Conferences, exhibitions, festivals and incentive tours seem to be quite different from conferences, exhibitions and festivals. Why is it considered as an industry?

I happen to be a sophomore majoring in exhibition, and I have learned a little fur. Tell me my understanding. The above conferences, incentive tours, exhibitions and activities all belong to the micro-industry Expo. Convention and exhibition industry belongs to the third service industry, which provides intangible services. Conferences, exhibitions, festivals and incentive tourism are still intrinsically linked. Sometimes meetings and exhibitions are held at the same time, such as the launch of new products at trade fairs. There are many broad forms of meetings, such as exhibitions and forums, which are not limited to narrow meetings within the company. Sometimes, meetings and incentive tours will be held at the same time. Conference and incentive travel can be called incentive travel, which literally means meeting on a trip, possibly on a pleasant and relaxing night. Festivals like the Olympic Games are not only for holding a sports event, but also for promoting a country and a city, which will attract more enterprises to choose this place as a destination for conferences, exhibitions and incentive tourism in the future. For example, if you want to have a meeting, you need to have a suitable place, you need to choose a suitable city, a suitable venue or hotel, and so on. The same is true for exhibitions, social awards and festivals, and it is necessary to choose a suitable location. Therefore, meetings, exhibitions, incentive tours and festivals seem very different, but in fact they are still very related. We call it convention and exhibition industry in a broad sense.