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Similar to A Non-Random Walk Revisited: Short- and Long-Term Memory in Asset Prices (20) A Non-Random Walk Revisited: Short- and Long-Term Memory in Asset Prices1. Board of Governors of the Federal Reserve System
International Finance Discussion Papers
Number 956
November 2008
A Non-Random Walk Revisited:
Short- and Long-Term Memory in Asset Prices
by
Paul S. Eitelman
Justin T. Vitanza
NOTE: International Finance Discussion Papers are preliminary materials circulated to stimulate
discussion and critical comment. References in publications to International Finance Discussion
Papers (other than an acknowledgment that the writer has had access to unpublished material)
should be cleared with the author or authors. Recent IFDPs are available on the Web at
www.federalreserve.gov/pubs/ifdp/. This paper can be downloaded without charge from the
Social Science Research Network electronic library at http://www.ssrn.com/
2. A Non-Random Walk Revisited:
Short- and Long-Term Memory in Asset Prices*
Paul S. Eitelman
Justin T. Vitanza*
Abstract
In this paper, we test for short and long memory in asset prices across 44 emerging and industrialized
economies. Using methodology from Lo and MacKinlay (1988) and Lo (1991), we find that markets
with a poor Sharpe ratio are more likely to reject the random walk than better performing markets. We
also make a methodological contribution. Contrary to the Baillie (1996) criticism, our long memory
analysis suggests that the choice of a truncation lag is not as important as one might initially believe.
Tests that reject the null hypothesis tend to do so across any reasonable choice in lag.
Keywords: random walk, long-range dependence, equities, commodities, exchange rates
JEL Codes: E30, G14
*
Author notes: We appreciate the comments of Shaghil Ahmed, Brett Berger, Dale Henderson, Erik
Hjalmarsson, Andrea Raffo, and Robert Vigfusson. Eitelman and Vitanza are research assistants in the
Division of International Finance at the Federal Reserve Board. Corresponding Author: Paul Eitelman,
Mail Stop 24, Federal Reserve Board, Washington, DC 20551 USA. Email: paul.s.eitelman@frb.gov.
The views expressed in this paper are solely the responsibility of the authors and should not be interpreted
as reflecting the views of the Board of Governors of the Federal Reserve System or of any other person
associated with the Federal Reserve System.
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Table 2.3.1: Percent of GARCH(1,1) Processes Rejected
Confidence Methodology q
Level ( ) 2 4 8 16 32 64
Homoscedastic 12.41 12.35 11.57 11.08 9.85 8.12
= 95%
Heteroscedastic 5.04 5.28 5.30 4.71 4.88 4.88
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= 99%
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124. Equity Indices Foreign Exchange
Country * V( *) * V( *) Commodity * V( *)
Argentina 4 1.50 2 1.91* Crude Oil 0 0.95
Brazil 5 1.31 3 1.89* Gasoline 1 1.06
Chile 14 1.75 3 1.88* Natural Gas 0 0.92
Colombia 7 1.62 0 1.91* Heating Oil 3 1.02
Mexico 7 1.38 0 1.00 Copper 4 1.28
Peru 11 2.31** 2 1.41 Aluminum 2 1.26
