This study uses a rich dataset of 85 market pairs between January 2000 andOctober 2008 for Kenya, Tanzanian and Uganda, the three largest member countries ofthe East Africa Community, to analyze the factors determining national and cross-nationalmaize price transmission. Although the three...

We study quantile regression estimation for dynamic models with partially varying coefficients so that the values of some coefficients may be functions of informative covariates. Estimation of both parametric and nonparametric functional coefficients are proposed. In particular, we propose a...

A system of vector semiparametric nonlinear time series models is studied with possible dependence structures and nonstationarities in the parametric and nonparametric components. The parametric regressors may be endogenous while the nonparametric regressors are strictly exogenous. The...

This paper studies estimation of a partially specified spatial dynamic panel data regression with fixed-effects. Under the assumption of strictly exogenous regressors and strictly exogenous spatial weighting matrix, the model is estimated by 2SLS method aided by the sieve method and through the...

The paper investigates how entrepreneurial activity depends on economic development, measured by GDP per capita. The empirical analysis is based on GEM yearly data on 65 countries for the period from 2001 to 2011. We use nonparametric approach to show that variation in entrepreneurial activity...