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Select ALL the CORRECT statements: Expectations about the future matter only in periods when uncertainty is low. When uncertainty is very high, households and firms do not benefit from forming expectations about the future. According to the Rational Expectations Hypothesis, for wage- and price-setters' inflation expectations to be fulfilled, their expected inflation has to be equal to target inflation. According to the Rational Expectations Hypothesis, inflation does not get built into the system and therefore disinflation is costless. According to the Adaptive Expectations Hypothesis, economic agents (e.g., households, firms) do not update their expectations as response to shocks