Effects Of Plastic Bags

1207 Words3 Pages

Plastic bags are an established part of shopping, and although convenient, cause substantial environmental damage worldwide. Australia’s consumption is estimated at well over 5 billion bags per year, and of these, only three percent are recycled. (Boomerang Alliance, 2015) This results in the majority of bags ending up in landfill or the environment, imposing significant impacts on wildlife (Animals Australia, 2012). This critical analysis will therefore summarise the issues surrounding plastic bags, the economic model for a tax on plastic bags and whether the tax would be effective in correcting the market failure in Australia.

The useful life of a single-use plastic bag is relatively short, however, it imposes a significant social cost …show more content…

Externalities lead to market failures and effect people that are not directly involved in the production or consumption of goods. The consumption of plastic bags is regarded as a negative externality, as the private benefits provided are outweighed by the social costs imposed such as environmental damage, as well as litter and landfill costs (Environment Protection Authority, 2016). These negative impacts are not captured in the price of the good and therefore lead to over consumption and an inefficient equilibrium. Economist Arthur Cecil Pigou, argued that to deal with a negative externality the government should impose a tax equal to the cost of the externality ("Arthur Cecil Pigou", 2008). Figure 2.0, illustrates such effect of a tax implemented, in relation to the consumption of plastic …show more content…

A ban would entail the removal of all plastic carry bags and prohibit retailers from distributing them (Environment Protection Authority, 2016). Since South Australia’s plastic bag ban was introduced in 2009, over 400 million bags have been removed from the economy each year, and there has been a 45 percent reduction of HDPE bags in litter streams (Wildlife Queensland, 2015). A ban would also pose benefits on grocery prices, as the current cost of 2-3 cents per plastic bag, would no longer be distributed by retailers amongst goods (Environment Victoria, 2010). However, it is economically argued that eliminating plastic bags is inefficient as the total cost of doing so would be greater than the total benefits (Clapp & Swanston, 2009, p.321)

A tax is an effective policy that can be imposed to reduce the consumption of plastic bags in Australia. While a tax will not eliminate plastic bags completely, it corrects market failure and establishes an efficient market equilibrium. An alternative policy such as a plastic bag ban, if employed would significantly reduce the amount of bags in circulation, however is economically perceived as inefficient as the costs outweigh the benefits. However, either of the policies posed would reduce the impact on the environmental impact and the social costs borne by

Open Document