Abstract (Translated):
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 from mathematics; i.e. neither calculus nor matrix theory is applied. Though some probability and mathematical statistics are used at the end of the book, they are explained. It is presumed that the readers are ready for autonomous thinking and are capable to make calculations on their personal computers.