On Thursday, April 24, 2003, J.C.Wren wrote:
   My favorite
idea is simply to have sealed bids.  That is, you don't know
 the high bid until the auction closes.  Doing it that way prevents
 last-minute psychology from causing bad decisions. 
 Out of curiosity, why is it in my best interest as a seller to prevent
 people from making rash decisions? 
 
As a seller, there are two advantages that I can identify.  First, it
promotes customer satisfaction, which leads to a more profitable long-term
relationship with the customer.  Second, people who make rash decisions are
less likely to pay, and nonpaying bidders are a real pain.  It may be worth
it to reduce the probability of experiencing that pain.
As both a seller and a bidder, eBay is a great tool for discovering the
approximate values of things.  Last-minute auction psychology, IMHO,
artificially inflates these prices (though generally not by much).  A
sealed-bid system, by decreasing the last-minute effect, would make eBay's
market values for things more accurately reflect the market values outside
of eBay.  Thus, eBay would become a better value estimation tool.
As a bidder, it's currently inconvenient. The way eBay works (and I'm not
really a big eBay basher; I have lots of fun with it), if you really want to
be competitive, you have to snipe.  You have to be paying attention when the
auction ends (I wouldn't trust a sniping service IMHO).  That's difficult to
do for a great many people and depends on work, weather, and a virtually
infinite number of other factors.  A sealed-bid system would enable people
to bid -- competitively -- at their convenience and then go on about their
lives.
  It's not my moral or social responsibility to keep
others from making
 stupid decisions. 
I do not have the following view, but some may say that it is unethical to
take advantage of people by exploiting their psychology.
--
Jeffrey Sharp