of factor jumps. Such jump dependence is implied by standard linear factor models. Our inference is based on a panel of … restriction on the relative magnitude of these two dimensions of the panel. The test is formed from the high‐frequency returns at …

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 … enjoyed by many industrialized countries, known as the "Great Moderation". It also proposes a new testing approach for panel …

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 … enjoyed by many industrialized countries, known as the `Great Moderation.' It also proposes a new testing approach for panel …

account impacts from oil price return and oil price volatility on forecast changes. The panel smooth transition regression …

a portfolio of financial assets. We argue that the combination of quantile panel regression and wavelet decomposition of …

Volatility break robust panel unit root tests (PURTs) recently proposed by Herwartz and Siedenburg (Computational …