The volatility of Chinese GDP growth has been markedly lower since the mid-1990s. We utilize frequency domain and vector autoregression (VAR) methods to investigate the origin of the observed volatility reduction in the Chinese economy. Our estimation indicates that lower volatility of random...

This paper considers estimation and inference for varying-coefficient models with nonstationary regressors. We propose a nonparametric estimation method using penalized splines, which achieves the same optimal convergence rate as kernel-based methods, but enjoys computation advantages. Utilizing...

This study explores the convergence between the prices of American Depositary Receipts (ADRs) listed by Asia-Pacific firms and their original shares listed on home exchanges. Instead of relying on conventional parametric approaches that carry embedded model-specification errors, we contribute to...