TITLE:
How Can the Error Term Be Correlated with the Explanatory Variables on the R.H.S. of a Model?
AUTHORS:
Yunyun Lv
KEYWORDS:
Cointegration in the Longer Horizons, Simulation
JOURNAL NAME:
Theoretical Economics Letters,
Vol.7 No.3,
April
13,
2017
ABSTRACT: Since macroeconomic research cannot be replicated, most studies may claim
their conclusive research findings solely based on the statistical significance
of the estimated coefficients. In this framework, we use a small simulation
experiment to show that if variables affect the economy through different
horizons, even though the error term is not correlated with both the
explanatory variables on the right-hand side (R.H.S.) of a model and the
dependent variable from a traditional view, the estimated coefficients can
still be biased. The evidence provided by this paper may explain the refutation
and controversy results in the modern research.