Measuring Asymmetric Price and Volatility Spillover in the South African Broiler Market
AbstractThis study investigated asymmetric price and volatility spillover in the broiler value chain. The data used for the study includes farm and retail broiler monthly prices dated from January 2000 to August 2008. The threshold autoregressive (TAR) and momentum threshold autoregressive (M-TAR) models were used to investigate asymmetry in farm-retail market prices, whereas the exponential generalised autoregressive conditional heteroskedasticity (EGARCH) model was used to measure price volatility and the volatility spillover effect between retail and farm prices. Price asymmetry was found between farm and retail prices with retail prices responding more rapidly (with a lag) to negative than positive changes in farm price. The results indicate that within one month, the retail prices adjust so as to eliminate approximate 2.8 % of a unit-negative change in the deviation from the equilibrium relationship caused by changes in producer prices. This implies that the retailers must increase their marketing margin by 2.8% in order to response completely to a unit-negative change in farm prices. The results from the volatility model show that the magnitude of volatility in the retail and farm prices for the periods 2000M1 to 2008M8 is 1.8% and 2.8%, respectively, with significant asymmetric volatility spillover from the farm to retail level of the value chain. This implies that the response to positive shock at any production and marketing stage differs from the response to a negative shock.
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Bibliographic InfoPaper provided by African Association of Agricultural Economists (AAAE) & Agricultural Economics Association of South Africa (AEASA) in its series 2010 AAAE Third Conference/AEASA 48th Conference, September 19-23, 2010, Cape Town, South Africa with number 96434.
Date of creation: 2010
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- Rezitis, Anthony N., 2003. "Volatility Spillover Effects in Greek Consumer Meat Prices," Agricultural Economics Review, Greek Association of Agricultural Economists, vol. 4(1), January.
- Moledina, Amyaz A. & Roe, Terry L. & Shane, Mathew, 2004. "Measuring Commodity Price Volatility And The Welfare Consequences Of Eliminating Volatility," 2004 Annual meeting, August 1-4, Denver, CO 19963, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
- Michela Cutts & Johann Kirsten, 2006. "Asymmetric Price Transmission And Market Concentration: An Investigation Into Four South African Agro-Food Industries," South African Journal of Economics, Economic Society of South Africa, vol. 74(2), pages 323-333, 06.
- Goodwin, Barry K. & Piggott, Nicholas E., 1999.
"Spatial Market Integration In The Presence Of Threshold Effects,"
1999 Annual meeting, August 8-11, Nashville, TN
21489, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).
- Barry K. Goodwin & Nicholas E. Piggott, 2001. "Spatial Market Integration in the Presence of Threshold Effects," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 83(2), pages 302-317.
- Abdulai, Awudu, 2000. "Spatial price transmission and asymmetry in the Ghanaian maize market," Journal of Development Economics, Elsevier, vol. 63(2), pages 327-349, December.
- Buguk, Cumhur & Hudson, Darren & Hanson, Terrill R., 2003. "Price Volatility Spillover in Agricultural Markets: An Examination of U.S. Catfish Markets," Journal of Agricultural and Resource Economics, Western Agricultural Economics Association, vol. 28(01), April.
- Enders, Walter & Granger, C. W. J., 1998.
"Unit Root Tests and Asymmetric Adjustment with an Example Using the Term Structure of Interest Rates,"
Staff General Research Papers
1388, Iowa State University, Department of Economics.
- Enders, Walter & Granger, Clive W J, 1998. "Unit-Root Tests and Asymmetric Adjustment with an Example Using the Term Structure of Interest Rates," Journal of Business & Economic Statistics, American Statistical Association, vol. 16(3), pages 304-11, July.
- Tom Doan, . "RATS programs to replicate Enders/Granger JBES(1998)on threshold unit roots," Statistical Software Components RTZ00054, Boston College Department of Economics.
- Enders, Walter & Siklos, Pierre L, 2001.
"Cointegration and Threshold Adjustment,"
Journal of Business & Economic Statistics,
American Statistical Association, vol. 19(2), pages 166-76, April.
- Tom Doan, . "ENDERSIKLOS: RATS procedure to perform Enders-Siklos test for cointegration with threshold effect," Statistical Software Components RTS00064, Boston College Department of Economics.
- Tom Doan, . "RATS programs to replicate Enders-Siklos(2001) JBES paper on threshold cointegration," Statistical Software Components RTZ00053, Boston College Department of Economics.
- Barry K. Goodwin & Matthew T. Holt, 1999. "Price Transmission and Asymmetric Adjustment in the U.S. Beef Sector," American Journal of Agricultural Economics, Agricultural and Applied Economics Association, vol. 81(3), pages 630-637.
- Dickey, David A & Fuller, Wayne A, 1981. "Likelihood Ratio Statistics for Autoregressive Time Series with a Unit Root," Econometrica, Econometric Society, vol. 49(4), pages 1057-72, June.
- Denis Kwiatkowski & Peter C.B. Phillips & Peter Schmidt, 1991.
"Testing the Null Hypothesis of Stationarity Against the Alternative of a Unit Root: How Sure Are We That Economic Time Series Have a Unit Root?,"
Cowles Foundation Discussion Papers
979, Cowles Foundation for Research in Economics, Yale University.
- Kwiatkowski, Denis & Phillips, Peter C. B. & Schmidt, Peter & Shin, Yongcheol, 1992. "Testing the null hypothesis of stationarity against the alternative of a unit root : How sure are we that economic time series have a unit root?," Journal of Econometrics, Elsevier, vol. 54(1-3), pages 159-178.
- Tom Doan, . "KPSS: RATS procedure to perform KPSS (Kwiatowski, Phillips, Schmidt, and Shin) stationarity test," Statistical Software Components RTS00100, Boston College Department of Economics.
- Kwiatkowski, D. & Phillips, P.C.B. & Schmidt, P., 1990. "Testing the Null Hypothesis of Stationarity Against the Alternative of Unit Root : How Sure are we that Economic Time Series have a Unit Root?," Papers 8905, Michigan State - Econometrics and Economic Theory.
- Anthony Rezitis, 2003. "Mean and volatility spillover effects in Greek producer-consumer meat prices," Applied Economics Letters, Taylor & Francis Journals, vol. 10(6), pages 381-384.
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