Market Information Asymmetry and Price Instability in Nsukka Food Markets: A Microeconomic Study

Information asymmetry between buyers and sellers is a well-documented source of market inefficiency and price instability in agricultural and food commodity markets. This study investigates the relationship between market information asymmetry and price instability in Nsukka food markets, Enugu State, with data collected between 2022 and 2024. The study is anchored on the Theory of Information Asymmetry, as developed within the broader framework of Akerlof's market for lemons, which demonstrates how unequal access to market information distorts price formation and resource allocation. A survey research design was adopted, targeting traders and consumers in three major Nsukka food markets. From an estimated population of 5,600 market participants, a sample of 372 respondents was drawn using stratified random sampling. Structured questionnaires and direct price observation records were used as data instruments. Findings show that 65 percent of traders admitted to exploiting information gaps to set prices above competitive equilibrium levels, contributing to significant intra-day and intra-week price volatility in key food commodities including rice, yam, and palm oil. Consumers, particularly those from low-income backgrounds, bore the greatest welfare losses due to information disadvantage. The study concludes that information asymmetry is a principal driver of price instability in Nsukka food markets. It is recommended that state market boards deploy real-time digital commodity price boards in all major markets to reduce information disparities and protect consumer welfare.

Keywords: Information asymmetry, price instability, food markets, Nsukka, market efficiency