| アイテムタイプ |
デフォルトアイテムタイプ（フル）その２(1) |
| 公開日 |
2017-05-20 |
| タイトル |
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|
タイトル |
A statistical analysis of product prices in online markets |
|
言語 |
en |
| 作成者 |
水野, 貴之
渡辺, 努
| en |
Watanabe, Tsutomu
kakenhi Hitotsubashi University
12613
Canon Institute for Global Studies
|
| ja |
渡辺, 努
|
| ja-Kana |
ワタナベ, ツトム
|
Search repository
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| 寄与者 |
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寄与者タイプ |
Editor |
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姓名 |
日本経済の物価変動ダイナミクスの解明 = Understanding Inflation Dynamics of the Japanese Economy |
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|
言語 |
en |
| アクセス権 |
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|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
Economics |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
econophysics |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
financial markets |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
business and management |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
Brownian motion |
| 主題 |
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|
主題Scheme |
Other |
|
主題 |
Time series analysis |
| 内容記述 |
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内容記述タイプ |
Abstract |
|
内容記述 |
We empirically investigate fluctuations in product prices in online markets by using a tick-by-tick price data collected from a Japanese price comparison site, and find some similarities and differences between product and asset prices. The average price of a product across e-retailers behaves almost like a random walk, although the probability of price increase/decrease is higher conditional on the multiple events of price increase/decrease. This is quite similar to the property reported by previous studies about asset prices. However, we fail to find a long memory property in the volatility of product price changes. Also, we find that the price change distribution for product prices is close to an exponential distribution, rather than a power law distribution. These two findings are in a sharp contrast with the previous results regarding asset prices. We propose an interpretation that these differences may stem from the absence of speculative activities in product markets; namely, e-retailers seldom repeat buy and sell of a product, unlike traders in asset markets. |
|
言語 |
en |
| 出版者 |
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|
出版者 |
Research Center for Price Dynamics, Institute of Economic Research, Hitotsubashi University |
| 日付 |
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|
日付 |
2009-05-15 |
|
日付タイプ |
Issued |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_18gh |
|
資源タイプ |
technical report |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
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|
関連タイプ |
isPartOf |
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|
関連名称 |
Working Paper Series ; No. 40 |
| 関連情報 |
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|
識別子タイプ |
URI |
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|
関連識別子 |
http://www.ier.hit-u.ac.jp/~ifd/ |
| ページ数 |
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|
ページ数 |
5 |
| Sponsorship |
|
|
値 |
日本学術振興会・科学研究費補助金（学術創成研究費） = JSPS Grant-in-Aid for Creative Scientific Research |
IFD_WP40.pdf (110883 bytes)
