Chanjin Chung
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View article: A Direct Test of Sample Selection in the Cattle Procurement Market
A Direct Test of Sample Selection in the Cattle Procurement Market Open
This study tests for sample selection using data from a feedlot in Oklahoma by analyzing the distribution of cattle quality between alternative marketing arrangements and cash markets. Unlike previous studies employing Heckman and Roy mode…
View article: Effects of Smart Farming on the Productivity of Korean Dairy Farms: A Case Study of Robotic Milking Systems
Effects of Smart Farming on the Productivity of Korean Dairy Farms: A Case Study of Robotic Milking Systems Open
The Korean agricultural sector faces increasing challenges such as an aging population, labor shortages, and the liberalization of agricultural markets. To overcome these challenges, the Korean government has striven to enhance the competi…
View article: Estimating Market Power Exertion in the U.S. Beef Packing Industry: An Illustration of Data Aggregation Bias Using Simulated Data
Estimating Market Power Exertion in the U.S. Beef Packing Industry: An Illustration of Data Aggregation Bias Using Simulated Data Open
This study investigates data aggregation bias in estimating market power in the U.S. beef packing industry using New Empirical Industrial Organization (NEIO) models and shows empirical procedures that can alleviate the bias. Unlike many ea…
View article: Intertemporal comparison of cost and technical efficiencies using a base period approach for the Korean rice industry
Intertemporal comparison of cost and technical efficiencies using a base period approach for the Korean rice industry Open
Objectives of our study are to develop a procedure for intertemporal comparison of both technical and cost efficiency and estimate farm efficiency for the Korean rice industry from 2003 to 2017. The newly developed base‐year procedure excl…
View article: Influence of COVID-19 on Consumer Preference for Turfgrass Attributes in the Southern United States
Influence of COVID-19 on Consumer Preference for Turfgrass Attributes in the Southern United States Open
This study estimates the influence of the coronavirus disease 2019 (COVID-19) pandemic on consumer preferences for turfgrass attributes by analyzing data from two surveys conducted in Jan 2019 and Apr 2021. First, the study estimated a mix…
View article: The Role of the Social Network in Adopting New Turfgrass Varieties: An Analysis of Twitter Data
The Role of the Social Network in Adopting New Turfgrass Varieties: An Analysis of Twitter Data Open
This study examines the effect of social learning on new turfgrass variety adoption decisions using data from 231 turfgrass professionals’ Twitter accounts between 1 Jun 2018 and 31 Dec 2019. To determine the social learning effect, we dec…
View article: Consumers’ WTP for Sustainability Turfgrass Attributes with Consideration of Aesthetic Attributes and Water Conservation Policies
Consumers’ WTP for Sustainability Turfgrass Attributes with Consideration of Aesthetic Attributes and Water Conservation Policies Open
This study estimates consumers’ willingness to pay (WTP) for sustainability turfgrass attributes such as low-input and stress-tolerance attributes, while considering potential trade-off relationships between aesthetic attributes and sustai…
View article: Consumers’ WTP on Sustainability Turfgrass Attributes with Consideration of Aesthetic Attributes and Water Conservation Policies
Consumers’ WTP on Sustainability Turfgrass Attributes with Consideration of Aesthetic Attributes and Water Conservation Policies Open
This study estimates consumers’ willingness to pay (WTP) for sustainability turfgrass attributes such as low-input and stress-tolerance attributes, while considering potential trade-off relationships between aesthetic attributes and sustai…
View article: Impact of Aging and Underemployment on Income Disparity between Agricultural and Non-Agricultural Households
Impact of Aging and Underemployment on Income Disparity between Agricultural and Non-Agricultural Households Open
This paper examines how aging and underemployment affect household income and household income disparity between agricultural and non-agricultural sectors. Our study uses household panel data from South Korea for the period 2009–2016, whic…
View article: Modeling Salmonella Spread in Broiler Production: Identifying Determinants and Control Strategies
Modeling Salmonella Spread in Broiler Production: Identifying Determinants and Control Strategies Open
The presence of Salmonella spp. in broiler production is a food safety concern as the bacterium can be transmitted to humans via contaminated meat and derived products. Salmonella detection in litter at the pre-slaughter period has been li…
View article: Estimating Producers’ Preferences for Sod Attributes: A Combined Approach of Discrete Choice Experiments and Eye-tracking Technology
Estimating Producers’ Preferences for Sod Attributes: A Combined Approach of Discrete Choice Experiments and Eye-tracking Technology Open
This study combines a discrete choice experiment and eye-tracking technology to investigate producers’ preferences for sod attributes including winterkill reduction, shade tolerance, drought tolerance, salinity tolerance, and maintenance c…
View article: Economic Impact of Drought- and Shade-tolerant Bermudagrass Varieties
Economic Impact of Drought- and Shade-tolerant Bermudagrass Varieties Open
This study estimates potential economic impacts of developing drought- and shade-tolerant bermudagrass ( Cynodon dactylon ) turf varieties in five southern states: Texas, Florida, Georgia, Oklahoma, and North Carolina. First, estimates are…
View article: Optimal Commodity Advertising in Bilateral Oligopoly
Optimal Commodity Advertising in Bilateral Oligopoly Open
This study derives an optimal commodity advertising intensity rule for a vertically related market under bilateral oligopoly. The new optimality condition derived in this study extends the seminal Dorfman-Steiner Theorem [1] and recently p…
View article: Effects of Food Assistance Programs, Demographic Characteristics, and Living Environments on Children’s Food Insecurity
Effects of Food Assistance Programs, Demographic Characteristics, and Living Environments on Children’s Food Insecurity Open
The objective of this study is to examine impacts of food assistance programs, demographic characteristics, and socioeconomic status of households on children’s food insecurity in U.S. Annual cross-sectional and pseudo-panel analyses with …
View article: Consumers’ Shares of Preferences for Turfgrass Attributes Using a Discrete Choice Experiment and the Best–Worst Method
Consumers’ Shares of Preferences for Turfgrass Attributes Using a Discrete Choice Experiment and the Best–Worst Method Open
This study compares preference shares of stress-tolerant, low-maintenance, and low-cost turfgrass attributes in five states (Florida, Georgia, North Carolina, Oklahoma, and Texas) in the southeastern and midsouthern United States using the…
View article: ASSESSMENT OF MARKET POWER AND COST EFFICIENCY EFFECTS IN THE U.S. BEEF PACKING INDUSTRY
ASSESSMENT OF MARKET POWER AND COST EFFICIENCY EFFECTS IN THE U.S. BEEF PACKING INDUSTRY Open
This paper examines the simultaneous impacts of horizontal concentration and vertical integration on oligopoly & oligopsony power and cost efficiency in the U.S. beef packing industry, using both static and time varying empirical industria…