Presentation 2018-11-22
Has the arrowhead market achieved the efficient market ?
Mieko Tanaka-Yamawaki, Masanori Yamanaka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We are trying to reveal the nature of price fluctuation of the 2nd stage arrowhead market, by using the whole transaction data in the period of 2012 to 2017. Hoping to find a new statistical feature in the ultra-fast transaction achieved in the latest stage of arrowhead market, we attempt to determine the statistical distribution of the price fluctuation. We reported our previous result at the CCS meeting held in Kyoto in June 2018, in which we showed that the 15 months’ data of a single stock (8306) in the period of 2015.10~2016.12 exhibits the feature of the Le ?vy stable distribution of index α=1.4~2.0. Since then, we have worked on the same line of thought by increasing the data size to 27 months of the period 2015.10~2017.12, for 4 different stocks (8306,8316,8411,7203), in order to narrow down this range of α. The result excluded the possibility of α=1.4 for all the four stocks, and the range of the index has been successfully narrowed down to α=1.6~2.0. Moreover, the most active stock 8306 clearly shows the superiority of Gaussian distribution (α=2.0) compared to the other stable distributions (α=1.6-1.9). Based on these observations, we conclude that the current stage of the arrowhead market seems to have realized the market efficiency. However, further tasks remain to examine possible dependence of those results on the time scale Δt, the data length, the time when the data taken, stock code, or industry classification, etc.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Arrowhead Market / Efficient Market / Price Fluctuation / Le ?vy's Stable Distribution / Statistical Distribution Function
Paper # CCS2018-38
Date of Issue 2018-11-15 (CCS)

Conference Information
Committee CCS
Conference Date 2018/11/22(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kobe Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Interaction and Communication, etc.
Chair Mikio Hasegawa(Tokyo Univ. of Science)
Vice Chair Makoto Naruse(NICT) / Shigeki Shiokawa(Kanagawa Inst. of Tech.)
Secretary Makoto Naruse(Tokyo City Univ.) / Shigeki Shiokawa(Hiroshima City Univ.)
Assistant Yusuke Kawakita(Kanagawa Inst. of Tech.) / Hiroyasu Ando(Tsukuba Univ.) / Takashi Matsubara(Kobe Univ.) / Ryo Takahashi(AUT)

Paper Information
Registration To Technical Committee on Complex Communication Sciences
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Has the arrowhead market achieved the efficient market ?
Sub Title (in English)
Keyword(1) Arrowhead Market
Keyword(2) Efficient Market
Keyword(3) Price Fluctuation
Keyword(4) Le ?vy's Stable Distribution
Keyword(5) Statistical Distribution Function
1st Author's Name Mieko Tanaka-Yamawaki
1st Author's Affiliation Meiji University(Meiji Univ.)
2nd Author's Name Masanori Yamanaka
2nd Author's Affiliation Nihon University(Nihon Univ.)
Date 2018-11-22
Paper # CCS2018-38
Volume (vol) vol.118
Number (no) CCS-316
Page pp.pp.29-32(CCS),
#Pages 4
Date of Issue 2018-11-15 (CCS)