The purpose of this paper is to study a three-equation dynamic model. The first equation describes the commodity market. The second one demonstrates the dynamics of the money market and the third equation is the interest rate parity. The aim is to investigate the conditions of more complex...

A purpose of this paper is to formulate a continuous dynamical model for a small closed economy with a simple structure and with a minimum number of non-linearities. A basis of this model is developed from dynamical Kaldorian model. Variables in the modified dynamical Kaldorian model are in a...

We show that the cusp catastrophe model explains the crash of stock exchanges much better than other models. On the data of U.S. stock markets we demonstrate that the crash of 1987 may be better explained by cusp catastrophe theory, which is not true for the crash of 2001. With the help of...