This paper warns the risks of uncritically adopting the mind set of statisticians in empirical analysis. The examples of vector autoregressions, forecast combinations and measurement of treatment effects are used to illustrate the fragility of statistical inference when sample observations are...

We explain the proliferation of panel data studies in terms of (i) data availability; (ii) the heightened capacity for modeling the complexity of human behavior than a single cross-section or time series data can possibly allow; and (iii) challenging methodology. Advantages and issues of panel...

This paper reviews the literature on the impact of marijuana decriminalization policy on marijuana smoking prevalence. Due to mixed findings in the existing studies, we attempt to find a common basis to explain the different results across papers. The main purpose is to provide a coherent...