Public sector firms are more likely to be allocatively efficient focussing on serviceprovision and the full social costs/benefits involved
Public sector firms work to meet the needs and wants of the public to maximise social welfare, whilst taking externalities into account in operations
Prices could be lower with no over/under production as resources will be allocated at the socially optimum level of output, perfectly following consumerdemand, fixing any prior market failures
Public sector firms may benefit from larger economies of scale and productiveefficiency
Public sector firms are often natural monopolies with very high fixed costs and thus can benefit from lower average costs compared to smaller private firms
Allowing many private firms to provide such services will lead to a wastefulduplication of resources and thus allocative inefficiency
Public sector firms lack the incentive to minimise costs. This is because there is a lack of competitive pressure and a lack of a profit motive. Therefore these firms are unlikely to operate at the minimum point of their AC curve (unlikely to reach their MES) thus they voluntarily forgo economies of scale and are not productivelyefficient leading to higher prices and lower consumer surplus for consumers.
Nationalisation disadvantage : Diseconomies of scale
Public sector firms may suffer from diseconomies of scale. This is because as the sole provider in the market, public sector firms may become too large allowing for inefficiencies in the production process to creep in. The firm will suffer from higheraverage costs as it expands thus will be productively inefficient leading to higherprices and lower consumer surplus.
Public sector firms may be complacent and wasteful in production. This is because there is a lack of a profit motive and competitive pressure. Consequently, production may take place above the average cost curve resulting in X-inefficiency and firms having to rely on subsidies, which are costly, and a wasteful use of taxpayer's money
Nationalisation disadvantage: x-inefficiency
Nationalisation disadvantage: Lack of Dynamic efficiency
There is a lack of supernormalprofit made in the public sector. This is because the objective of public sector firms is to satisfy the public with low prices and high output. Dynamic efficiency is unlikely implying less innovation and technologyimprovements keeping costs and prices higher in the longrun.
Nationalisation disadvantage: Private sector may be more efficient
Prices may be lower and consumersurplus greater with private sector involvement. This is due to competitivepressure and a significant profitmotive hence firms will strive to be as efficient as possible lowering costs to remain competitive. Allocative efficiency may be achieved with resources following consumer demand and productiveefficiency achieved too with full economiesofscale exploitation.
Nationalisation disadvantage : Funded by tax payers money
Public sector provision is extremely expensive and funded through the taxpayer. There is a largeopportunity cost where this money could have been best used elsewhere where more benefit could have been derived e.g. in promoting education to reduce structuralunemployment or to help manufacturing base to re-balance and diversify the economy.
Nationalisation disadvantage : Moral hazard
There is a greater risk of moral hazard with public sector involvement. This is because politicians or governmentemployedmanagers are not directly accountable for their actions. As a consequence they are more likely to take on significant risk increasing the chance of projectfailure where the taxpayer pays the bill.