1st price auction和2nd price auction能合在一起进行吗？# Economics - 经济
g*e
1 楼
准备资料时间很长，大概寄了一人多高资料过去。由SunLawFirm Alice Sun律师经办。
I140当天批准。十分感激。希望I485不要出什么幺蛾子
I140当天批准。十分感激。希望I485不要出什么幺蛾子
v*r
2 楼
老妈想学英语，没有什么基础，有没有什么多媒体的自学教材推荐？谢谢！
z*r
3 楼
http://ciscolivevirtual.com
是virtual的，呵呵。这里有人去吗？
是virtual的，呵呵。这里有人去吗？
r*g
4 楼
先说好俺不是game theory大牛，不许拍砖。
比如有参加auction的有两个人，一个按照1st price auction来bid，另一个按照2nd
price auction来bid，我的感觉是最后的结果（who is the winner and how much is
the payment）应该等同于两个人都按照1st price或2nd price auciton来bid的情形。
也就是说谁的true valuation高谁赢，payment都是等于2nd highest bidder's true
valuation。如果参加auction的有多人，而且有多个item，结果是否仍然是一样的呢？
这个问题可能没什么现实意义，我在网上大概找了一下居然没有什么文献，这种
auction有没有什么特定的名字？哪里能找到一些结论性的东西？
thx！
比如有参加auction的有两个人，一个按照1st price auction来bid，另一个按照2nd
price auction来bid，我的感觉是最后的结果（who is the winner and how much is
the payment）应该等同于两个人都按照1st price或2nd price auciton来bid的情形。
也就是说谁的true valuation高谁赢，payment都是等于2nd highest bidder's true
valuation。如果参加auction的有多人，而且有多个item，结果是否仍然是一样的呢？
这个问题可能没什么现实意义，我在网上大概找了一下居然没有什么文献，这种
auction有没有什么特定的名字？哪里能找到一些结论性的东西？
thx！
d*u
5 楼
恭喜恭喜！
s*g
6 楼
The free one does not give you any meat, you need $395 to gain access to
real materials.
real materials.
g*h
7 楼
"参加auction的有两个人，一个按照1st price auction来bid，另一个按照2nd
price auction来bid"
How??
is
【在 r*****g 的大作中提到】
: 先说好俺不是game theory大牛，不许拍砖。
: 比如有参加auction的有两个人，一个按照1st price auction来bid，另一个按照2nd
: price auction来bid，我的感觉是最后的结果（who is the winner and how much is
: the payment）应该等同于两个人都按照1st price或2nd price auciton来bid的情形。
: 也就是说谁的true valuation高谁赢，payment都是等于2nd highest bidder's true
: valuation。如果参加auction的有多人，而且有多个item，结果是否仍然是一样的呢？
: 这个问题可能没什么现实意义，我在网上大概找了一下居然没有什么文献，这种
: auction有没有什么特定的名字？哪里能找到一些结论性的东西？
: thx！
price auction来bid"
How??
is
【在 r*****g 的大作中提到】
: 先说好俺不是game theory大牛，不许拍砖。
: 比如有参加auction的有两个人，一个按照1st price auction来bid，另一个按照2nd
: price auction来bid，我的感觉是最后的结果（who is the winner and how much is
: the payment）应该等同于两个人都按照1st price或2nd price auciton来bid的情形。
: 也就是说谁的true valuation高谁赢，payment都是等于2nd highest bidder's true
: valuation。如果参加auction的有多人，而且有多个item，结果是否仍然是一样的呢？
: 这个问题可能没什么现实意义，我在网上大概找了一下居然没有什么文献，这种
: auction有没有什么特定的名字？哪里能找到一些结论性的东西？
: thx！
z*r
8 楼
这个就是玩儿下，真想要那些资料，开完大会了，到处都有了
【在 s*****g 的大作中提到】
: The free one does not give you any meat, you need $395 to gain access to
: real materials.
【在 s*****g 的大作中提到】
: The free one does not give you any meat, you need $395 to gain access to
: real materials.
r*g
9 楼
自己顶
r*g
10 楼
就是说按照1st price auction来bid的那个人expect赢了的话付自己bid的钱，按照2nd
price auction来bid的人expect赢了的话付比自己低的那个人的bid。
Scenario 1, one 1st price bidder (with lower true value), one 2nd price
bidder(with higher true value), 1 item. The 2nd price bidder bids his/her
true value and the 1st price bidder bids as much as he/she can afford trying
to win the item. The 2nd price bidder wins, and pays the second highest bid
, which is the 1st price bidder's true value.
Scenario 2, one 1st price bidder (with higher true value
【在 g****h 的大作中提到】
: "参加auction的有两个人，一个按照1st price auction来bid，另一个按照2nd
: price auction来bid"
: How??
:
: is
price auction来bid的人expect赢了的话付比自己低的那个人的bid。
Scenario 1, one 1st price bidder (with lower true value), one 2nd price
bidder(with higher true value), 1 item. The 2nd price bidder bids his/her
true value and the 1st price bidder bids as much as he/she can afford trying
to win the item. The 2nd price bidder wins, and pays the second highest bid
, which is the 1st price bidder's true value.
Scenario 2, one 1st price bidder (with higher true value
【在 g****h 的大作中提到】
: "参加auction的有两个人，一个按照1st price auction来bid，另一个按照2nd
: price auction来bid"
: How??
:
: is
g*h
11 楼
Good to do some thought experiments, but I got a different answer.
Do not forget: Under the first-price scheme, buyers have an incentive to
hide their true values.
Let me give you an example. We both are interested in bidding a vase. Its
true value to me is 100 and its true value to you is 110.
We both are utility maximizer.
1)Under the first price auction:
I bid $90. In case I win the auction, I pay $90 and get $10 surplus.
You bid $100, expecting to get $10 surplus as well.
So you win and pay
Do not forget: Under the first-price scheme, buyers have an incentive to
hide their true values.
Let me give you an example. We both are interested in bidding a vase. Its
true value to me is 100 and its true value to you is 110.
We both are utility maximizer.
1)Under the first price auction:
I bid $90. In case I win the auction, I pay $90 and get $10 surplus.
You bid $100, expecting to get $10 surplus as well.
So you win and pay
r*g
12 楼
恩，mm解释的很好，多谢。
【在 g****h 的大作中提到】
: Good to do some thought experiments, but I got a different answer.
: Do not forget: Under the first-price scheme, buyers have an incentive to
: hide their true values.
: Let me give you an example. We both are interested in bidding a vase. Its
: true value to me is 100 and its true value to you is 110.
: We both are utility maximizer.
: 1)Under the first price auction:
: I bid $90. In case I win the auction, I pay $90 and get $10 surplus.
: You bid $100, expecting to get $10 surplus as well.
: So you win and pay
【在 g****h 的大作中提到】
: Good to do some thought experiments, but I got a different answer.
: Do not forget: Under the first-price scheme, buyers have an incentive to
: hide their true values.
: Let me give you an example. We both are interested in bidding a vase. Its
: true value to me is 100 and its true value to you is 110.
: We both are utility maximizer.
: 1)Under the first price auction:
: I bid $90. In case I win the auction, I pay $90 and get $10 surplus.
: You bid $100, expecting to get $10 surplus as well.
: So you win and pay
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