tailieunhanh - Price transmission in the value chain of hard clam in Vietnam

The export price of hard clam is estimated not to be affected in the short run by prices in other markets except retail price in domestic markets. Error correction models confirm the independence of hard clam price on annual seasons. | Price transmission in the value chain of hard clam JED January 2014| 127 Price Transmission in the Value Chain of Hard Clam in Vietnam NGUYỄN MINH ĐỨC Nông Lâm University nguyenminhducts@ ARTICLE INFO ABSTRACT Article history: Received: March 20, 2013 Received in revised form Aug. 20, 2013 Accepted: Dec. 31, 2013 Using data collected from 2007-2010, this study identifies price linkages and then forecasts vertical price transmission elasticities between markets (farm, wholesale, retail and export) in the value chain of hard clam (Meratrix lyrata) in Vietnam. After doing necessary tests to make sure that all price data are stationary, Seemingly Unrelated Regression (SUR) and Error Correction Model (ECM) are employed to examine short-time and long-time effects of hard clam price in one market on the other market in its value chain. The seemingly unrelated regression results show that hard clam prices seem not depend on seasons. Farm price of hard clam is transmitted completely to wholesale price while the price in retail market causes negative effect on farm price in the short run. Wholesale price of hard clam is transmitted to both prices in farm and retail markets. The export price of hard clam is estimated not to be affected in the short run by prices in other markets except retail price in domestic markets. Error correction models confirm the independence of hard clam price on annual seasons. The transmission elasticities of prices between the markets are also identified based on model estimation. Keywords: hard clam, price transmission, time series analysis, SUR, ECM 128 | Nguyễn Minh Đức | 127 - 143 1. INTRODUCTION Fish demand is increasing in the Vietnamese domestic market, especially in HCMC. The number of supermarkets rises every year. Vietnamese people consume mostly fish (including freshwater and marine fish) in fishery structure consumption. In a recent study, most of Vietnamese consumers prefer fresh products of fish to frozen .

• Kinh tế học
• Hard clam
• Price transmission
• Time series analysis
• Value chain of hard clam
• Seemingly unrelated regression
• ECM model
• Meretrix lyrata
• Hard clam farming
• Proposing management model
• Marine Stewardship Council certificate
• Management status of hard clam
• nuôi trồng thủy sản
• các loại giống thủy sản
• kinh nghiệm nuôi thủy sản
• kỹ thuật nuôi thủy sản
• Interest rate pass through
• Monetary policy
• Error correction model ECM
• Adjustment speed
• Commercial banks of Viet Nam
• BMC Genetics
• 5 hydroxymethylcytosine
• Predictive model
• Gastrointestinal cancers
• Cell cycle
• ECM organization