Using an array of unit root and structural break tests we find that the trend behavior of two air pollutants, Nitrogen Oxides (NOX) and Volatile Organic Compounds (VOCs), is substantially different. VOCs emissions are found to be trend-stationary with a break at the time the Clean Air Act of...

We model the two way interaction between education, corruption and the level of output. Corruption reduces income levels and hence educational attainment. Education in turn affects the incentives for corruption: more education increases output and thus the rents from corruption, but it also...

In this paper we consider the problem of making inference on a structural parameter in instrumental variables regression when the instruments are only weakly correlated with the endogenous explanatory variables.