Alcohol taxation is an important policy instrument for correcting for market failures associated with excessive alcohol consumption. This paper examines the beverage-specific negative externalities by providing empirical evidence linking ten alcohol beverage types to drink driving and hazardous,...

This paper proposes a simple and improved nonparametric unit-root test. An asymptotic distribution of the proposed test is established. Finite sample comparisons with an existing nonparametric test are discussed. Some issues about possible extensions are outlined

In this paper, we consider a panel data model which allows for heterogeneous time trends at different locations. We propose a new estimation method for the panel data model before we establish an asymptotic theory for the proposed estimation method. For inferential purposes, we develop a...