Question

Andy purchases only two​ goods, apples​ (a) and kumquats​ (k). He has an income of $40...

Andy purchases only two​ goods, apples​ (a) and kumquats​ (k). He has an income of $40 and can buy apples at $4 per pound and kumquats at $2 per pound.

the utility function is U(a,k)=5a+3k

What bundle of apples and kumquats should andy buy to maximize his utility?

_ lbs of apples

_ lbs of kumquats

0 0
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Answer #1

U = 5a+3k

This is the perfect substitute utility function.

If he spend $4 on apples , then he gets 1 unit of apple and his utility will increase by 5 units.

If he spends $4 on kumquats, then he gets 2 units of apples and his utility will increase by 6 units.

Since he is getting higher utility by spending the same amount on kumquats so he should buy only kumquats and 0 units of apples.

So, his utility will be maximized if he buys

0 lbs of apples

20 lbs of kumquats (40/2)

If you have any doubt feel free to ask.

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