We propose an integrated framework to discuss the empirical literature on the local determinants of agglomeration effects. We start by presenting the theoretical mechanisms that ground individual and aggregate empirical specifications. We gradually introduce static effects, dynamic effects, and...

The topic of volatility measurement and estimation is central to financial and more generally time series econometrics. In this paper, we begin by surveying models of volatility, both discrete and continuous, and then we summarize some selected empirical findings from the literature. In...

Traditional econometric analysis concentrate on classical methods which are far from suitable handling actual economic problems. Modern econometric analysis tries to develop new approaches from an economic perspective. As a consequence, there is less of a unified econometric theory than in...