This paper investigates the relationship between urbanization and CO2 emissions in a sample of 20 emerging countries over the period 1992–2008 using the semi-parametric panel data model with fixed effects, proposed by Baltagi and Li (2002). We find little evidence in support of an inverted-U...

We examine the (potentially nonlinear) relationship between inequality and growth using a method which does not require an a priori assumption on the underlying functional form. This approach reveals a plateau completely missed by commonly used (nonlinear) parametric approaches—the economy...