While the global economic environment has changed considerably from end-2011 to the present for advanced and emerging economies alike, the themes and policy issues addressed by these papers share a timeless dimension. Collectively, the studies that comprise this volume deal with various aspects...

Many studies assume stock prices follow a random process known as geometric Brownian motion. Although approximately correct, this model fails to explain the frequent occurrence of extreme price movements, such as stock market crashes. Using a large collection of data from three different stock...

Stock prices are known to exhibit non-Gaussian dynamics, and there is much interest in understanding the origin of this behavior. Here, we present a model that explains the shape and scaling of the distribution of intraday stock price fluctuations (called intraday returns) and verify the model...