We compare density forecasts of the Samp;P 500 index from 1991 to 2004, obtained from option prices and daily and five-minute index returns. Risk-neutral densities are given by using option prices to estimate diffusion and jump-diffusion processes, that incorporate stochastic volatility, and...

Previous research indicates there is a complex relationship between parental income support receipt and child mortality. This research improves understanding of the relationship using a unique administrative dataset, the Second Transgenerational Data Set (TDS2), which contains information on...

This paper studies the cause of China’s provincial export disparity, especially the difference among coastal provinces. Both time-invariant and time-variant factors are studied. The paper estimates the effects of time-invariant factors on the export orientation of the economy. It argues that...