Summary Econimics book Chapter 22, Summaries of Global Economics

Summary of chapter 22 of econimics

Typology: Summaries

2024/2025

Uploaded on 05/15/2026

benedikt-pumberger
benedikt-pumberger 🇺🇸

6 documents

1 / 9

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
The Economy — CORE Textbook
Chapter Summary: Unit 22 — Economics, Politics, and Public Policy
UNIT 22
Economics, Politics, and Public Policy — A democratic government in a capitalist economy can promote
improved living standards, with gains fairly shared. Often, though, this does not happen.
Opening: Cyril Ramaphosa and South Africa
• The unit opens with Cyril Ramaphosa — trade union leader turned billionaire turned President of
South Africa — as a lens for understanding how political power shapes economic outcomes and vice
versa.
• Under apartheid, black South Africans were excluded from voting, skilled jobs, and quality public
services. In the late 1980s per capita income of black African families was roughly 11% that of white
families — a gap frozen for at least 50 years.
• Figure 22.1 (old-age pensions by racial group, 1965–2009) shows apartheid in numbers: in 1975 a
white pension was more than seven times a black pension. Pension equalisation was achieved in early
1993, before the first democratic election, as one of apartheid's last concessions.
• After the 1994 democratic transition, blacks gained access to skilled jobs, desegregated schools, and
infrastructure — but the Gini coefficient for income rose from 0.66 (1993) to 0.70 (2008), the highest
major-economy reading in the world. Inequality within racial groups grew sharply, with a new black elite
pulling away from the rest.
• Key puzzle this unit addresses: if democratic governments can fix market failures and reduce
unfairness, why do inefficiencies and inequalities persist even in democracies?
22.1 The Government as an Economic Actor
• Governments are economic actors alongside firms and households. They tax, spend, regulate, and
provide public goods — all of which shape economic life as directly as investment or consumption
decisions.
• Governments have accomplished things markets alone cannot: near-elimination of elderly poverty in
rich countries since the 1960s; reduced business-cycle volatility through automatic stabilisers; dramatic
falls in child mortality through 19th-century sanitation and water-supply investment.
• What makes government unique among actors: it holds a monopoly on the legitimate use of force
within a territory. It can imprison people, collect taxes under threat of penalty, and override property
rights in limited, defined circumstances (e.g. 'eminent domain' in the US; 'compulsory purchase orders'
in the UK).
• Because governments hold coercive power AND must serve citizens' rights, they face a dilemma: the
same power needed to solve collective problems is the power that can be abused for private gain (e.g.
Louis XIV building Versailles; Felix Houphouet-Boigny's $7–11bn personal fortune in Ivory Coast;
Ceauescu's gold-tiled palaces).
• Well-governed societies constrain this abuse through democratic elections (which can remove bad
governments) and institutional checks and balances / constitutional limits (which prevent governments
from acting arbitrarily even when in power).
• Figure 22.2 (UK total tax revenue as % of GDP, 1500–2021): government size rose from ~3% of GDP
before 1650 to ~40% after WWII. Key drivers: wars (Seven Years War, Napoleonic Wars, WWI, WWII),
the creation of social insurance after 1928 (universal suffrage), and the post-war welfare state.
• Government policy instruments to correct market failure and unfairness: (1) Incentives —
taxes/subsidies to alter costs-benefits of activities with externalities; (2) Regulation — direct rules on
pf3
pf4
pf5
pf8
pf9

Partial preview of the text

Download Summary Econimics book Chapter 22 and more Summaries Global Economics in PDF only on Docsity!

The Economy — CORE Textbook

Chapter Summary: Unit 22 — Economics, Politics, and Public Policy

UNIT 22

Economics, Politics, and Public Policy — A democratic government in a capitalist economy can promote improved living standards, with gains fairly shared. Often, though, this does not happen.

Opening: Cyril Ramaphosa and South Africa

  • The unit opens with Cyril Ramaphosa — trade union leader turned billionaire turned President of South Africa — as a lens for understanding how political power shapes economic outcomes and vice versa.
  • Under apartheid, black South Africans were excluded from voting, skilled jobs, and quality public services. In the late 1980s per capita income of black African families was roughly 11% that of white families — a gap frozen for at least 50 years.
  • Figure 22.1 (old-age pensions by racial group, 1965–2009) shows apartheid in numbers: in 1975 a white pension was more than seven times a black pension. Pension equalisation was achieved in early 1993, before the first democratic election, as one of apartheid's last concessions.
  • After the 1994 democratic transition, blacks gained access to skilled jobs, desegregated schools, and infrastructure — but the Gini coefficient for income rose from 0.66 (1993) to 0.70 (2008), the highest major-economy reading in the world. Inequality within racial groups grew sharply, with a new black elite pulling away from the rest.
  • Key puzzle this unit addresses: if democratic governments can fix market failures and reduce unfairness, why do inefficiencies and inequalities persist even in democracies?

