The natural sciences have established a general scaling law that relates metabolism and body size of animals. Recently this association - known as Kleiber's law - has received deep theoretical foundation by network theory and has been fruitfully applied to explain various biological phenomena,...

This paper provides a critical analysis of the growth regressions in Burnside and Dollar (2000). First, we analyze the relation between aid and government expenditure in a modified neoclassical growth model. We find that while good policies spur growth they may at the same time lead to...