We investigate the influence of residual serial correlation and of the time dimension on statistical inference for a unit root in dynamic longitudinal data, known as panel data in econometrics. To this end, we introduce two test statistics based on method of moments estimators. The first is...

Subordination of business to political influence has remains pervasive in China. We construct a Schumpeterian-type model of growth with managerial time allocation between productive activities and building up political connections. The model predicts the impact of different patterns of state...

As is well known, ignoring spatial heterogeneity leads to biased parameter estimates, while omitting the spatial lag of a dependent variable results in biasness and inconsistency (Anselin, 1988). However, the common approach to analysing households' expenditures is to ignore the potential...