By Nasiru Ibrahim
Limited information in the market leads to inefficiency and misallocation of resources. A low-quality product or service can command a higher price, while high-skilled labour may receive lower wages. A seller with a high-quality product or service may incur losses because buyers cannot easily verify quality and are unwilling to pay a premium, fearing they may be overpaying for a low-quality alternative.
For example, a faulty car may sell at a high price because buyers lack technical knowledge, rely on appearances, brand reputation, or sellers’ claims, and face high inspection costs. A firm that chooses to be honest may lose by earning a lower profit margin because dishonest competitors exaggerate quality, cut corners, or hide defects while charging similar prices.
A quack or less-skilled consultant with fewer credentials and a weak track record may secure contracts faster due to information gaps, strong social networks, aggressive self-marketing, and clients’ inability to assess true competence before hiring.
In many markets, buyers seek to identify quality products or services by looking for higher prices, good public relations, branding, and heavy advertising. Poor-quality products and inefficient firms can imitate these signals, so both high- and low-quality products are often sold at roughly the same price. Under rational expectations, sellers understand that buyers believe higher prices signal higher quality. Buyers, lacking better information, rely on price as a shortcut, and low-quality sellers exploit this belief, leading to market failure similar to Akerlof’s Market for Lemons.
Demand for Experts, Agents, and Intermediaries
Information asymmetry increases the demand for experts, agents, consultants, brokers, and intermediaries who can distinguish good quality from bad. These agents help consumers get better deals and higher-quality products or services.
While this creates jobs, it does not necessarily solve consumer exploitation. Agents may collude with sellers, prioritise commissions over client welfare, exploit client ignorance, or add extra layers of cost without improving quality.
For example, if tax policy were simple and clearly understood, few people would need tax consultants. Complex systems create jobs for consultants and financial literacy experts. While this raises incomes and GDP, it can also raise prices because the cost of intermediaries is embedded in goods and services, contributing to inflation.
Efficiency vs Employment Trade-Off
Reducing information asymmetry improves efficiency but can increase unemployment in the short run. Many jobs—brokers, consultants, agents, and middlemen—exist mainly because consumers lack information. When governments improve transparency through clear regulations, digital platforms, and public data, fewer intermediaries are needed. As a result, demand for these expert roles declines, leading to job losses.
This creates a policy trade-off: greater transparency improves efficiency but reduces employment in information-based intermediary jobs. To manage this, governments should invest in retraining and help displaced workers move into sectors where skills add real value rather than exploiting information gaps.
Moral Hazard—Buyers Can Also Cheat
Moral hazard occurs after a transaction, when one party changes behaviour because costs are partly borne by the other party. Buyers are not always passive; they may also cheat when incentives allow.
Examples include tenants damaging rented property because repair costs are borne by landlords, insured individuals exaggerating losses, clients hiding information or misusing professional advice, and borrowers diverting loans to unintended uses.
Buyer-side moral hazard worsens inefficiency. Sellers respond by raising prices, tightening contracts, reducing quality, or exiting the market. Honest buyers then face higher costs and fewer choices, while resources are allocated to monitoring and enforcement rather than to productive activity. Information asymmetry is therefore two-sided, and policies must address both adverse selection and moral hazard through better contracts, monitoring, and enforcement.
Guarantees, Warranties, and Mixed-Quality Equilibrium
Guarantees and warranties are often introduced to signal product quality. High-quality sellers are willing to offer guarantees because defects are less likely, which should push low-quality products out of the market.
However, guarantees also create buyer-side moral hazard. Buyers may reduce care, overuse, or deliberately damage products because repairs or replacements are covered. This increases warranty costs for all producers.
High-quality firms may respond by raising prices, limiting coverage, or reducing quality investment. Low-quality firms can mimic guarantees by pricing in expected abuse. As a result, good and bad products coexist in equilibrium, despite the presence of guarantees. Guarantees improve trust but do not fully resolve market failure. Moral hazard shifts costs rather than eliminating inefficiency.
Digital Platforms, Formalization, and Consumer Protection
E-commerce and digital marketing platforms reduce information asymmetry by increasing price transparency, reviews, ratings, comparisons, and direct access to sellers. These tools reduce reliance on intermediaries and help consumers verify quality.
In cities like Abuja, Port Harcourt, and Lagos, consumers can reduce exploitation by:
Asking for the previous selling price and comparing across sellers.
Signaling willingness to switch if the price is unfair.
Checking online prices, reviews, or multiple shops to reduce information asymmetry!
Government can also reduce information asymmetry by formalizing markets, which improves record-keeping, transparency, standardization, and contract enforcement. Clear, fair, and incentive-based tax systems encourage voluntary compliance, provide access to credit, legal protection, and government contracts.
The government may invest ₦100 million in upgrading informal markets in Kano, Lagos, and Port Harcourt and taxing ₦20 million annually per market allows the government to recover costs within five years while boosting GDP and creating jobs.
Without incentives, multiple overlapping taxes increase compliance costs and deepen informality. Corruption, waste, and misuse of funds reduce citizen trust. Transparent, fair, and accountable government policies promote efficiency, formalisation, and market growth, while distrust, overconfidence, and policy failures harm the economy.
Ibrahim is a graduate of Economics from Bayero University, Kano and can be reached via nasirfirji4@gmail.com.