1. Consider an economy with L > 1 commodities. Show generally that if Walras' law holds, there is at least one normal good.

Microeconomic Theory
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ISBN:9781337517942
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Chapter6: Demand Relationships Among Goods
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1. Consider an economy with L > 1 commodities. Show generally that if Walras' law holds,
there is at least one normal good.
Transcribed Image Text:1. Consider an economy with L > 1 commodities. Show generally that if Walras' law holds, there is at least one normal good.
Expert Solution
Step 1

According to Walras' law,

p1 z1 (p1 , p2 ) + p2 z2 (p1 , p2 ) = 0.

 

In other words, the value of aggregate surplus demand is zero. It indicates that all prices, not just equilibrium prices, are zero.

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