What do you think about economists, who study the theories of economics and brag about being vast in the study of economics, yet doesn't help or contribute sufficiently to control or stop world economic meltdown?
The best theory is the theory that is practiced and implemented. If it was just a theory, anyone could make it, but what is difficult is implementing what is in theory into real life to overcome existing economic problems. In my opinion, economists make quite a big contribution in overcoming economic problems and in increasing economic progress. It's just that the implementation of theory is not optimal and there are other inhibiting factors because sometimes what is in theory is different from what happens in the field. So this is where, besides having to understand existing theory, we also have to learn to work tactically to face problems that are beyond our previous expectations.