In this paper we introduce a new test of the null hypothesis of no cointegration between a pair of time series. For a very simple generating model, our test compares favourably with the Engle-Granger/Dickey-Fuller test and the Johansen trace test. Indeed, shortcomings of the former motivated the...

In this paper we consider the situation where the deterministic components of the processes generating individual series are linear trends and the individual series are independent I(0) or I(1) processes. We show that when those time series are used in ordinary least square regression, the...

Although the fast advancing smartphone technology makes connectivity possible for shoppers to reach almost any online shopping mall, it does not ensure success in the development of an online shopping platform for smartphone technology. This research studied the buyers' perception about mobile...

This paper proposes methods for estimation and inference in multivariate, multi-quantile models. The theory can simultaneously accommodate models with multiple random variables, multiple confidence levels, and multiple lags of the associated quantiles. The proposed framework can be conveniently...

The Korean high school system is regulated and monitored by then government to ensure that (i) middle school graduates are randomly assigned to private and public high schools and (ii) the tuitions are the same for both institutions. Hence, any difference between the academic performances of the...