eBay statystyki

[PolandMET.com]

Witam.
Jeden gosc wpadl na swietny pomysl. Zaczal zbierac statystyki eBaya. Super sprawa. Oto
jego post
A moje pytanie jest takie. Ma ktos pojecie jak to mozna robic ? Pewnie trzeba napisac
specjalny program do tego.

-----[ MARCIN CIMAŁA ]-----[ I.M.C.A.#3667 ]-----
http://www.Meteoryt.net             marcin w meteoryt.net
http://www.PolandMET.com       marcin w polandmet.com
http://www.Gao-Guenie.com      GSM +48(607)535 195
--------[ Member of: Polish Meteoritical Society ]--------


Listees,

On the dealer/collector spectrum, I'm at the collector end.
I haven't yet sold any meteorites (but I do need to thin
out my collection a bit).  Anyway, I am interested in the
meteorite market dynamics.  It's fun.

Targeting Ebay, I exercised some software tools I have.  I
looked at completed "Meteorites, Tektites" category completed
sales from 2003-10-10 to 2003-10-25 (the data that Ebay
keeps easily available).  Here are some interesting stats:

[CAVEAT: I haven't thoroughly validated these results.  Please
consider them preliminary.]

Items ended: 2036
Items sold: 1035
Number of unique sellers: 169
Number of unique winners: 413
Number of unique bidders: 815
Total sold: $57,951.60
Most expensive item sold: $6,736.00

More data below.  I plan to start collecting data over time to
see trends.  If you're interested in the result, let me know.
I'll post if there's sufficient interest.  I'm mostly interested
in the "demand side".  Are more people bidding on meteorites?
What else are they bidding on?  Etc.

Of course, I'm only looking at EBay -- as opposed to the large
number of direct deals that I can't see.

Some folks might gripe that I'm invading privacy.  Yes?  If
so, lemme know.  I can obfuscate identities.  But folks can
still figure out the identities from the EBay data.

Please remember the caveat above, and send my any comments
or questions.

--Jamie Stephens

Top 20 sellers making the most money:

seller                       | # trans |  usd
-------------------------------+-------+-------
  cometshop                     |    47 | 10634
  finmet                        |    70 |  7436
  meteoritehunter%40comcast.net |    80 |  4584
  meteoritemarina               |    17 |  3619
  a.chondrite                   |     6 |  2145
  mr-meteorite                  |     6 |  2132
  flattoprocks                  |    30 |  1956
  meteoritelab                  |   108 |  1937
  katy2kary                     |    35 |  1710
  meteoritehunters              |    47 |  1374
  17jack-anthony                |    10 |  1141
  meteoriten                    |     8 |  1044
  illinoismeteorites            |    12 |  1025
  paolo2000                     |     7 |  1018
  3281958                       |     2 |  1005
  meteoriteusa.com              |    22 |   940
  meteorflash                   |    79 |   808
  svassiliev                    |    18 |   736
  meteoritesandmore             |    63 |   628
  litig8nshark                  |     6 |   516
(20 rows)

Top 20 bidders spending the most money:

bidder               | usd  | wins
---------------------+------+------
  nickelironmonkey    | 6787 |    2
  dbgbogey            | 2065 |    2
  cat_berlin          | 1848 |    3
  peterutas%40aol.com | 1630 |    1
  aggiemwd            | 1525 |    1
  pangeogem           | 1447 |    3
  meteorpassion       | 1032 |   16
  meteoritoeg         | 1009 |   21
  pat11260            |  978 |    7
  tdaulton            |  961 |    2
  pema9               |  824 |   11
  17jack-anthony      |  817 |   10
  starsandrocks       |  795 |    4
  sandro1921          |  770 |    1
  alwaysdreaming.com  |  760 |    1
  3281958             |  732 |    6
  illinoismeteorites  |  632 |   14
  centrosaurusred     |  585 |    1
  wols1               |  580 |    2
  newforwu            |  547 |    9
(20 rows)

Top 20 EBay "traders", those buying and selling on EBay:

seller                |net usd| wins | sells
----------------------+-------+------+-------
  meteoritesandmore    |   593 |    3 |    63
  docdavev45%40aol.com |   429 |    1 |     1
  illinoismeteorites   |   393 |   14 |    12
  17jack-anthony       |   324 |   10 |    10
  3281958              |   273 |    6 |     2
  jacinth2             |   248 |    2 |    14
  phenomenologist      |    22 |    3 |     4
  birago123456         |     9 |    2 |     3
  tigeroakantiques     |     0 |    2 |     2
  mi-meteorites        |   -51 |    2 |     3
  jnbran               |   -52 |    1 |     6
  driveahumlv          |   -60 |    2 |     2
  pardelmops           |  -449 |    3 |     1
  meteor4911           |  -469 |    1 |     3
  nickelironmonkey     | -6738 |    2 |     1
(15 rows)