Abstract
This paper employs the post — Least Absolute Shrinkage and Selection Operator (post — LASSO) to make rolling 1-month--ahead currency excess return forecasts using all other currencies' lagged forward discounts as candidate predictors. The trading strategy of buying (selling) quintile currency portfolios of the high (low) post — LASSO forecasts yields a monthly excess return of 1.05% for the 48-currency sample. The results do not change even after controlling for various predictors. The return predictive power of the post — LASSO comes from two sources. First, it identifies the origin currencies of information spillovers in the FX market, which are sparse and time-varying. Second, it incorporates cross-sectional variations in currencies' predictive relations with the origin currencies.
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