Venezuela 8 1.25 --- --- Lead 4 1.26
China 2 1.38 --- --- Nickel 1 1.30
Hong Kong 4 1.37 --- --- Tin 4 1.54
Indonesia 12 1.66 6 1.46 Zinc 0 1.47
India 6 1.45 9 2.12** Gold 3 1.03
South Korea 6 1.88* 7 1.95* Platinum 2 1.39
Malaysia 8 1.50 1 1.35 Silver 2 1.00
Philippines 9 1.37 5 1.67 Cotton 2 1.58
Russia 7 1.66 8 2.00* Rubber 13 1.21
Singapore 9 1.48 5 1.34 Corn 0 1.65
Taiwan 5 1.50 --- --- Wheat 5 1.19
Thailand 7 1.79 4 1.57 Soybeans 1 2.08*
Israel 1 0.98 2 2.05* Cattle 2 0.72**
Kuwait 1 1.85 --- --- Cocoa 2 0.90
Nigeria 15 1.21 12 1.23 Coffee 0 1.25
Saudi Arabia 2 2.20** --- --- Sugar 4 1.57
South Africa 4 1.43 1 2.01*
Turkey 4 1.47 5 1.36
UAE 2 2.16** --- ---
Australia 7 1.36 3 1.30
Belgium 8 1.85 --- ---
Canada 9 0.99 2 1.64
Czech Republic 5 1.86 1 1.71
Denmark 3 2.02* --- ---
European Union --- --- 0 1.51
France 2 1.54 --- ---
Germany 1 1.58 --- ---
Hungary 5 1.39 --- ---
Italy 11 1.61 --- ---
Japan 7 1.95* 3 1.23
Netherlands 0 1.40 --- ---
Norway 1 2.12** 0 1.43
New Zealand 5 1.00 2 1.45
Poland 6 1.32 3 1.79
Sweden 1 1.93* 0 1.48
Spain 2 1.63 --- ---
Switzerland 2 1.48 2 1.38
UK 2 1.18 4 1.44
US 5 1.57 --- ---
* and ** denote significance at the 95 and 99 percent confidence levels, respectively
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Sample Standard Excess Jarque-Bera
Size Mean Deviation Skewness Kurtosis Statistic
Country
Argentina 1940 0.051 2.18 0.17 5.41 2377.82**
Brazil 2879 0.120 2.01 0.61 16.31 32072.80**
Chile 4358 0.069 0.78 0.16 3.82 2666.04**
Colombia 1528 0.167 1.51 -0.06 14.38 13165.80**
Mexico 4644 0.106 1.57 -0.09 5.68 6253.92**
Peru 3866 0.127 1.46 0.22 6.70 7259.93**
Venezuela 3224 0.133 1.82 -0.13 13.38 24045.15**
China 3121 0.060 1.84 0.55 21.33 59297.77**
Hong Kong 9042 0.057 1.85 -0.37 12.39 58083.83**
Indonesia 5795 0.059 1.57 4.00 97.61 2316205.03**
India 5639 0.051 1.59 -0.06 4.61 5005.44**
Korea 6620 0.043 1.62 -0.16 4.59 5847.42**
Malaysia 7316 0.036 1.40 -0.61 32.44 321301.57**
Philippines 5079 0.027 1.67 0.10 9.49 19048.88**
Russia 2995 0.078 2.70 -0.42 6.50 5357.90**
Singapore 7951 0.036 1.21 -1.32 34.04 386172.07**
Taiwan 8165 0.046 1.76 -0.23 3.77 4903.65**
Thailand 4803 0.029 1.70 0.02 6.23 7773.66**
Israel 2301 0.063 1.74 -0.17 3.70 1325.61**
Kuwait 736 0.228 1.27 -0.50 5.97 1122.54**
Nigeria 2186 0.081 0.86 -0.98 15.52 22303.69**
Saudi Arabia 2025 0.063 1.62 -0.94 15.32 20113.67**
South Africa 3054 0.050 1.20 -0.74 7.86 8144.32**
Turkey 4403 0.163 2.93 0.02 3.48 2220.95**
UAE 627 0.252 2.31 0.14 3.94 408.59**
Australia 6978 0.036 0.95 -4.53 127.01 4714368.66**
Belgium 4679 0.030 0.89 0.05 7.11 9847.77**
Canada 7602 0.035 0.85 -0.99 13.53 59242.83**
Czech Republic 3218 0.014 1.21 -0.22 3.09 1307.13**
Denmark 2975 0.043 0.94 -0.51 2.55 933.22**
France 4234 0.030 1.14 -0.21 3.45 2130.20**
Germany 4965 0.038 1.30 -0.56 6.98 10339.31**
Hungary 4163 0.074 1.60 -0.79 13.69 32927.86**
Italy 8545 0.027 1.26 -0.46 5.22 10001.44**
Japan 9027 0.017 1.04 -0.52 11.62 51222.52**
Netherlands 6275 0.035 1.28 -0.32 8.22 17771.00**
Norway 2981 0.037 1.19 -0.53 3.38 1560.75**
New Zealand 3902 0.041 0.80 0.00 8.70 12299.44**
