Booking.com in 5 major European cities. Under a heteroskedastic framework, we document that individual ratings' volatility … noisy signals of the underlying hotel quality. Furthermore, we show that greater volatility in hotel ratings translates into … operators about the sources of ratings' volatility and how this affects social learning. …

consistent with the data. Banking regulation, while stabilizing at the aggregate level, may induce volatility at the household …

predicted by standard asset pricing models by including a term that is the product of the stock's idiosyncratic volatility and … volatility and expected stocks returns. Relying on forecast revisions from IBES, we construct a new variable that proxies for … this term and show that it explains a signi cant part of the empirical relation between idiosyncratic volatility and stock …

a number of firm characteristics, such as asset tangibility, cash flow volatility, access to capital markets, or agency …

(unit roots in levels together with fat tails in returns and volatility clustering). Our time series analysis of simulated …

firms can observe each other's decisions, they are able to increase the accuracy of their actions. While reducing volatility … at the individual level, social learning may lead to an increase in volatility at the aggregate level depending on the … network topology. Moreover, if the network is very asymmetric, aggregate volatility does not decay as predicted by the law of …

return volatility estimation. In particular, we use market microstructure theory to derive the cross-correlation function … informed conjectures as to improved volatility estimation methods. -- Realized Volatility ; Market Microstructure Theory ; High … between latent returns and market microstructure noise, which feature prominently in the recent volatility literature. The …

, thereby lowering interest rate volatility and contributing to economic stability. Most empirical studies support this view … volatility. To extend the literature, I use the Dincer and Eichengreen (2007) transparency index for twenty-four economies of … varying income and examine the impact of transparency on both predictability and market volatility. I find that higher …