求翻译：公司股票上市后可以自由转让。股东遇有急需或者对公司的经营发展不看好，可以将持有的股票转让出去，收回投资。此外，开办股票交易市场，既可以增加国家的税收，又可在客观上起到自发调节生产结构，平衡各行业投资比列的作用，有利于国家从中掌握有关信息，自觉地采取相应的宏观调控措施。是什么意思？

Transfer of company shares after listing was free. Shareholders in case of need or to management are not optimistic about the development of the company, equity holdings can be transferred away, to recover the investment. In addition, start-up stock trading market, which will increase the country's tax and objectively to the spontaneous adjust production structures, balancing the role of industry investment than columns, benefit the country from which the available information, consciously adopt corresponding macroeconomic control measures.