English to Chinese Social Sciences Social Science, Sociology, Ethics, etc.

How long has the company been operating pageants? Who are the directors? Usually pageants are operated by for-profit organizations that solicit participants by mail or print advertising, or by broadcast media, to compete for recognition and prizes from the promoter.
试译：
主办方运作选美大赛有多久历史了？负责人（？？）有哪些？运作选美大赛的通常是一些盈利性组织，它们通过邮件、印刷广告或者通过广播媒体，吸引参赛者前来争夺知名度以及发起人提供的奖金。