Notice: On March 31, it was **announced** that Statalist is moving from an email list to a **forum**. The old list will shut down on April 23, and its replacement, **statalist.org** is already up and running.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

From |
C Engelbrecht <cngelbrecht@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: A question about binary outcomes |

Date |
Wed, 29 Sep 2010 08:41:47 -0700 |

Thank you Austin, for your reply. However I'm not sure clogit or asclogit is appropriate here, because each auction has different set of bidders, so the alternatives are changing. I checked out clogit and asclogit, and it seems that you need a pre-specified set of alternatives, such as presidential candidates, or travel modes. For instance, (this is a reverse auction, only one winning seller in each auction) Auctionid, buyerid, sellerIsChosen(Y),sellerid, sellercharacteristics 1,1,1,1,..., 1,1,0,2,..., 1,1,0,3,..., 1,1,0,4,..., 2,1,1,5,..., 2,1,0,6,..., 2,1,0,3,..., 3,2,1,4,..., 3,2,0,2,...; 3,2,0,6,..., 3,2,0,9,...., 3,2,0,12,..., 3,2,0,20,..., Sorry I wasn't clearer in my initial post and thank you for any suggestions you can provide. Thank you! On Tue, Sep 28, 2010 at 9:44 PM, Austin Nichols <austinnichols@gmail.com> wrote: > C Engelbrecht <cngelbrecht@gmail.com>: > See help clogit > and help asclogit > for starters. > > On Wed, Sep 29, 2010 at 12:07 AM, C Engelbrecht <cngelbrecht@gmail.com> wrote: >> I'm not sure if Probit / Logit is the appropriate model here, and I >> hope someone can give me some suggestions. >> >> Suppose we have a competitive auction process. A, B, C,... F all place >> bids in an auction hosted by Z. Z can only pick one. Now I want to >> study what drives that choice. Currently I am modeling it as a binary >> choice, i.e. for each bid (A, ..., F) the outcome is either winning or >> not winning. But this seems to disregard the fact that only one of >> them can be winning. Is this an unnecessary concern? If not, how would >> you suggest addressing it? >> >> Many thanks, >> >> Charlie > * > * For searches and help try: > * http://www.stata.com/help.cgi?search > * http://www.stata.com/support/statalist/faq > * http://www.ats.ucla.edu/stat/stata/ > * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: A question about binary outcomes***From:*C Engelbrecht <cngelbrecht@gmail.com>

**Re: st: A question about binary outcomes***From:*Austin Nichols <austinnichols@gmail.com>

- Prev by Date:
**Re: st: partial label list** - Next by Date:
**Re: st: Random seeder** - Previous by thread:
**Re: st: A question about binary outcomes** - Next by thread:
**st: Do-file editor window hidden** - Index(es):