Study on great heritage relic protection and the development of regional tourism economy 并列题名：Study on great heritage relic protection and the development of regional tourism economy Study on the government behavior in the development of regional tourism industry Study on private equity and the development of private economy Study on tax policies promoting the development of circulareconomy study on the function and development of China finance company 并列题名：Study on private equity and the development of private economy Research on sustainable development of regional tourism ecosystem Function of ICT in the development of regional economy 并列题名：Research on sustainable development of regional tourism ecosystem