EXCHANGE RATE ADJUSTMENTS IN TURKEY ECONOMY, INVALIDITY OF J- EFFECT IN MARSHALL – LERNER CONDITION 2005 - 2017

One of the main reasons behind the unresolved and repeated economic crises that have been untold since many years is that the main reason behind the foreign trade deficit is the inability to have competitive advantage in foreign trade. The fact that the country has a production structure dependent on imported inputs in the economy and the fact that the export structure of the country's economy is included in the developing country groups is also an important reason for the negativities. In this study, the foreign trade developments of the Turkish economy will be based on the inadequacy of the Marshall-Lerner condition is greater than the demand flexibility of import and export is greater than 1. The effects of labor cost and labor productivity level, intermediate goods and capital goods used in production on foreign trade will be evaluated under the condition of Marshall-Lerner and J-Theor