Poland 3348 0.053 1.90 -0.17 7.36 7572.63**
Sweden 1995 -0.004 1.41 -0.11 2.42 490.24**
Spain 3641 0.045 1.17 -0.36 3.22 1649.38**
Switzerland 4824 0.029 1.13 -0.52 7.03 10142.03**
UK 5864 0.033 0.96 -0.81 11.71 34140.18**
US 9317 0.040 0.99 -1.43 34.83 474220.14**
* and ** represent significance at the 95 and 99 percent confidence levels, respectively
290. ,,quot;*!4 +))+!0quot;/
Sample Standard Excess Jarque-Bera
Size Mean Deviation Skewness Kurtosis Statistic
Commodity
Crude Oil 5630 0.016 2.45 -1.22 18.93 85435.26**
Gasoline 1086 0.090 2.96 -0.15 7.08 2271.70**
Natural Gas 3405 0.080 4.89 0.70 24.74 87144.91**
Heating Oil 1086 0.114 2.33 0.26 1.06 63.64**
Copper 1086 0.109 1.99 -0.50 3.10 480.71**
Aluminum 1114 0.074 1.45 -0.25 2.11 219.03**
Lead 1087 0.109 2.03 -0.37 5.89 1597.30**
Nickel 1114 0.117 2.65 -0.35 3.32 535.69**
Tin 1097 0.111 1.69 -0.40 3.79 685.51**
Zinc 1097 0.079 2.00 -0.50 2.60 356.57**
Gold 1166 0.078 1.11 -0.57 2.58 385.74**
Platinum 1097 0.086 1.25 -0.02 5.48 1372.32**
Silver 1164 0.104 2.04 -1.41 9.79 5032.06**
Cotton 1087 0.017 1.73 0.29 11.91 6433.98**
Rubber 1548 0.088 0.87 -0.28 2.48 416.12**
Corn 1537 0.059 1.76 0.15 1.23 103.49**
Wheat 1092 0.088 2.28 -0.49 64.15 187269.43**
Soybeans 1090 0.057 1.75 -0.82 4.35 983.71**
Cattle 1108 0.022 1.43 0.24 3.64 622.91**
Cocoa 1086 0.044 1.73 -0.24 3.39 530.14**
Coffee 1085 0.084 1.98 0.30 4.31 857.82**
Sugar 1086 0.071 1.91 -0.13 2.27 236.46**
* and ** represent significance at the 95 and 99 percent confidence levels, respectively
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Sample Standard Excess Jarque-Bera
Size Mean Deviation Skewness Kurtosis Statistic
Country
1544 0.030 1.15 3.18 102.82 682741.37**
Argentina
2218 -0.004 1.07 0.54 13.98 18173.92**
Brazil
2175 -0.007 0.54 0.07 2.14 414.97**
Chile
2163 -0.003 0.53 0.06 6.49 3803.08**
Colombia
2808 0.010 0.51 0.87 8.19 8195.30**
Mexico
543 0.049 0.30 -0.01 8.73 1726.16**
Peru
2695 0.036 1.85 1.71 36.17 148223.94**
Indonesia
8477 0.017 0.47 4.71 129.04 5912848.31**
India
6427 0.003 0.58 3.45 158.07 6704119.60**
Korea
638 -0.027 0.25 -0.05 3.24 279.5911**
Malaysia
2561 0.001 0.56 -7.75 218.71 5130106.64**
Philippines
2355 0.002 0.37 1.98 75.65 563129.97**
Russia
6571 -0.008 0.33 -0.80 15.94 70261.65**
Singapore
2587 -0.002 0.73 -0.51 15.62 26420.83**
Thailand
3819 0.010 0.43 1.47 25.24 102758.53**
Israel
2263 0.011 1.47 0.27 16.27 24986.60**
Nigeria
8933 0.028 0.83 1.93 53.89 1086480.52**
South Africa
1832 0.018 1.24 1.43 23.55 42949.21**
Turkey
8015 0.002 0.62 4.62 128.27 5523084.78**
Australia
8977 -0.001 0.32 -0.01 3.82 5445.18**
Canada
3122 -0.016 0.69 0.53 8.09 8663.15**
Czech Republic
2226 -0.013 0.58 -0.02 0.85 67.46**
European Union
8963 -0.013 0.62 -0.41 5.94 13425.10**
Japan
8967 -0.004 0.59 0.36 7.98 24018.13**
Norway
8949 0.002 0.67 2.72 66.20 1644907.54**
New Zealand
3049 -0.006 0.64 0.28 2.82 1049.42**
Poland
8967 -0.002 0.59 1.02 19.68 146297.76**
Sweden
8969 -0.016 0.71 0.01 3.77 5317.29**
Switzerland
8969 0.001 0.57 0.14 4.20 6608.25**
UK
* and ** represent significance at the 95 and 99 percent confidence levels, respectively