Since 2004 some economies in Latin America, including Bolivia, have experienced an improvement in their terms of trade. In this research we investigate the causal effect of this improvement on nontraditional exports. We focus on before and after the increase in terms of trade and analyze how...

The cluster robust variance estimator (CRVE) relies on the number of clusters being large. A shorthand "rule of 42'' has emerged, but we show that unbalanced clusters invalidate it. Monte Carlo evidence suggests that rejection frequencies are higher for datasets with 50 clusters proportional to...

The work is devoted to estimates of individual returns to additional professional training (APT) on the example of a metallurgical enterprise of Sverdlovsk region of 2006–2010. We compare results of the OLS, fixed effects and difference-in-differences estimators. APTs that expand possibilities...

Understanding how higher education (HE) finance policy can affect HE decisions is important for understanding how governments can promote human capital accumulation. Yet there is a severe lack of evidence on the effectiveness of student aid in encouraging HE participation outside of the US, and...

Civil war in Syria, which started in March 2011, has led to a massive wave of forced immigration from the Northern Syria to the Southeastern regions of Turkey. This paper exploits this natural experiment to estimate the impact of Syrian refugees on the labor market outcomes of natives in Turkey....

We analyse the results of a survey conducted by the Bank of Italy in the spring of 2012 on Italian science and technology parks. First we describe the main features of science parks in Italy. Then we investigate whether they have been effective in improving the economic performance and...

The main objective of this study is to develop an economic analysis estimating the solid waste quantities and optimal hauling distance to install transfer stations in Colombia, according to landfill location. This goal is met by using a difference in differences approach (impact evaluation...

This paper explains the insights of the Stata's user written command diff for the estimation of Difference in Differences treatment effects (DID). The options and the formulas are detailed for the single DID, Kernel Propensity Score DID, Quantile DID and the balancing properties . An example of...

Since the late 1990s, Spain has played host to a sizeable flow of immigrants who have been absorbed into the compulsory stage of the education system. In this paper, our aim is to assess the impact of that exogenous increase in the number of immigrant students from 2003 to 2009 on grade...

Understanding how higher education (HE) finance policy can affect HE decisions is important for understanding how governments can promote human capital accumulation. Yet there is a severe lack of evidence on the effectiveness of student aid in encouraging HE participation outside of the US, and...