Co-integration and causality analysis of castor markets in Telangana state
CO-INTEGRATION AND CAUSALITY ANALYSIS OF CASTOR MARKETS IN TELANGANA STATE
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Authors
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R VIJAYA KUMARI
College of Agriculture, Professor Jayashankar Telangana State Agril. University, Hyderabad-500 030, Telangana
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RAMAKRISHNA GUNDU
College of Agriculture, Professor Jayashankar Telangana State Agril. University, Hyderabad-500 030, Telangana
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VENKATESH PANASA
College of Agriculture, Professor Jayashankar Telangana State Agril. University, Hyderabad-500 030, Telangana
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SREENIVAS AKULA
College of Agriculture, Professor Jayashankar Telangana State Agril. University, Hyderabad-500 030, Telangana
Keywords:
Castor, Cointegration, Granger Causality, Market Integration, VECMAbstract
This study tested long-run spatial market integration between price pairs of castor in five major markets viz., Badepalli, Devarakadra, Gadwal, Nagarkurnool and Narayanpet of Telangana state by adopting econometric tools like Johansen's multivariate co integration approach, Augmented Dickey-Fuller (ADF), Granger causality test, and Vector Error Correction Model (VECM). The study confirmed the presence of co integration, implying the five years price association among the markets. To get the additional evidence as to whether and in which direction price transmission is occurring between the market pairs, Granger causality test was used, which confirmed Devarakadra to be the price-determining market. Devarakadra was found comparatively more efficient as it showed most unidirectional causal relations with other markets. The results showed that Devarakadra market influenced the prices in the other three major markets i.e., Badepalli, Gadwal and Narayanpet.
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References
Afolami C A 2001. Market integration and inter-temporal pricing efficiency for cowpeas in Nigeria. ASSET - Series A: Agriculture & Environment, 1(2): 171.
Awal M A, Sabur S A, Mia M I A 2009. Spatial price integration and pricing efficiency of export markets level: a case of Bangladeshi exportable fresh vegetables markets. Bangladesh Journal of Agricultural Economics, 22(1): 1-16. Bessler A D and Brandt A J 1982. Causality tests in livestock markets. American Journal of Agricultural Economics, 64(1):140-144.
Campiche J L, Bryant H L, Richardson J W and Outlaw J L 2007. Examining the evolving correspondence between petroleum prices and agricultural commodity prices. The American Agricultural Economics Association Annual Meeting, 29 July to 1 August 2007, Portland.
Dickey A D and Fuller W A 1981. Likelihood ratio test statistics for autoregressive time series with a unit root. Econometrica, 49: 1057-1072.
Engle R and Granger C W 1987. Co-Integration and error correction: representation, and testing, Econometrica, 55: 251-276.
Esposti R and Listorti G 2013. Agricultural price transmission across space and commodities during price bubbles. Agricultural Economics, 44: 125-139.
Ghafoor A, Mustafa K and Mushtaq K 2009. Cointegration and causality: An application to major mango markets in Pakistan. The Lahore Journal of Economics, 14(1): 85-113.
Goletti F and Babu S 1994. Market liberalization and integration of maize marketsin Malawi. Agricultural Economics, 11:311.
Johansen S and Juselius K 1992.Testing structural hypothesis in a multivariate cointegration analysis of the PPP and UIP for UK. Journal of Econometrics, 53: 211-244.
Kirchgässner G, Wolters J and Hassler U 2012. Introduction to modern time series analysis. Springer Science and Business Media.
Kumar R M, Yamanura and B Boraiah 2021. Performance of elite castor (Ricinus communis L.) hybrids and varieties under rainfed Alfisols. Journal of Oilseeds Research, 38(1): 37-42.
Kumari R, Vijaya, Ramakrishna G, Venkatesh P and Sreenivas A 2019. Price movements of redgram major markets in India by using cointegration analysis. International Research Journal of Agricultural Economics and Statistics, 10(2): 234-239.
Kumari R, Vijaya, Sreenivas A, Ramakrishna G. and Venkatesh P 2021. Co-integration of major soybean markets in India. Journal of Oilseeds Research, 38(1): 84-91.
Nazlioglu S, Cumhur E B and Ugur S 2013. Volatility spillover between oil and agricultural commodity markets. Energy Economics, 36: 658-665.
Zhang Z, Lohr L, Escalante C and Wetzstein M 2010. Food versus fuel: What do prices tell us? Energy Policy, 38: 445-451.
