ASYMPTOTIC DISTRIBUTION;
AUTOREGRESSIVE INTEGRATED MOVING AVERAGE MODEL;
BROWNIAN MOTION;
CONSISTENCY;
MACROECONOMIC TIME SERIES;
MONTE-CARLO SIMULATION;
D O I:
10.2307/1391480
中图分类号:
F [经济];
学科分类号:
02 ;
摘要:
This article investigates several U.S. macroeconomic time series for the presence of a unit root using a newly developed test. This test has stationarity as its null hypothesis, and the alternative is a unit-root process. The test is shown to be consistent, and its asymptotic null distribution is determined. Our findings contrast sharply with those obtained via the standard unit-root tests.