This paper tests for the existence of a non-linear pattern in the process of real economic convergence. It uses a sample of 88 countries for the period 1980-1999.

Urban systems are becoming increasingly complex as urban economies, social and political structures and norms, infrastructure systems and technologies evolve. Therefore, the development of operational urban simulation models is required in order to achieve an improvement of the quality of...

Această lucrare prezintă doi estimatori mai puţin cunoscuţi pentru vizualizarea funcţiilor de densitate şi a relaţiilor dintre variabile. Aceşti estimatori sunt neparametrici in sensul că nu sunt necesare ipoteze a priori privind forma funcţională a dependenţelor. In prezentare s-a...