A covariance-stationary vector of variables has a Wold representation whose coefficients can be semiparametrically estimated by local projections (Jordagrave;, 2005). Substituting the Wold representations for variables in model expressions generates restrictions that can be used by the method of...

This paper documents the importance of high-frequency plant shutdowns in auto assembly plants in generating the observed procyclicality of an aggregate labor productivity series for that industry. An important fact about plant shutdowns in this industry is that some workers typically remain at...

This paper introduces a class of statistical tests for the hypothesis that some feature of a data set is common to several variables. A feature is detected in a single series by a hypothesis test where the null is that it is absent, and the alternative is that it is present. Examples are serial...