The World Bank's World Development Indicators (WDI) compilation is a rich and widely used dataset about development of most economies in the world. However, after obtaining the data from the World Bank’s web site or the WDI CD-ROM, users need to manage or reorganize the data in a certain way...

The ultimate goal of most non-market valuation studies is to obtain welfare measures i.e. mean and/or median willingness to pay (WTP) and confidence intervals. While the delta (nlcom) and bootstrap (bs) methods can be used for constructing such confidence intervals in Stata, they are not...

This recently completed AEDE study funded by Ohio DOD involves a geo-referenced inventory by county of Ohio biomass resources for energy. Categories include forest and crop residues, livestock manure, municipal solid waste and food processing waste. This is an update and expansion of an earlier...

Previous works on the determinants of corruption seldom addressed cross-border spillover of corruption in cross-country panel studies. In this paper, we report evidence of spatial spillover of corruption by means of spatial dynamic panel model. The results confirm that perceived levels of...

Previous studies in the environmental Kuznets curve have overlooked spatial interdependence and this could bias the estimates. This paper therefore addresses the issue of spatial interdependence in the environmental Kuznets curve by using panel data on European countries over the period of...

The World Bank’s world development indicators (WDI) compilation is a rich and widely used database about the development of most economies in the world. However, after insheeting a WDI dataset, some data management is required prior to performing statistical analysis. In this article, I...

This article introduces a new Stata command, labcenswdi, to automatically manage databases that provide variable descriptions on the second row in a dataset. While renaming all variables and converting them from string to numeric, labcenswdi automatically manages the variable descriptions...

Contingent valuation method is commonly used in the field of health economics in an attempt to help policy maker in taking decisions. The use of the double-bounded dichotomous choice format results in a substantial gain in statistical efficiency over the single bounded dichotomous choice format....

The poverty rate and income transfer are clearly correlated. However, not much research has attempted to determine the causal linkage between the two. Previous research has primarily focused on the poverty-reducing impact of income transfer. In this paper, we apply a simultaneous equation system...