12: Policy, Subsidies, and Welfare Analysis in Agriculture
- Page ID
- 308031
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)- 12.1: Price Ceiling
- In some circumstances, the government believes that the free market equilibrium price is too high. If there is political pressure to act, a government can impose a maximum price, or price ceiling, on a market.
- 12.2: Price Support
- This page examines the welfare effects of governmental price support policies for agricultural producers, particularly in wheat markets. It analyzes scenarios of price support, showing how these can lead to increased producer surplus but often at a societal cost due to surpluses and inefficiencies.
- 12.3: Quantitative Restriction
- This page discusses agricultural subsidy policies in high-income nations, including price supports and quantitative restrictions aimed at increasing producer surplus. While these strategies can elevate prices, they risk creating surpluses and can have negative consumer impacts, depending on demand elasticity. Inelastic demand can favor producers, while elastic demand may lead to losses.
- 12.4: Import Quota
- This page examines the benefits and drawbacks of free trade and import quotas, particularly in the context of sugar in the USA. While voluntary trade can provide advantages, it often leads to unequal benefits, with domestic producers and government gaining at the expense of consumers. Import quotas drive up prices, decrease demand, and create inefficiencies. The analysis shows increased supply and gains for producers, while highlighting significant consumer losses.
- 12.5: Taxes
- Taxes are often imposed to provide government revenue. The government also uses taxes to decrease the consumption of a good such as alcohol or tobacco. These taxes are called “sin taxes,” on goods that are not favored by society. These goods often have inelastic demands, which allows the government to apply a tax and earn revenues. Taxes can also be used to meet environmental objectives, or other societal goals: goods such as gasoline and coal emissions are taxed.
- 12.6: Subsidies
- This page examines subsidies as a policy tool to aid producers and encourage consumption by altering price dynamics. It analyzes welfare implications, illustrating that while subsidies enhance benefits for consumers and producers, they result in considerable taxpayer costs. Using corn subsidies as a case study, it quantifies changes in consumer and producer surplus, government expenditure, overall social welfare, and deadweight loss.
- 12.7: Immigration
- Labor-intensive agriculture such as fruit and vegetable production in high income nations employs immigrant workers and pays low wages. These workers offer an enormous contribution to the agricultural economy through hard work in the production of food and fiber. However, it is possible that immigration can have a negative impact on rural towns, since the provision of public services such as medical facilities, schools, and housing for low-wage workers is often costly.
- 12.8: Welfare Impacts of International Trade
- This page analyzes the welfare effects of international trade, particularly focusing on wheat trading impacts on consumers and producers in both exporting and importing countries. It illustrates that while exporting nations benefit from higher prices, their consumers incur losses. In contrast, importing nations enjoy lower prices at the expense of their producers.
- 12.9: Problem Sets
- This page examines the effects of price controls on market dynamics, addressing price ceilings that cause shortages by raising demand and lowering supply, and price supports that assist producers but inflate consumer prices. It explains how quantitative output restrictions and import quotas influence pricing and consumer costs.
Thumbnail: A diagram to demonstrate welfare economics. (CC BY-SA 3.0; Patrickbeardmore via Wikipedia)


