In this paper, we study maximum likelihood estimation and Lagrange multiplier testing of a one-way error components regression model suitable for incomplete panel and including parametrically specified variance functions for both individual-specific and general error disturbances.

In this paper we investigate the determinants of municipal labour demand in Sweden 1988-1995. Utilising a major grant reform in 1993, through which a switch from mainly targeted to mainly general central government grants occurred, we are able to identify which type of grants that have the...

It is a well-known property that standard GMM estimators for dynamic panel data might perform poorly in small samples. Several papers have noted this to be especially true for the estimated standard errors, which are normally biased downwards. The aim of the present paper is to compare how two...

Aid flows are included into the standard cross-country catch-up relation. Robust¬ness of the result is tested by changing time periods and by adding extra variables. The main results are: Absolute conver¬gence and absolute aid effec¬ti¬ve¬ness are both rejected. While conditional...

This Paper analyses the persistence of poverty in Sweden using a hazard rate model based on multiple spells. The model also accounts for unobserved heterogeneity and possibly endogenous initial conditions. We estimate the model on a large representative Swedish panel dataset, LINDA, for the...

Barter in Russia can be explained by firms' liquidity constraint: it is strongly correlated with financial tightness. However, a microeconomic analysis reveals that the rationale behind this liquidity constraint is different according to the firm situation. For firms in a good economic...

The paper investigates the relative importance of trade and immigration for earnings and job mobility of male German workers. Using panel data, changes of workplace within a firm and between firms are separated from occupational changes. Various subgroups are investigated, differentiating...

The aim of this article is to estimate the technical efficiency of the productive regional sectors and explore the influence of the infrastructure endowments in this analysis. To do this, we used the non parametric approach of DEA to compute Malmquist productivity indexes that allow us to...

In the extant literature either income or consumption expenditures as measured over short periods of time has been regarded as proxies for the material well-being of households. However, economists have long recognized that a household's sense of well-being depends not just on its average income...

This paper investigates whether firms innovate persistently or discontinuously over time using an innovation panel data set on German manufacturing and service firms for the period 1994-2002. We find that innovation behaviour is permanent at the firm-level to a very large extent. Using a dynamic...