5. What implications might the fact that efficient market is a public good have for the efficiency with which governments function? A public good is a good which can be enjoyed by all citizens without someone being excluded from using it. For example, anyone can attend a public school or visit a public park without another citizens being excluded from using the park or attending the school. We know that public goods are non- excludable and non-rival in nature. An efficient government is a public good in the sense that the efficiency of a government is enjoyed by all the citizens of the country. A government functioning efficiently refers to better economic conditions, better standard or living , protection of rights and environment , equitable distribution of income . These factors are enjoyed by every citizen. One getting the benefits from an efficient government does not reduce the benefits received by another. Or By definition, a public good is a commodity provided for all. It is non-excludible and non-rival; therefore there won't be a need to pay for the benefit. This is usually provided by the government or the private sector. An efficient market on the other hand pertains to a market that incorporates all available information into prices. Therefore, prices are expected to be correctly valued (Chappelow, 2020). This could be a benefit for all as there is assurance that consumers pay for the value they receive. With this in mind, an efficient government plays a role in encouraging and discouraging markets. It can implement rules and regulations in order to increase market efficiency. It can implement regulations in ensuring transparency among the private sector, and formulating standards for annual reports. This gives confidence to the consumers that economic events are disclosed by the entity. The government can also influence the pricing behaviour of the market, by implementing price ceiling and price floors. It can regulate the entry and exit of businesses in an industry. And the government can improve infrastructure such as internet connection, and websites in order to attain perfect knowledge on the market at zero or minimum cost. 6. Discuss the issue of vaccination from the perspective of public goods/externalities. Why might individuals not voluntarily consent to be vaccinated? Externalities cause market failure if the price mechanism does not take account of the social costs and benefits of production and consumption A positive consumption externality occurs when consuming a good cause a positive spill over to a third party lying outside the transaction. Vaccinated is positive consumption externality. We can see the graph Social benefits of consumption exceed the private benefits The social marginal benefit curve (SMB) is drawn higher than private marginal benefit (PMB) In a free market (without government intervention) there will be underconsumption of goods with positive consumption externalities This leads to market failure Vaccinations produce positive externalities, since one individual’s receiving a shot reduces his or her chances of getting sick as well as the chances of those around him. But that individual does not take into account the benefits to those around who are less likely to get sick. It is possible to free ride off of others’ vaccinations; if everyone else is vaccinated except one person, the chances that any one person will get sick are greatly reduced, even without receiving a shot him- or herself. Considering the time costs and the potential pain of the procedure, people may attempt to free ride and may not voluntarily consent to being vaccinated.