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A good introductory book with a lot of data and statistics provided is: "Macroeconomics: Understanding the Global Economy" by David Miles and Andrew Scott. You can find the link to the book here: Macroeconomics - Miles/Scott It uses a lot of real world examples to relate economic concepts with real data and explain observed economic phenomena. If you are ...


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this is related to the concept of Jensen inequality. basically, $\frac{f(x-|\delta|)+f(x+|\delta|)}{2}\ne f(x)$, for convex functions it's $>f(x)$, and for concave ones $<f(x)$. risk averse guys have concave utilities, that's the relation you need to look at



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