The aim of this paper is to consider multivariate stochastic volatility models for large dimensional datasets. We suggest use of the principal component methodology of Stock and Watson (2002) for the stochastic volatility factor model discussed by Harvey, Ruiz, and Shephard (1994). The method is...

In this paper we present a generalization of power indices which includes the preferences of the voters. Using a Multilinear Extension perspective (Owen, 1972a) we measure the probability of the players' voting 'yes' for a particular political issue. Further, we randomize the issues and show the...

This paper proposes a new way of computing a coincident indicator for economic activity in France using data from business surveys. We use the generalized dynamic factor model à la Forni and others (2000) to extract common components from a large number of survey observations. The results...