In Korea, fishery managers, eco-labeled program operators, and the government need detailed information regarding individual-level preferences for eco-labeled seafood. This study aims to identify the determinants of consumer preference for such seafood. Specifically, an ordered probit model is estimated by using micro-survey data obtained from interviews of 2773 randomly selected Korean households. Overall, the estimation results reveal that the chosen model is appropriate to analyze consumer preference for eco-labeled seafood. The coefficients of consumption frequency, the importance of price, the confirmation of origin, residential area, and household income are statistically meaningful. If consumers consider price an important factor, their consumption of eco-labeled seafood may decrease. Moreover, consumers with interest in the origin of seafood are more likely to accept eco-labeled seafood. To increase the consumption of eco-labeled seafood, it is recommended to develop products designed specifically for segmented markets and promote functional features. The findings can provide a valuable guideline to marketing managers and policy makers for designing effective strategies regarding eco-labeled seafood.

The purpose of this study is to examine how the competitive advantage on international markets based on sustainable production is reflected in the pricing behavior of farmed fish, using Norwegian Atlantic salmon (Salmo salar) as an example. The salmon is widely consumed and highly traded due to the rapid development of aquaculture. Norway, which has been successful in regulating and innovating for sustainable aquaculture, accounts for more than half of world production. A model dealing with pass-through of exchange rates and tariff rates based on the exporter’s profit maximization was applied to 28 major countries importing from Norway, using yearly panel data for 2000–2016. Significant evidence of price discrimination was observed in Asian countries where Norway has a high market share, such as China, South Korea, Thailand, and Vietnam. This implies that the market structure of imperfect competition played a major role, suggesting the need to diversify imports to transform the market structure in favor of consumers in Asian countries. Research on the pricing behavior of fisheries products, including cultured fish, is limited in international trade. This paper addresses the gap by applying the pass-through model with changes in tariff rate as well as exchange rate.

This study investigates the relationship between climate change and Manila clam (Ruditapes philippinarum) production in South Korea and assesses the resulting economic impacts through a comprehensive analysis. Using fixed effects panel regression models, the study evaluates key climate factors sea surface temperature, salinity, rainfall, and tidal flat area to quantify their effects on clam production across four major regions (Chungnam, Jeonnam, Jeonbuk, and Gyeongnam) from 2000 to 2022. Future production changes and associated economic losses are projected under Shared Socio-economic Pathway (SSP) scenarios (SSP1-2.6, SSP2-4.5, SSP5-8.5), with adjustments to account for discrepancies between observed and predicted climate data. The findings indicate that Manila clam production will decline consistently across all SSP scenarios, with maximum total production reductions and associated long-term (2041 ~ 2050) economic losses reaching 29.2% and KRW 258.8 billion under SSP1-2.6, 37.9% and KRW 335.6 billion under SSP2-4.5, and 52.0% and KRW 460.7 billion under SSP5-8.5, respectively. Among the four regions, Jeonnam was identified as the most vulnerable, followed by Gyeongnam, Jeonbuk, and Chungnam, reflecting region-specific differences in exposure and adaptive capacity. These results emphasize the extent of economic damage even with mitigation efforts, underscoring the urgent need for adaptive strategies. The study highlights the importance of high-temperature-resistant clam strains, aquaculture techniques, and region-specific management policies to sustain the Manila clam industry. Such measures will be critical to mitigating economic losses and ensuring the long-term sustainability of this valuable fisheries sector in South Korea.