In the theoretical part of research authors will establish connections and diversities between human capital and human resources categories. Afterwards it will be presented the overview of theoretical-methodological achievements in the measurement of value of human capital on the macro level, development of human resources and their contribution to economic growth. It will be analyzed dynamics of changes of Human development index (HDI) and dynamics of change of level of GDP per capita for groups of countries of different economic development (undeveloped, lower middle income, higher middle income and highly developed countries) in order to establish how extent of change in the development of human resources are necessary for the transit to the higher development level. In the empirical part of research, via HDI, it will be evaluated the development of human resources in Republic Of Croatia and in Primorsko-goranska County and in will be evaluated relation between HDI and GDP per capita of Croatia and in Primorsko-goranska County. Authors will also analyze how much development of human resources has contributed to the economic growth of Republic Of Croatia. In order to demonstrate this it will be measured influence of investment, employment and educational structures (the indirect indicator of development of human resources) on the growth of GDP in the period of 1997-2005 with usage of regression analyses. Key words: human resources, economic growth, development

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