The reason lies in the powerful driving effect of the convention and exhibition economy. The convention and exhibition is an industry that highly concentrates logistics, human flow and information flow in a short period of time, and in the process of gathering, it drives the rapid development of food and beverage, lodging, consumption, communication, logistics, tourism, transportation, etc., thus promotes the development of the city's economy, and then generates significant economic benefits.

Expanded Information:

The exhibition activity has a long history. In China, its origins can be traced back to the ancient social festivals. From the royal family down to the people all participate in the social festival activities, in the social festival activities without dance, music, as a sacrifice to the gods to entertain people. Frequent festivals are held at or near temples.

Traders see the incense burning and worship of the Buddha, so outside the temple set up a variety of stalls to make money, thus forming a religious, cultural, economic, entertainment and other content, including the temple market, and gradually evolved bazaar trade activities, evolved to the present day the formation of the Convention and Exhibition activities.

International exhibitions and fairs are the products of economic globalization. In the medieval era, as the predecessor of the exhibition of trade fairs on a regular or irregular basis in the population concentration, the more developed commercial European cities. By the end of the 15th century and the beginning of the 16th century, the economic and cultural exchanges between the continents of the world were close, forming an international market connecting the Atlantic Ocean, the Pacific Ocean and the Indian Ocean, and the international exhibition industry formed a germ.

The basic forms of exhibition activities are conferences, exhibitions, fairs, trade fairs, exhibitions and displays, etc., and the World's Fair is the most typical exhibition activity. Narrowly defined convention and exhibition activities only refer to exhibitions and conferences; broadly defined convention and exhibition is the collective name of conferences, exhibitions and festivals.

Conventions and exhibitions have powerful economic functions and information transfer functions, including contact and transaction functions, integrated marketing functions, regulating supply and demand functions, technology diffusion functions, industrial linkage functions, information distribution functions, which can promote the integrated development of economy.