This paper argues that typical applications of panel unit root tests should take possible nonstationarity in the volatility process of the innovations of the panel time series into account. Nonstationarity volatility arises for instance when there are structural breaks in the innovation...

Large regional unemployment disparities are a common feature of the labor market in many countries. This study deals with the question whether regional unemployment disparities in western Germany widen, become narrower or remain constant over time. It examines the hypothesis of convergence for...

In the academic literature, the economic interpretation of stock market volatility is inherently ambivalent, being considered an indicator of either information flow or uncertainty. We show in a stylized model economy that both views suggest volatility-dependent cross-market spillovers. If...

This book examines the complexity of trading and the creation of liquidity. Titled after the Baruch College Financial Markets Conference, Equity Market Round-Up: Proposals for Strengthening the Markets, this book explores how regulation has a clear impact on market structure and, therefore, how...

We analyze stock market reactions to announcements of political appointments from the private sector and corporate appointments of former government officials. Using unique data on corporate affiliations and announcements of all Senate-confirmed U.S. Defense Department appointees of six...

Introduction -- Part I. Asset Pricing -- Chapter 1. Oil Price Uncertainty: Panel Evidence from the G7 and BRICS Countries -- Chapter 2. Climate Risk and the Volatility of Agricultural Commodity Price Fluctuations: A Forecasting Experiment -- Chapter 3. Linking the COVID-19 Epidemic and Emerging...

This paper proposes a latent dynamic factor model for low- as well as high-dimensional realized covariance matrices of stock returns. The approach is based on the matrix logarithm and allows for flexible dynamic dependence patterns by combining common latent factors driven by HAR dynamics and...