Exam short answer: please briefly describe the relationship between technical economics and other economics

Technical economics, is the study of various social activities in the economy in line with the degree of evaluation of purpose, that is, from the perspective of the study of the consumption of social labor and the social system of various practical activities in the effectiveness of the quantitative relationship between each other, the evaluation of human practical activities of science. The main branches are agricultural technology and economy, industrial technology and economy, transportation technology and economy, energy technology and economy, construction technology and economy, and productivity layout technology and economy. Through scientific theories and methods, it calculates, analyzes and evaluates the technical and economic effects in order to measure their technical advancement, economic rationality and feasibility in social practice.

As an economic discipline with distinctive practicality, technical economics is both related and different from applied economic disciplines such as scale economics and production layout. The connection lies in the fact that it has to draw theoretical nutrients from various applied economic disciplines and explore ways to rationally organize social production; the difference lies in the fact that it only provides general theories, methods, and principles for various applied economic disciplines, but does not provide special theories, methods, and principles suitable for a certain applied economic discipline, and it does not carry out special exploration and argumentation on behalf of them.

Traditional economics explains economic development and the accumulation of social wealth in terms of the exchange of labor products to promote the social division of labor, and the social division of labor to promote the development of technology and the increase of productivity, so technology has been the central aspect of the study of classical economics. The new western economics only treats technological factors as exogenous variables of the economic system, and in the contribution to economic growth, only the most important factor of technological progress is regarded as the remaining part except capital and labor inputs, which completely departs from the analytical framework of classical economics that promotes economic development through technology, and lacks more and more explanatory power for contemporary economic growth. Hence the establishment of the economics of technology. And take it as a branch of economics, on the one hand, the economic analysis of changes in technology, on the other hand, from the changes in technology to analyze the changes in the economy.