The progress logic of mathematic modeling in economics was similar to any other field of engineering, e.g., mechanics. The was the evolution from simplest models to complex ones, from static relations to dynamic, from scalar problems to multidimensional, from linear problems to nonlinear, etc. However, the progress in classical mechanics was inseparably linked with the progress in mathematics and vice versa, they started applying well-developed by that time mathematical formalism to economy in the second half of the 20th century only. In many aspects, the difficulties of modeling of economics as a nature object are explained. Up to now, there is no such set of universally recognized laws which could be widely applicable, for example, Hook’s law or Coulomb’s law.