A theoretical approach for Pareto-Zipf law

We suggest an analytical approach for Pareto-Zipf law, where we assume random multiplicative noise and fragmentation processes for the growth of the number of citizens of each city and the number of the cities, respectively.Comment: 6 pages 2 figures and dated for IJMPC Volume 19 presumably issue

A new model for competition between many languages

Time evolutions of number of cities, population of cities, world population, and size distribution of present languages are studied in terms of a new model, where population of each city increases by a random rate and decreases by a random division. World population and size distribution of languages come out in good agreement with the available empirical data.Comment: 6 pages 5 figure

The Enlargement of European Union and Labor Market: Trends and Challenges

In this paper the relationship between the EU labor markets and Eastern Enlargement is examined. Several issues will be examined throughout the paper, namely the current challenges and problems of the EU labor markets, their impacts on the overall competitiveness of the European economy, and the possible effects of the Eastern enlargement on both of these