We consider additive intensity (Aalen) models as an alternative to the multiplicative intensity (Cox) models for analyzing the default risk of a sample of rated, nonfinancial U.S. firms. The setting allows for estimating and testing the significance of time-varying effects. We use a variety of...

In this paper we investigate a class of semi-parametric models for panel data sets where the cross-section and time dimensions are large. Our model contains a latent time series that is to be estimated and perhaps forecasted along with a non-parametric covariate effect. Our model is motivated by...

In many stated choice experiments researchers observe the random variables <italic>V</italic>, <italic>X</italic>, and <italic>Y</italic> = 1{<italic>U</italic> + <italic>δ</italic>^⊤<italic>X</italic> + ε<italic>null</italic> < <italic>V</italic>}, <italic>t</italic> ≤ <italic>T</italic>, where <italic>δ</italic> is an unknown parameter and <italic>U</italic> and ε<italic>null</italic> are unobservable random variables. We show that under weak assumptions the distributions of <italic>U</italic> and ε<italic>null</italic> and also the...</<italic>