急求一道经济题!

问题描述:

急求一道经济题!
1.SweatersInc.sells sweaters in the US and in Canada.The production of sweaters is describedbelow.All firms are in the US unlessnoted.
Yarns Inc.buys wool from the Haslett Sheep Farm for $ 1,000
Yarns Inc.spins the wool into yarn.
Knitters Co buys yarn from Yarns Inc.for $ 1,500
Knitters Co knits 400 sweaters
Sweaters inc buys 400 sweaters from Knitters Co for $ 6,000
Sweaters inc buy 400 boxes from The Box co.of Costa Rica $ 1,200
Sweaters Inc.markets and sells the 400 sweaters
US buyers buy 300 sweaters for $40 each $12,000
Canadian buyers buy 100 sweaters for $40 each $ 4,000
How muchdoes the production of sweaters sold by Sweaters Inc.add to the U.S.GDP?

GDP=12000+4000=16000.1)gdp=(1000-0)Yarns inc+(1500-1000)Knitters+(6000-1500)Sweaters inc,sweaters +(1200-0)Sweaters inc,boxes+(12000+4000-7200)=16000---production2)gdp=12000consume+4000export=16000--...谢谢啊。不过我刚才交作业时问教授说是16000减去1200。因为问的“how much....add to the U.S. GDP",而那box不是在美国生产的,所以要减去。所以最后是14800。晕,我看见All firms are in the US unlessnoted.理解全部都应在美国。