As the Chinese economic reform, the citizens of China are becoming rich. Most of them would like to go travel to other countries or the city that is nearby China, such as Hong Kong. This is not good for the economy, because they have increased the price of everything in that country. However, there is good news for Hong Kong because the Chinese tourist arrivals fall in this year because of the protest that happened in 2014. Also, the government of Hong Kong and tycoons are trying to build a new shopping center, which is near China. Recently, there is a drop in mainland shoppers in Hong Kong. In the past ten years, there were too many Chinese tourists came to Hong Kong for shopping because there is no sales tax in Hong Kong. Therefore, the goods in Hong Kong are relatively cheaper than in China or even other countries. Also, the quality of the goods in Hong Kong are better than that in China, so they tend to buy goods in Hong Kong. Nevertheless, they did not only buy the product of the luxury brands, but also the daily commodities. Moreover, there is a very serious trading problem in Hong Kong as well. That increased the quantity demanded of daily commodities, but the quantity supplied of it did not change. Therefore, the price of the daily commodities has increased significantly, but the salaries of the local citizens did not increase. Therefore, even the local citizens could not afford the expensive daily commodities. Due to the drop of the mainland tourists, the quantity demanded of the daily commodities decreases; so, the price of it can back to normal. Due to the pro-democracy protest, which happened in last year in Hong Kong, the Chinese tourists arrival fall. It is because there are a lot of conflicts between the local Hong Kong citizens and the Chinese tourist, so they are afraid of the discrimination from the local Hong Kong citizens. Therefore, some of the wealthier Chinese tourists tend to visit Japan or South Korea instea