Comprehensive Study Notes on Free Trade and Protection

Fundamental Concepts of Free Trade and Protection

• Protection Defined: Protection refers to any policy implemented by a government intended to provide domestic producers with an artificial advantage over foreign competitors.
• Free Trade Defined: Free trade is the trade of exports and imports in which the government exerts little influence on the decisions of private firms and individuals. In this system, competitive market forces determine trade patterns.
• Economies of Scale: This is a vital type of efficiency occurring when higher output reduces long-run average costs.
  • Example: A large car factory costing $100,000,000 to build that produces only one car results in an average fixed cost of $100,000,000. If it produces 500,000 cars, the average fixed cost drops to $200 per car.
  • Economies of scale are primarily achieved through specialisation and free trade.

The Importance of Trade to Australia

• Growth in Trade Intensity:
  • In 1970, exports and imports each accounted for approximately $13\%$ of Australia’s GDP.
  • By 2014, both exports and imports increased to over $20\%$ of GDP each, resulting in a trade intensity of over $40\%$.
• Economic Impact:
  • $1/5$ of Australia's national income is derived from exports.
  • $1 \text{ in } 5$ jobs in Australia are directly linked to trade.
• Global Context:
  • Australia is a relatively small exporter on the world stage, accounting for $1.3\%$ of global exports. By comparison, China accounts for $11\%$ of global trade.
  • Australia and Brazil are the only two economies in the Southern Hemisphere that rank among the world's largest economies.

Determining Trade Patterns and the Demand and Supply Model

• Specialisation: Countries decide what to export and import based on relative efficiency. They specialise in producing goods and services they are "good at" and import those they are less efficient at producing.
• Price Indicators:
  • If the domestic price ($P_d$) is lower than the world price ($P_w$), the country is more efficient at producing that good and possesses a comparative advantage.
  • A lower domestic price indicates a lower opportunity cost, signifying that the country will benefit from exporting the good.
• Consumer and Producer Surplus:
  • Consumer Surplus (CS): The benefit to consumers, measured as the difference between what consumers are willing and able to pay and the market price.
  • Producer Surplus (PS): The benefit to producers, measured as the difference between what producers are willing and able to supply and the market price.

The Gains from Trade: Exports

• Conditions for Exporting: Exporting occurs when the world price ($P_w$) is higher than the domestic price ($P_d$).
• Microeconomic Changes in the Individual Market:
  • Producer Surplus: Increases because producers receive a higher price and sell a larger quantity. In the provided model, it increases from regions $3 + 5$ to $2, 3, 4, 5 + 6$.
  • Consumer Surplus: Decreases as consumers pay more and consume less. It drops from regions $1, 2 + 4$ down to just region $1$.
  • Market Dynamics: Demand contracts from $Q_d$ to $Q_1$. Supply expands from $Q_d$ to $Q_2$.
  • Total Surplus (TS): There is an overall gain in total surplus represented by region $6$.
  • Distribution: Domestic consumption accounts for $0 \rightarrow Q_1$, while the quantity $Q_1 \rightarrow Q_2$ is exported.
• Macroeconomic Gains from Exports:
  • Export income acts as an injection into the circular flow of income.
  • Net exports increase, shifting the Aggregate Demand (AD) curve to the right.
  • Export firms increase output and hire more workers, leading to a fall in Unemployment (UE) and a rise in Household (HH) income.
  • Higher incomes lead to increased Consumption (C), which further boosts firm revenue and output across the economy (the Multiplier effect).
  • Fiscal Impact: The cyclical budget balance improves as tax revenues increase (higher company profits, higher income tax, more GST) and transfer payments (unemployment benefits) fall.

