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Title: Single-index predictive regression Authors:  Hsein Kew - Monash University (Australia) [presenting]
Weilun Zhou - Monash University (Australia)
Jiti Gao - Monash University (Australia)
David Harris - University of Melbourne (Australia)
Abstract: A semi-parametric single-index predictive regression model with multiple nonstationary predictors is studied that exhibit co-movement behaviour. Orthogonal series expansion is employed to approximate the unknown link function in the model and the estimator is derived from an optimization under the constraint of identification condition for index parameter. The main finding includes two types of super-consistency rates of the estimators of the index parameter along two orthogonal directions in a new coordinate system. The central limit theorem is established for a plug-in estimator of the unknown link function. In the empirical studies, we provide evidence in favour of nonlinear predictability of the stock return using long term yield and treasury bill rate.