Several empirical findings have challenged the traditional trade-off between risk and incentives. By combining risk aversion and limited liability in a standard principal-agent model the empirical puzzle on the positive relationship between risk and incentives can be explained.

Energy prices have exhibited significant volatility in recent years. For example, natural gas pricesranged from $4 to $15 per MM BTU's in calendar years 2005 through 2011. Future prices are uncertainbut are likely to retain a high level of volatility. This volatility complicates analysis of...

Most macroeconomic data is continuously revised as additional information becomes available. We suggest that revisions of data is an increasingly important source of uncertainty about the state of the economy and offer an alternative channel of uncertainty - data uncertainty. This paper adds on...