The purpose of the article was a space-time analysis of the unemployment rate in polish poviats. In the research we use a model in which spatial dependence is represented in the exponential form, based on the neighborhood matrix. This model, called the Matrix Exponential model, was proposed by J.P. LeSage and R.K. Pace in 2007. It is characterized by simplicity of estimation, which can compete with other known approaches. The presented analysis was a continuation of previous purely spatial studies (Müller-Frączek, Pietrzak 2011b). This article consists of three parts. Each of them provides an analysis of the unemployment rate registered in Poland at the end of the years 2004-2009. In the first part the unemployment rate was analyzed for each year separately. Almost linear changes of parameters of the space models, allowed us to build a space-time matrix exponential model MESS. It was described in the second part of the article. In the last part the results, obtained using the MESS model, were confronted with an approach based on spacetime autoregressive model.
This paper presents an analysis of expenditure on food of households in Poland in the years 1999–2010. Since their level and dynamics can be used as a measure of well-being of society this process was used to examine internal social convergence of regions, in this case the voivodships. The aim of this paper was to validate the hypothesis about the process for β-convergence in the share of household expenditure on food in total expenditures. The research has allowed the identification of long-term tendency of the level of expenditure on food in Polish households. Based on the analysis of conditional convergence, the article indicates household disposable income as a strong determinant of social convergence process in Poland. For the verification of hypotheses dynamic panel models were applied. The analysis was based on data from the CSO website. All calculations were performed in the Gretl.
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