The impact of market and policy instability on price transmission between wheat and flour in Ukraine
Stephan von Cramon-Taubadel and
European Review of Agricultural Economics, 2009, vol. 36, issue 2, 203-230
Analysis of price transmission in transition countries is often complicated by unstable policy environments. We use a Markov-switching vector error-correction model (MSVECM) to model multiple regime shifts in the relationship between wheat and wheat flour prices in Ukraine from June 2000 to November 2004. Unlike common alternative error correction specifications, the MSVECM does not require an explicit transition variable but rather permits changes between regimes to depend on an unobserved state variable. The analysis reveals four regimes whose timing coincides with political and economic events in Ukraine. Strong coincidence between a 'high-uncertainty' regime and discretionary policy interventions suggests that policy responses to fluctuations in Ukrainian harvests may have amplified instability. Oxford University Press and Foundation for the European Review of Agricultural Economics 2009; all rights reserved. For permissions, please email firstname.lastname@example.org, Oxford University Press.
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