This paper proposes an Augmented Dickey-Fuller (ADF) coefficient test for detecting the presence of a unit root in autoregressive moving average (ARMA) models of unknown order. Although the limit distribution of the coefficient estimate depends on nui-sance parameters, a simple transformation...

In this paper we study risk management based on the quantile regression. Unlike the traditional VaR estimation methods, the quantile regression approach allows for a general treatment on the error distribution and is robust to distributions with heavy tails. We estimate the VaRs of five...

This paper explores the impact of regulations imposed by the Chinese government on the development of the Chinese IPO market between 2000 and 2011. Some of these regulations have affected the population of Chinese firms that went public domestically, some firms being excluding from the domestic...