One of the most noticeable stylized facts in finance is that stock index returns are negatively correlated with changes in volatility. The economic rationale for the effect is still controversial. The competing explanations have different implications for the origin of the relationship: Are...

We study the effect of the home bias on international asset pricing by extending the core-satellite approach of active asset allocation to an equilibrium analysis. In this framework, investors combine a common core portfolio with an active investment in their home asset. In equilibrium, the core...

The implied volatilities provided by OptionMetrics in the IvyDB database suggest substantial deviations from put-call parity that do not really exist. In S&P 500 options, artificial deviations occur because OptionMetrics uses non-synchronous index and option prices and an average implied...

The Data Colada blog post 98 presents evidence that the data in the paper in question were fabricated in two ways: the miles driven were generated as random numbers from a uniform distribution between 0 and 50,000, and the initial datasets in font ‘Calibri’ were duplicated in font...