Cointegration and spatial price transmission among rice markets in Tanzania: implications for price stabilisation policies

New Market Information Applications in East Africa: Three Essays on Mapping Trade Flows, Identifying Vulnerability in Food Commodity Networks, and Nowcasting Agricultural Prices in East Africa

“…The presence of common economic factors affecting the determination of price between marketplaces, such that they tend to a common equilibrium (Yussuf 2021; Mgale et al 2021;and Engle and Granger 1987) Short-run Dynamics Direction of (Granger) Causality -The short-run dynamic, by which prices from one series appear to forecast prices in another series Direction of trade and marketplace power, i.e., marketplace 'leaders' and 'followers' (Loy and Wichern 2000;Engle and Granger 1987;Gupta and Mueller 1982) Impulse Responses -The short-run deviation from the long-run equilibrium in one marketplace to a short-run price shock in another price series Price transmission efficiency, or market system integration (Goodwin et al 2021;Haile et al 2016;Goodwin and Piggott 2001;) Speed of Adjustment -The error correction speed (magnitude per period) at which marketing margins are corrected over time, relative to the longrun equilibrium level…”