I can onla share Croatian experience which is that there is significantly strongdr demand than supply of  business in ubators. They are percieved as the best option for start-upsdue to symbolic "lodging" charges and different types of non-finan ial support, like consultance service, education. 

In China the personnel in some incubtors will offer one to one service, each staff will support about five start-ups. they clearly know start-ups demand, help them apply for project support from government, help them etablish cooperating relation with university or technique alliance, and help them select availabe undergraduates, and so on, the connecting personnel usually have good relation with his supporting start-ups, and they will help incubtor attract more start-ups.

For business Incubators support from government is very important as well as  cooperating relation with university in country. In BiH, generally speaking, entrepreneurs find legislation a burden. Mitchell at al. (2000) describe the use of "cognitive scripts" to establish a new venture. Identify entrepreneurs for whom incubation with an organization or business sector has been important and entrepreneurs for whom it has been less important.