4.4 Economic Integration

The scenario specifies two features: (1) internal tariffs between members have been removed, and (2) each member independently sets its own trade policy towards non-members.

A free trade area (FTA) is defined by exactly these two characteristics — internal tariff removal plus retained independent external trade policy for each member. No stage below an FTA removes internal tariffs, and every deeper stage (customs union and beyond) replaces independent external tariffs with a common external tariff.

A customs union would require a shared common external tariff (CET), not independent national trade deals. A common market would additionally require free factor mobility. An economic union would also coordinate monetary and fiscal policy. None of these additional features are present in the scenario.

Because the bloc removes internal tariffs but each member retains its own external trade policy, this is a free trade area. This is also the feature that creates the trade deflection problem, since goods can enter through whichever member has the lowest external tariff.

The question asks which stage of integration matches a bloc where internal tariffs are gone but members independently set external trade policy.

A customs union requires all members to adopt a common external tariff on non-members. The scenario explicitly states each member negotiates its own separate trade agreements, so this option is ruled out.

A common market includes everything a customs union has plus free movement of factors of production (labour, capital, services). The scenario mentions none of these features, so a common market cannot be correct.

An economic union adds coordination of monetary and fiscal policy on top of a common market. The scenario describes no such policy coordination, eliminating this option.

The remaining option, free trade area, precisely matches the scenario: internal tariffs are removed, but each member keeps its own independent external trade policy. This is the correct answer.

A customs union goes beyond a free trade area by requiring all member countries to apply an identical tariff rate on imports arriving from non-member countries.

This uniform, shared tariff on imports from outside the bloc is called the common external tariff (CET). The word 'external' signals that it applies to non-members, and 'common' signals that every member charges the same rate regardless of which border the good enters through.

Without a CET, each member would set its own external tariff, making the arrangement only a free trade area. The CET is the precise additional element that elevates a trading agreement to the customs union stage of integration.

The shared tariff applied by SACU members on goods from outside the union is the common external tariff, the term examiners look for when identifying this feature of a customs union.

The question asks for the economic term that describes a tariff that is identical across all members of a customs union and applied to non-member imports.

Rules of origin are administrative criteria used in free trade areas to ensure goods qualify for internal tariff-free movement by having sufficient local content. They are not a tariff charged on non-member imports.

Trade deflection is the problem that occurs in an FTA when importers route goods through the lowest-tariff member. There is no standard economic instrument called a 'trade deflection levy' — this is a distractor.

A quota is a quantitative limit on imports, not a tariff. The scenario describes a tariff (a tax), not a quota, and 'internal' would refer to trade among members, which is the opposite of what is being described.

The only accurate term is common external tariff, which is precisely the shared tariff all customs union members apply to goods from outside the bloc.

The firm is switching from exporting (paying tariffs at each border) to producing inside the bloc so it can serve all member countries from one location without facing further tariffs. This is a classic description of inward foreign direct investment (FDI) driven by integration.

Economic integration converts several separate national markets into one large, barrier-free market. A single production site inside the bloc can now supply all members tariff-free, making the fixed cost of the factory justifiable because it is spread over a much larger volume of sales. This is the market size and scale mechanism that attracts inward FDI.

Trade creation and consumer surplus gains relate to consumers switching to cheaper imports, not to a firm's location decision. Conflict reduction is a political benefit unrelated to firm investment decisions. Fiscal bargaining power concerns government negotiations, not firm strategy.

The correct answer is increased inward FDI attracted by enlarged effective market size. This directly captures why a non-member firm chooses to locate production inside the bloc — to gain tariff-free access to the entire integrated market.

The question asks which benefit of integration explains why a non-member firm chooses to invest (build a factory) inside the bloc rather than export to it.

Trade creation refers to consumers switching from high-cost domestic production to cheaper member-country imports. This is a consumer-side benefit and says nothing about a non-member firm's decision to locate production inside the bloc.

Conflict risk reduction is a political benefit arising from interdependence between member states. It has no direct bearing on a multinational firm's decision about where to build a factory.

Collective bargaining power is relevant to trade negotiations with non-members, not to a foreign firm's investment decision. Fiscal policy negotiations do not determine where multinationals locate production.

Only increased inward FDI attracted by enlarged effective market size correctly identifies the mechanism: the firm invests inside the bloc to access the large, tariff-free combined market from a single location.

A member country cannot independently cut its interest rate during a recession because monetary policy is set centrally by the ECB for the entire Eurozone. The country has lost the ability to use a key policy tool it would otherwise control.

Loss of sovereignty occurs when countries cede control over policy decisions to a shared central authority as they deepen integration. Joining a monetary union transfers monetary policy — interest rate setting, money supply control — from the national central bank to the ECB, so an individual member can no longer respond unilaterally to its own domestic economic conditions.

The policy area in question is monetary policy (interest rates). This is distinct from fiscal policy (taxation and spending), which remains primarily under national control even within the Eurozone, and from trade policy, which is ceded at the customs union stage.

The correct answer is loss of national economic sovereignty over monetary policy. This is the defining cost illustrated when a Eurozone country cannot cut its own interest rate during a domestic recession.

The question describes a Eurozone country unable to cut its own interest rate and asks which cost of integration this illustrates.

Adjustment costs arise when domestic firms and workers are displaced by more efficient member-country competitors after tariffs are removed. The scenario is about monetary policy constraints, not industrial competition or job losses.

Regional disparities occur when investment concentrates in wealthier core regions rather than spreading evenly. The scenario describes a country-wide monetary policy constraint, not a geographical distribution of investment.

Trade diversion occurs when integration causes imports to switch from a cheaper non-member source to a more expensive member source. This is a trade welfare concept and is entirely unrelated to interest rates or monetary policy.

The remaining option, loss of national economic sovereignty over monetary policy, is precisely what the scenario illustrates: the country's inability to independently set its interest rate because that power has been transferred to the ECB.

The scenario describes: (1) domestic textile firms closing because they cannot compete with tariff-free member-country imports (trade creation at work), and (2) displaced workers unable to find jobs because their skills do not match the demands of growing sectors.

Adjustment costs are the short-run costs borne by specific firms, workers, and communities when integration exposes previously protected domestic industries to competition. Structural unemployment is the specific form of unemployment that results when displaced workers' skills do not match available vacancies — which is exactly what the scenario describes.

This is not a sovereignty issue (no policy-making power is being discussed). It is not trade diversion (the imports are from members, and no cheaper non-member source is being displaced). It is not regional disparity, which refers to FDI concentration, not to industry-specific job losses from competition.

The correct answer is adjustment costs including structural unemployment in uncompetitive industries, because the scenario precisely describes the harm integration imposes on firms and workers in sectors that cannot compete once tariff protection is removed.

The question asks which cost of integration is illustrated by domestic textile firm closures and workers with non-transferable skills who remain unemployed.

Loss of sovereignty refers to governments losing independent control over policy tools like tariffs or interest rates. The scenario focuses on workers and firms, not on governments' policy limitations, so this is not the right answer.

Trade diversion occurs when integration causes imports to shift from a lower-cost non-member to a higher-cost member. The scenario describes domestic firms being outcompeted by member-country imports, which is trade creation, not trade diversion.

Regional disparities relate to investment clustering in wealthier regions due to agglomeration effects. The scenario is about job losses and skills mismatch in a specific industry, not about where investment flows across regions.

Only adjustment costs including structural unemployment in uncompetitive industries correctly captures the scenario: firms close because they lose tariff protection, and workers face unemployment because their textile-specific skills are not easily redeployed elsewhere.