The Gains from Trade: Imports

• Conditions for Importing: Importing occurs when the world price ($P_w$) is lower than the domestic price ($P_d$).
• Microeconomic Changes in the Individual Market:
  • Consumer Surplus: Increases as consumers pay lower prices and consume more. It increases from region $1$ to regions $1, 2, 4 + 5$.
  • Producer Surplus: Decreases as producers receive less and sell less. It drops from regions $2 + 3$ to just region $3$.
  • Market Dynamics: Demand expands from $Q_d$ to $Q_2$. Supply contracts from $Q_d$ to $Q_1$.
  • Total Surplus: There is an overall gain in total surplus represented by regions $4 + 5$.
  • Distribution: Domestic supply covers $0 \rightarrow Q_1$, while the quantity $Q_1 \rightarrow Q_2$ is imported.
• Macroeconomic Impacts of Imports:
  1. Consumers: Access to wider choice and better-quality products, raising material living standards.
  2. Firms (Intermediate Goods): Lower production costs for firms importing raw materials or inputs, increasing competitiveness and output.
  3. Firms (Capital Goods): Machinery and vehicles can be imported more cheaply, improving efficiency and driving economic growth.
  • Global Integration: Imports foster ties with other nations, leading to increased foreign investment and skilled worker migration.

Absolute and Comparative Advantage

• Absolute Advantage: Exists if a entity can produce more of a good or service, or produce it faster, than someone else using the same resources.

  • Example: Mrs B marks 6 essays per hour; Mr B marks 2. Mrs B has the absolute advantage.

• Comparative Advantage: Exists if an entity can produce a good or service at a lower opportunity cost than someone else (sacrificing less of another good).

• The Calculation Equation:$\text{Opportunity Cost} = \frac{\text{What we give up}}{\text{What we gain}}$

• Case Study: Noah and Luca (Odd Jobs):

  • Noah (12 hours): Can mow 6 lawns or wash 12 cars.
    • OC of 1 Lawn = $12/6 = 2 \text{ Cars}$.
    • OC of 1 Car = $6/12 = 1/2 \text{ Lawn}$.
  • Luca (12 hours): Can mow 4 lawns or wash 6 cars.
    • OC of 1 Lawn = $6/4 = 1.5 \text{ Cars}$.
    • OC of 1 Car = $4/6 = 2/3 \text{ Lawn}$.
  • Result: Luca has a comparative advantage in lawns (1.5 < 2). Noah has a comparative advantage in cars (0.5 < 0.67).

The Theory of Comparative Advantage and the PPF

• Case Study: Isles of Billy vs. Republic of DJ:
  • Production per day:
    • Billy: 140 Choccy Wams or 70 HASS Hats.
    • DJ: 250 Choccy Wams or 100 HASS Hats.
  • Absolute Advantage: Republic of DJ has the absolute advantage in both products.
  • Opportunity Costs:
    • Isles of Billy: 1 Choccy Wam = $0.5 \text{ Hat}$; 1 Hat = $2 \text{ Choccy Wams}$.
    • Republic of DJ: 1 Choccy Wam = $0.4 \text{ Hat}$; 1 Hat = $2.5 \text{ Choccy Wams}$.
  • Specialisation: DJ specialises in Choccy Wams (OC 0.4 < 0.5). Billy specialises in HASS Hats (OC 2 < 2.5).
• Terms of Trade (TOT): For both to gain, the trade price must fall between their opportunity costs.
  • Example: 1 Choccy Wam costs $0.45 \text{ Hats}$.
  • Reciprocal: 1 Hat costs $1/0.45 \approx 2.22 \text{ Choccy Wams}$.
• Production Possibility Frontier (PPF):
  • If PPFs have the same gradient, OCs are the same, and no gains from trade exist.
  • Different gradients indicate different OCs and potential gains from trade.

Assumptions and Criticisms of Comparative Advantage

• Standard Assumptions:
  • Only two countries and two commodities.
  • Similar tastes in both countries.
  • Labour is the only factor of production; prices are determined by labour units.
  • Factors are perfectly mobile within countries but immobile between countries.
  • Constant costs and full employment exist.
  • No transport costs and perfect international markets.
• Criticisms:
  • Labour is heterogeneous (different skills/experience).
  • Tastes differ significantly between countries.
  • Fixed proportions of labour are unrealistic as production types vary.
  • Transport costs are essential in determining trade patterns.
  • Factors of production are often immobile internally.
  • Neglects the demand side of trade and fails to explain the distribution of gains.

