关于微观经济的计算题...Consider the following information about bread production at Beth's Bakery:Worker Marginal Product 1 5 2 7 3 10 4 11 5 8 6 6 7 4 Beth pays all her workers the same wage and labour is her only variable cost.From this i

关于微观经济的计算题...Consider the following information about bread production at Beth's Bakery:Worker Marginal Product 1 5 2 7 3 10 4 11 5 8 6 6 7 4 Beth pays all her workers the same wage and labour is her only variable cost.From this i
关于微观经济的计算题...
Consider the following information about bread production at Beth's Bakery:
Worker Marginal Product
1 5
2 7
3 10
4 11
5 8
6 6
7 4
Beth pays all her workers the same wage and labour is her only variable cost.From this information we can conclude that Beth's marginal cost
1) declines as output increases from 0 to 11,but increases after that.
2) declines as output increases from 0 to 33,but increases after that.
3) increases as output increases from 0 to 11,but declines after that.
4) continually increases as output rises.
下一道...
Assume a certain firm is producing 1,000 units of output (so Q = 1,000).At Q = 1,000,the firm's marginal cost equals $15 and its average total cost equals $11.The firm sells its output for $12 per unit.
Refer to Scenario 14-2.At Q = 999,the firm's profit amounts to
1) $993.
2) $1,007.
3) $997.
4) $1,003.
thx!
第一道正确答案是3...是declines as output increases from 0 to 33,but increases after that.但是我不明白为什么...
关于第2个 它说 refer to scenario 14-2,所谓的这个scenario 14-2 就是上面的叙述...就是这个:
Scenario 14-2
Assume a certain firm is producing 1,000 units of output (so Q = 1,000).At Q = 1,000,the firm's marginal cost equals $15 and its average total cost equals $11.The firm sells its output for $12 per unit.
Thanks so much for your explainations!but,
Um...still have questions though...
I mean,for the 1st one,why did you add the marginal product together?so you meant that those numbers are the total production?there's formula for that or?
and for the second question,
Why did you do this in this way?just need a bit of explaination...
Thx so much!

关于微观经济的计算题...Consider the following information about bread production at Beth's Bakery:Worker Marginal Product 1 5 2 7 3 10 4 11 5 8 6 6 7 4 Beth pays all her workers the same wage and labour is her only variable cost.From this i
先把numbers of worker is x-axis,plot in total production:
　　X Y
　　1 5
　　2 12
　　3 22
　　4 33
　　5 41
　　6 47
　　7 51
　　就是把第 2 个数字加到前面的得到的数,from the fourth worker and on ,you can observe that there's diminishing rate of return (ex:11到8)所以要选.
　　你的意思是,答案应该是2,.我知道了~因为我刚才是用marginal rate 来看,问题是说output,diminishing return starts from the fourth worker,and thus with each additional output,the marginal cost increases,as you can see from the above table I have provided,the total output of the first four workers is 33,which explains that the marginal cost increases from 33 outputs...
　　第2题是4) 1003:(12-11)*1000-12+15
　　addition:
　　marginal output means for each additional worker there's certain numbers of additional output...so:with additional of one worker to the first worker:(2 workers working,the output would be 5+7=12,and add another worker (now 3 workers are working) 12+10=22...and so on...
　　as you can see,the marginal rate goes down from addition of 5th worker,which indicates diminishing rate of return,meaning producing less with more workers...
　　questions 2:
　　with 1000 unites of output,the revenue is (12-11)*1000 => (price-average cost of one unit)*quantity=> revenue of 1000 units
　　(12-11)*1000-12+15:total revenue of 1000 unites - 12 (the 1000th unit selling price)+ 15 (cost incurred from the production of the 1000th unit) ( b/c we only sold 999 units,so the 1000th unit should not be included in the calculation,and same applies to the production,we didn't produce the 1000th one,so we should add $15 back to the revenue)
　　I hope this will be helpful~