Charemza, Wojciech; Makarova, Svetlana; Lifshits, Mikhail - Department of Economics, European University at St. … - 2002
The paper introduces a t-ratio type test for detecting bilinearity in a stochastic unit root process. It appears that such process is a realistic approximation for many economic and financial time series. It is shown that, under the null of no bilinearity, the tests statistics are asymptotically...