Lietuvos BVP tyrimas (anglų kalba). Introduction. Theoretical part. General concepts and definitions. Criticism of GDP. Development of economy of Lithuania. Structure of GDP. Methods of estimates of GDP. GDP by production approach. GDP by expenditure approach. GDP by income approach. Methods, applied in practical part. Descriptive statistics. Correlation and regression analysis. Forecasting. Descriptive statistics. Econometric analysis. Correlation analysis. Simple regression analysis. Multiple regression analysis. Forecasting. Moving average method. Exponential smoothing method. Conclusions.