This paper proposes a new overidentifying restrictions test in a linear model when the number of instruments (possibly weak) may be smaller or larger than the sample size n or even infinite in a heteroskedastic framework. The proposed J test combines two techniques: the Jackknife method and the...

We consider instrumental variables (IV) regression in a setting with many (possibly weak)instruments. In finite samples, the inclusion of an excessive number of moments may increasethe bias of IV estimators. We propose a Jackknife instrumental variables estimator (RJIVE) combined with...

The Phillips curve is central to discussions of inflation dynamics and monetary policy. In particular, the New Keynesian Phillips Curve is a valuable tool to describe how past inflation, expected future inflation, and real marginal cost or an output gap drive the current inflation rate. However,...