economic management is on the economic effects of production, construction, investment in production, exchange, circulation, distribution, accumulation, consumption and other economic relations regulation and management. Economic management is the rational organization of production and the national economy, economic relations and properly handle all kinds of distribution, reasonable arrangements for accumulation and consumption ratio, effective measures to improve economic efficiency, but also to use economic measures to manage the economy, an important means to ensure sustained and steady development of the national economy .

tender and these are two concepts

example, I have a company, my company's office needs a number of office furniture, and now I can put some of the media, etc. I announce this demand out hope the company has received this list, of course, then the list is certainly more than one, I'm going to take this list of these companies in the election of a unit based on certain rules, a process called "tender"
If you are office furniture company, you now find me the company needs office furniture, you can propose to the company, the proposed time you definitely need to give me some of your company where the company's basic information, what qualifications, this process is called "tender"