently, we deduce that monetary, fiscal and exchange rate policies may be used as substitutive policies to arrange unfavourable trade balance. But they are not sufficient.

Bu çalışmada, uzun dönemli faiz oranı ile enflasyon oranı arasında bire birlik uzun dönemli bir ilişkinin mevcut olduğunu ifade eden Fisher etkisi, 1987(1)-2004(4) dönemine ilişkin Türkiye ekonomisi verileri kullanılarak test edilmektedir. Çalışmada, uygulamalı ekonometride Pesaran vd. (2001) tarafından yeni geliştirilen eşbütünleşmeye ARDL (autoregressive distributed lag) yaklaşımı kullanılmıştır. Elde edilen sonuçlar, Fisher etkisini desteklemektedir., In this study, the Fisher effect, which claims that there is one to one long-term relationship between the inflation rate and the long-term nominal interest rate, has been tested using Turkish quarterly data over the 1987(1)- 2004(4) periods. Here, ARDL bounds testing approach to cointegration newly developed by Pesaran et al. (2001) in applied econometrics is used. Results support the Fisher effect.