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Questions tagged [equilibrium-selection]

The equilibrium selection tag applies to question which deal with the issue of selecting one or more out of multiple equilibria based on some criterion.

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Equation: If the equilibrium level of GDP is $21,500, what is the marginal propensity to consume?

Equations for C, I, G, and NX are given below. If the equilibrium level of GDP is $21,500, what is the marginal propensity to consume? C = 1,500 + (MPC)Y I = 1,000 G = 2,000 NX = -200
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What is time inconsistency in monetary policy?

I am reading through a bit of policy literature and see authors referring often to the problem of time inconsistency when setting monetary policy. Can anyone explain what is time inconsistency? An ...
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How does Brouwer's fixed point theorem relate to Walrasian equilibrium?

I am trying to understand Walrasian equilibrium and its connection to fixed points, especially how we can apply Brouwer’s fixed point theorem to the notion of Walrasian equilibrium. I understand the ...
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Refinements of Walrasian equilibrium

In Walrasian equilibrium there is a market clearing price, that is $$ D(p) = S(p) $$ or the supply is worthless, so you can have $$ D(p) < S(p) \mbox{ if } p = 0. $$ This can be summarized as $$ p \...
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Divinity for Dummies

I understood the general idea of divinity: that it helps to rule out "unreasonable" equilibria. However, can someone explain it in more details with simple examples so that a senior undergrad student ...