Market-based supply-side policies aim to improve economic efficiency through reduced government intervention and enhanced market mechanisms.
Market-based policies focus on removing barriers to market efficiency rather than direct government intervention.
Policies to encourage competition
- Deregulation removes unnecessary government controls and bureaucratic procedures from private sector activities.
- Privatisation transfers state-owned enterprises to private ownership to improve efficiency and service quality.
- Trade liberalisation reduces international trade barriers to promote global competition.
- Anti-monopoly regulation prevents market domination and ensures competitive markets.
The deregulation of telecommunications has created more competition and lower prices in many countries.
Labour Market Policies
- Reducing trade union power allows wages to respond more flexibly to market conditions.
- Reducing unemployment benefits encourages faster return to work through stricter eligibility requirements.
- Abolishing minimum wages enables market-determined wage rates to clear labour markets efficiently.
- Students often mistakenly think that anti-monopoly regulation is just another type of restrictive business regulation.
- Actually, it promotes competition by preventing single firms from dominating markets.
The diagram below illustrates how minimum wage policies can create labour market distortions:
- Government-imposed minimum wage ($W_{min}$) sits above the market equilibrium wage ($W_e$).
- At $W_{min}$, the quantity of labor supplied ($Q_s$) exceeds quantity demanded ($Q_d$).
- This difference ($Q_s - Q_d$) represents unemployment created by the wage floor (minimum wage).
- Removing minimum wage allows the wage rate to fall to $W_e$.
- This lower wage costs encourage firms to hire more workers.
- This causes the market to reach equilibrium with higher employment ($Q_e$).
- The increased employment contributes to higher productive capacity.
- Furthermore, lower labor costs help reduce overall production costs.
Incentive-Related Policies
- Personal income tax cuts increase workers' take-home pay and motivation to work longer hours.
- Business tax reductions provide firms with more resources for investment and innovation.
- Lower capital gains tax encourages greater savings and investment in productive assets.
Ireland's low corporate tax rate of 12.5% has successfully attracted international investment and boosted domestic business growth.
All these market-based supply-side policies work together to enhance the economy's productive capacity. Their combined effect can be illustrated using the AD/AS model:
The diagram above illustrates how supply-side policies affect the economy:
- The initial equilibrium occurs at price level $P_1$ and output $Y_1$.
- When market-based policies are implemented, it reduce costs of production across the economy.
- The lower costs shift LRAS rightward from $LRAS_1$ to $LRAS_2$ / $AS_1$ to $AS_2$.
- Firms can now produce more output at each price level.
- This forms a new equilibrium at a lower price level $P_2$ and higher output $Y_2$.
- Therefore, the economy achieves both lower inflation and higher real GDP.
- Hence, potential output increases without creating inflationary pressure.
New Zealand's Employment Contracts Act of 1991 significantly increased labor market flexibility.


