If a sociologist says that nations evolve towards more advanced technology and more complex industry as their citizens learn cultural values that celebrate hard work and success, she is using theory to study the global economy.

modernization theory

Explanation:

Modernization theory is used to explain the process of modernization within societies. Modernization refers to a model of a progressive transition from a 'pre-modern', '''local' or 'traditional' to a 'modern' society.

in this scenario it would be the consumer demand as most influential in making the decision. the band members need to figure out where and from whom they will make the most money, in other words who out of the two consumer groups - football fans or car drivers - will spend their money, who is more likely to contribute to their cause and buy what they are offering.

this is not a question