Hausman (1978) developed a widely-used model specification test that has passed the test of time. The test is based on two estimators, one being consistent under the null hypothesis but inconsistent under the alternative, and the other being consistent under both the null and alternative...

Nigeria has been depending on oil as its major export commodity for decades leading to the neglect of other vital economic resources. This situation led to massive unemployment as a result of an undiversified economic system, which in turn created an alarming paucity of external accruals to...

Nigeria has been depending on oil as its major export commodity for decades leading to the neglect of other vital economic resources. This situation led to massive unemployment as a result of an undiversified economic system, which in turn created an alarming paucity of external accruals to...

This paper discusses nonparametric kernel regression with the regressor being a \(d\)-dimensional \(\beta\)-null recurrent process in presence of conditional heteroscedasticity. We show that the mean function estimator is consistent with convergence rate \(\sqrt{n(T)h^{d}}\), where \(n(T)\) is...

This paper derives and estimates a barro-type reduced form equation for domestic real output from a simple structural model of an open developing economy in which markets clear continuously and expectations are rational. The form in which open economy variables appeared was explicitly derived...

This article presents a critical appraisal of three different econometric techniques commonly employed to analyze causal relationships among economic series. Our results indicate that the empirical application of the Granger causality test, the Engle-Granger cointegration test and the Hausman...

This study conducts an investigation into the extent of cointegration between imports and exports and asymmetries in the adjustment of the U.S. current account over the study period 1960Q4-2007Q2. We find evidence in favor of cointegration through the application of the standard Johansen...

This paper develops equilibrium correction models for money demand of European-wide monetary aggregates based on a multivariate cointegration analysis. It will be shown that whether or not the UK is a member of the monetary union does not affect the empirical stability of area-wide money demand...