According to purchasing power parity (PPP), the nominal exchange rate between the two currencies should be equal to the ratio of the total price levels between the two countries. In other words, it is a simple theory that argues that countries' currencies will have the same purchasing value. In this study, 25 OECD countries is aimed to test the validity of the purchasing power parity hypothesis. The validity of the hypothesis was tested with the monthly data of 1980-Q1 2018-Q12 and Fourier KPSS unit root tests. As a result of the analysis, the validity of the purchasing power parity hypothesis was provided in Brazil,
There are many studies in the literature on child labor. However, most of these studies are based on statistics on children, or the factors that cause child labor are explained as economic concepts. The purpose of this study is to investigate the reasons why school-age children adopt the role of "child laborer" and determine the effects of these factors. In this context, in order to examine the factors affecting child labor in developing countries, this study has tried to determine the factors causing child labor with dynamic panel data analysis using MINT Countries data for the period of 1990-2018. The countries' development levels and poverty are closely related to child labor. For this reason, the human development index is added to the model as a dependent variable. Considering the studies in the literature, population growth, primary school enrollment rate, primary school duration, and labor force participation rate variables were added to the model as independent variables. At the end of the analysis, all variables were found to be statistically significant. The effect of population growth and the number of primary school students on the human development index was negative, while the effect of other variables was positive.
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