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3 votes
1 answer
1k views

Deriving intertemporal budget constraint from flow constraint

I am trying to learn how to solve difference equations in order to derive intertemporal budget constraints. Consider the government's flow budget constraint: $$\frac{B_{t}-B_{t-1}}{p_{t}} + \frac{M_{ …
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2 votes
1 answer
109 views

Difference equation in OLG framework

This question is also regarding Aiyagari and Gertler (1985). We have the governments flow budget contraint: $\frac{B_{t-1}}{p_{t}} + \bar{g}w = \tau_{y}(t)+\tau_{o}(t) + \frac{M_{t}-M_{t-1}}{p_{t}} + …
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  • 661
3 votes

Solving Leeper (1991) model

You have the government's flow budget constraint (re-written in real terms): $b_{t} + m_{t} + \tau_{t} = g + \frac{m_{t-1}}{\pi_{t}} + R_{t-1}\frac{b_{t-1}}{\pi_{t}}$ (1) Now all you need to do is sub …
user11767's user avatar
  • 661
4 votes
2 answers
334 views

Solving rational expectations model - Sims form

I am trying to solve my first ratex model and make some impulse response functions using Dynare. I am following Leeper (1991). This is what I have done so far: The utility function is $\log(c_{t})+\l …
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1 vote

Solving rational expectations model - Sims form

I think I have managed to solve it. However, not the way I was initially hoping. I simplified the stacked matrices using the given conditions and some assumptions. Here is my solution: Eq. (3) I writ …
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