| Which team do you support? online sildenaflex Economists invent mathematical models of the economy all the time. How can they possibly learn anything about the economy this way? If your model says something about the economy that you didn’t know before, you don’t know if the economy actually behaves that way or if your model is wrong. So you have to look at the economy and see if it does what the model predicts. Wouldn’t you save time by skipping the model and just looking at the economy? For example, I have forgotten what Okun’s Law says, but I recall that it is empirical rather than theory-based. Why isn’t all economics done this way?
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