Kelly pryor, who has launched several successful entrepreneurial firms, seems to have a "sixth sense" that allows him to see opportunities that others miss. kelly's ability is referred to as

I believe the answer is:  entrepreneurial alertness

entrepreneurial alertness refers to the ability to see opportunities when it arise. People who had  entrepreneurial alertness tend to understand the market completely, including the type of products the consumers in that market wants and the method that shall be used to reach those consumers.

the factors that the economies of the muslim empires prosper were:

1- land trade routes-located between three continents  

2- sea trade routes

trade contributed to the spread of muslim empires, and with that islamic culture led to a growing feeling of internationalism resulted in the transfer of technology, science, and other cultural forms.