Since the beginning of the 1990's, sick leave benefits accruing from the tax-financed Swedish social security insurance have been reduced a number of times. In this paper we use data from the survey on the Household Market and Non-market activities to estimate a fixed effects negative binomial...

In this paper we develop a simple maximum likelihood estimator for probit models where the regressors have measurement error. We first assume precise information about the reliability ratios (or, equivalently, the proxy correlations) of the regressors. We then show how reasonable bounds for the...

This paper proposes Lagrange multiplier (LM) based tests for the null hypothesis of no cointegration in panel data. The tests are general enough to allow for heteroskedastic and serially correlated errors, individual specific time trends, and a single structural break in both the intercept and...