Determinants of students' performance have been the subject of ongoing debate among educators, academics, and policy makers. There have been many studies that sought to examine this issue and their findings point out to hard work, previous schooling, parents’ education, family income and self...

This paper investigates the linkages between financial development and economic growth in the Middle East using newly developed methods of panel cointegration along with the popular time series methodologies such as the Johansen's cointegration, Granger causality, and the variance...

We build a dynamic, general equilibrium model of a small, open, semi-industrialized country with overlapping wage contracts, wage indexation, and indexation lags. We calibrate and simulate the model in order to assess the role of wage contracts in explaining the features of recent real-world...

We construct an aggregate data panel for the GCC's six countries and verify the cointegration hypothesis among the variables of the money demand function using Pedroni's heterogeneous panel cointegration tests (2001). Then, we estimate the idiosyncratic, panel and group-mean cointegrating...

To study the elasticities of import demand function, we build a heterogeneous panel with data of 40 counties and use panel unit root tests (Im, Pesaran and Shin, 1997) and panel cointegration tests (Pedroni, forthcoming). We test our model with two previously used activity variables: GDP and GDP...

We construct an aggregate data panel to estimate price and income elasticities of the Arab countries imports from and exports to euro zone. We study the non-stationarity of our series and verify the cointegration hypothesis among the variables using Pedroni's heterogeneous panel cointegration...

This paper studies the long and short-run relationship between oil exports, non oil GDP and investment in five major oil exporting countries. Its goal is to verify the effect of natural resources exports on the economic performance. It considers the effect of cross sectional correlations and...

I present a simple and easy-to-prepare classroom experiment to make the concept of increasing opportunity cost easier to understand. Also, the exercise is designed to make a clear link between this concept and the shape of the Production Possibilities Frontier. The results show a clear...