Theories about the observable world aren't supposed to be provable, they're supposed to be falsifiable. You can't prove a theory based on empirical observation

Theories about the observable world aren't supposed to be provable, they're supposed to be falsifiable. You can't prove a theory based on empirical observation. Economic theories are tested--and often shown to be lacking--by statistical models; that's the entire point of the models. Economists test and falsify each other's work all the time. You basically couldn't be more wrong if you tried.