A staggered pricing approach to modeling speculative storage: implications for commodity price dynamics

Hirbod Assa, Amal Dabbous and Nikolay Gospodinov

No 2013-08, FRB Atlanta Working Paper from Federal Reserve Bank of Atlanta

Abstract: This paper embeds a staggered price feature into the standard speculative storage model of Deaton and Laroque (1996). Intermediate goods inventory speculators are added as an additional source of intertemporal linkage, which helps us to replicate the stylized facts of the observed commodity price dynamics. Incorporating this type of friction into the model is motivated by its ability to increase price stickiness which, gives rise to a higher degree of persistence in the first two conditional moments of commodity prices. The structural parameters of our model are estimated by the simulated method of moments using actual prices for four agricultural commodities. Simulated data are then employed to assess the effects of our staggered price approach on the time series properties of commodity prices. Our results lend empirical support to the possibility of staggered prices.

Keywords: commodity price determination; staggered pricing; high persistence; conditional heteroskedasticity; simulated method of moments (search for similar items in EconPapers)
JEL-codes: C15 E21 G12 O13 Q11 (search for similar items in EconPapers)
Pages: 30 pages
Date: 2013-09-01
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