This paper examines search with active learning and correlated information. We firstdevelop a simple model to show how correlation affects the decision to acquire information.A unique data set on fishing site choice by mid-Atlantic clam fishermen is used to test themodel predictions. Results...

In this paper we propose tests for hypotheses regarding the parameters of the deterministictrend function of a univariate time series. The tests do not require knowledge of the form ofserial correlation in the data and they are robust to strong serial correlation. The data cancontain a unit root...

Pairwise stock correlations increase by 27% on average when stock returns arenegative. It is trading activity in small stocks that leads to higher correlationswhen returns are negative. We provide evidence consistent with the hypothesisthat co-ordinated selling by retail investors drives this...

This article defines correlation products andexplores the problems they raise for risk management systemsin financial institutions. It explains the difficulties ofanalyzing nonseparable risk in one type of correlation product,the differential (diff) swap, and describes the much simpler...

Recent empirical studies claim to have identified roots of Africa’s poverty in its colonial past, particularly in the ‘extractive’ or ‘illegitimate’ institutions that the colonial powers bequeathed. While taking a similar quantitative approach this paper accepts the view of many...

This paper extends the approach of measuring and stress-testing the systemic risk of a banking sector in Huang, Zhou, and Zhu (2009) to identifying various sources of financial instability and to allocating systemic risk to individual financial institutions. The systemic risk measure, defined as...

This paper shows how a simple modi…fication of estimators based on the RandomEffects principle can preserve the consistency and asymptotic efficiency of the methodin panel data despite non-ignorable persistent heterogeneity driven by correlationsbetween the heterogeneity and the regressors. The...

The paper discusses the major identi…fication issue of coherency conditions in LDVmodels with endogeneity and flexible temporal and contemporaneous correlations inthe unobservables. Conditions for coherency as discussed in the existing literatureare reviewed and shown to be rather esoteric. Two...

A central role for economic policy involves reducing the incidence of systemic downturns,when key economic variables experience joint extreme events. In this paper,we empirically analyze such asymmetric dependence using two approaches, correlationsand copulas. We document four findings. First,...

This paper presents an equilibrium model that provides a rational explanation for twofeatures of data that have been considered puzzling: The positive relation between USdividend yields and nominal interest rates, often called the Fed-model, and the time-varying correlation of US stock and bond...