In microeconomic analysis functions with diminishing returns to scale (DRS) have frequently been employed. Various properties of increasing quasiconcave aggregator functions with DRS are derived. Furthermore duality in the classical sense as well as of a new type is studied for such aggregator...

This 150-page long book consists of 18 chapters and presents several dozens mathematical-economic models. One part consists of well-known models but the other models come from the author's research, mainly on pension economics. The book is written for readers who have a high-school education...

This 150-page long book consists of 18 chapters and presents several dozens mathematical-economic models. One part consists of well-known models but the other models come from the author's research, mainly on pension economics. The book is written for readers who have a high-school education...