We consider the issue of cross-sectional aggregation in nonstationary and heterogeneous panels where each unit cointegrates. We derive asymptotic properties of the aggregate estimate, and necessary and su¢ cient conditions for cointegration to hold in the aggregate relationship. We then analyze...

In this paper, we provide a coherent theoretical investigation of the relationship between cross-section and time series measures of uncer- tainty, which are often employed as perfect substitutes in empirical applica- tions. The main .nding of our analysis is that there exists an ambiguous sign...

This paper investigates the role of cross-sectional dependence among private forecasters, assessing its impact on the measurement and use of the forecasting uncertainty. We determine the circumstances under which cross-sectional measures of uncertainty (such as the disagreement across...

A widely relied upon but a formally untested consideration is the issue of stability in actors underlying the term structure of interest rates. In testing for stability, practitioners as well as academics have employed ad yhoc techniques such as splitting the sample into a few sub-periods and...

This paper proposes the copula-based tests for testing cross-sectional independence of panel models.

This paper processes copula-based tests for testing cross-sectional independence of panel models.