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Identifying relevant and irrelevant variables in sparse factor models (replic...
This paper considers factor estimation from heterogeneous data, where some of the variables-the relevant ones-are informative for estimating the factors, and others-the... -
Unit roots in the presence of abrupt governmental interventions with an appli...
This paper considers econometric issues related to time-series data that have been subject to abrupt governmental interventions. The motivating example for this study is the... -
Is there a unit root in the inflation rate? Evidence from sequential break an...
Using sequential trend break and panel data models, we investigate the unit root hypothesis for the inflation rates of thirteen OECD countries. With individual country tests, we...
