4.7 Article

Accounting for price responses in economic evaluation of climate impacts for a fishery

Journal

ECOLOGICAL ECONOMICS
Volume 181, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.ecolecon.2020.106913

Keywords

Climate change; Anchovy fishery; South Korea; Price response; Inter-regional input-output model

Funding

  1. National Institute of Fisheries Science, Republic of Korea [R2020031]
  2. Institute of Planning & Evaluation for Technology in Food, Agriculture, Forestry & Fisheries (iPET), Republic of Korea [R2020031] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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This study evaluates the economic impacts of fluctuations in anchovy catch in Gyeong-Nam province, South Korea, due to warming seawater, by combining an IRIO model and SES to project the price and quantity of anchovies. The research finds that estimates of economic impacts may be biased if only quantity change is considered without accounting for price responses, filling a critical gap in previous IO-based economic impact analyses of fisheries.
The present study evaluates the economic impacts of fluctuations in anchovy (Engraulis spp.) catch in Gyeong-Nam (GN) province, South Korea, arising due to warming seawater, accounting for the effects of the responses of the anchovy price. It combines an inter-regional input-output (IRIO) model of two regions (i.e., GN province and all other provinces combined) with a simultaneous equation system (SES) of anchovy supply and demand functions estimated to make projections of the price and quantity of anchovies based on two greenhouse gas (GHG) concentration scenarios (i.e., representative concentration pathway (RCP) 4.5 and 8.5). Results indicate that estimates of the economic impacts for the two regions will be biased if we consider only the quantity (harvest) change when computing the economic impacts without accounting for the effects of the price responses. None of the previous IO-based economic impact analyses of fisheries account for the price effects induced by a quantity shock. This study fills this critical void by considering such effects.

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