Sources of Comparative Advantage

1. Natural Resources: Abundance of farmland, minerals, oil, gas, or labour, influenced by climate and geography.
2. Economies of Scale: Incentives for large-scale production to lower average costs. Small countries have more incentive to export to achieve these scales.
3. Labour Quality/Quantity: Demographics (ageing population, migration), education levels, and workforce participation rates.
4. Financial Institutions/Investment: R&D for innovation, infrastructure investment, stable banking/legal systems, and political stability.

Arguments for and against Free Trade

• Arguments For:
  • Higher national income and living standards (via the multiplier).
  • Increased specialisation and economies of scale leading to lower unit costs.
  • Attracts foreign investment to fill the savings-investment gap.
  • Increased productivity and incentive to innovate due to competition.
  • Lower prices and more choice for consumers.
• Arguments Against:
  • Infant Industries: New industries cannot compete with established foreign firms.
  • Structural Unemployment: Displaced workers require government retraining.
  • Externalities: Environmental damage and labour exploitation.
  • Dutch Disease: Over-dependence on one sector (e.g., resources).
  • Dumping: Unfair price cutting to eliminate competitors.

Types of Protection

• Tariffs: An indirect tax on specific imports. Governments receive tax revenue.
• Subsidies: A government grant to domestic producers to offset production costs, allowing them to sell below marginal cost.
• Quotas: A restriction specifying the maximum quantity of a commodity that can be imported.

The Impact of Tariffs and Subsidies

• Tariff Model Analysis:
  • Price increases from $P_w$ to $P_{wT}$.
  • Quantity of imports falls from $(Q_4 - Q_1)$ to $(Q_3 - Q_2)$.
  • Producer Surplus: Increases from area $3$ to areas $2 + 3$.
  • Consumer Surplus: Decreases from areas $1, 2, 4, 5, 6, 7$ to areas $1 + 7$.
  • Government Revenue: Indicated by area $5$.
  • Deadweight Loss (DWL): Efficiency loss represented by areas $4 + 6$.
• Subsidy Model Analysis:
  • Supply shifts right from $S_{d}$ to $S_{s}$.
  • Domestic production increases from $Q_1$ to $Q_3$. Imports fall.
  • Consumer Surplus: Remains unchanged as consumers pay the same world price ($P_w$).
  • Welfare Loss: The cost of the subsidy to the government ($DABW$) exceeds the increase in producer surplus ($DACW$), creating a DWL equal to area $ABC$.

Impacts of Protection on the Domestic Economy (GREY)

• G: Growth and Inflation:
  • Economic growth slows as resources are misallocated.
  • Retaliation by trading partners reduces export earnings.
  • "Imported inflation" occurs if tariffs are placed on household goods or intermediate inputs (shifting SRAS left).
  • RBA may raise interest rates to combat tariff-induced inflation.
• R: Resource Allocation:
  • Resources move away from efficient/competitive industries toward inefficient ones.
  • Economy operates below potential output, creating spare capacity.
• E: Efficiency:
  • Negative protection for exporters (e.g., mining) who pay higher prices for capital inputs they cannot pass on (as price takers).
  • Protected industries lack incentive to innovate or improve productivity.
  • Management and labour may retain outdated practices.
• Y: Income:
  • National income and material living standards fall.
  • Unemployment rises in export sectors, leading to a negative multiplier effect.

Specific Arguments for Protectionism

• Infant Industry: Arguing that industries need time to become competitive. Counter: This can take years and stifle efficiency.
• National Security/Self-Sufficiency: Ensuring vital industries (defence, food) exist domestically. Counter: Free trade creates a "peace dividend" by fostering closer relations.
• Employment: Protecting industries like textiles or motor vehicles. Counter: This is a short-term fix that props up inefficient industries and has an opportunity cost of lost growth in competitive sectors.
• Cheap Foreign Labour: Protecting high-wage Australian workers from low-wage competition. Counter: Wages are determined by productivity; Australia should import goods where high wage costs make production inefficient.
• Anti-Dumping: Preventing foreign firms from selling below cost to gain market share. Counter: Hard to prove; lower prices may just reflect superior efficiency.
• Balance of Payments: Trying to fix deficits. Counter: Protectionism reduces competitiveness, leading to lower exports and potential retaliation (trade wars).