22.1 The Government as an Economic Actor

  • Governments are economic actors alongside firms and households. They tax, spend, regulate, and provide public goods — all of which shape economic life as directly as investment or consumption decisions.
  • Governments have accomplished things markets alone cannot: near-elimination of elderly poverty in rich countries since the 1960s; reduced business-cycle volatility through automatic stabilisers; dramatic falls in child mortality through 19th-century sanitation and water-supply investment.
  • What makes government unique among actors: it holds a monopoly on the legitimate use of force within a territory. It can imprison people, collect taxes under threat of penalty, and override property rights in limited, defined circumstances (e.g. 'eminent domain' in the US; 'compulsory purchase orders' in the UK).
  • Because governments hold coercive power AND must serve citizens' rights, they face a dilemma: the same power needed to solve collective problems is the power that can be abused for private gain (e.g. Louis XIV building Versailles; Felix Houphouet-Boigny's $7–11bn personal fortune in Ivory Coast; Ceaunescu's gold-tiled palaces).
  • Well-governed societies constrain this abuse through democratic elections (which can remove bad governments) and institutional checks and balances / constitutional limits (which prevent governments from acting arbitrarily even when in power).
  • Figure 22.2 (UK total tax revenue as % of GDP, 1500–2021): government size rose from ~3% of GDP before 1650 to ~40% after WWII. Key drivers: wars (Seven Years War, Napoleonic Wars, WWI, WWII), the creation of social insurance after 1928 (universal suffrage), and the post-war welfare state.
  • Government policy instruments to correct market failure and unfairness: (1) Incentives — taxes/subsidies to alter costs-benefits of activities with externalities; (2) Regulation — direct rules on

behaviour (competition law, insurance mandates); (3) Persuasion/information — changing expectations so actors can coordinate; (4) Public provision — direct supply of goods or income transfers.

  • Figure 22.3 (policy table) maps ~20 real-world policies to the market failure or unfairness each targets, the policy objective, and the instrument used — from carbon taxes to minimum wages to R&D; subsidies. This table is the unit's master reference for how policy tools connect to economic problems.
  • Natural monopoly example: tap water or electricity transmission. A private monopoly sets price above marginal cost (economic inefficiency). A government monopoly may over-staff and serve political insiders (government failure). Neither solution is perfect; alternatives include private ownership under public regulation, or competitive tendering for time-limited franchises.
  • Economic accountability (market competition) and political accountability (elections) are parallel mechanisms: both discipline actors by threatening losses — profit loss vs election loss — if they fail those they serve.

22.2 Government Acting as a Monopolist

  • The 'government as monopolist' model treats the government as a single self-interested actor (a dictator) who collects taxes, provides a fixed level of public service, and keeps the rest as a political rent — income above what he could earn as a civilian.
  • The dictator faces a feasibility constraint: collecting too much tax triggers popular uprising or a coup, ending his time in office. He therefore trades off higher annual rent against a shorter expected duration in power.
  • The duration curve (Figure 22.5): plots expected years remaining in office (D, x-axis) against total annual tax revenue (T, y-axis). As T rises above the cost of the public service (C), expected duration falls — the curve slopes downward. D_max is reached when T = C (no rent-taking), leaving only random, non-performance removal risk.
  • Isorent curves (Figure 22.6): analogous to a firm's isoprofit curves. Each curve represents combinations of T and D that yield the same total expected rent (T − C) × D. Higher curves = higher rent. The curves are convex toward the origin; the dictator maximises rent at point B, where the highest isorent curve is tangent to the duration curve.
  • At the optimum (T, D): slope of the isorent curve equals slope of the duration curve — exactly as a profit-maximising monopolist sets MR = MC. The dictator is analogous to a monopolist 'selling' a public service at price T, with the duration curve acting as the demand curve.
  • Political rent: the excess of tax revenue over the cost of the public service, maintained by holding political power. Unlike innovation rents (which spur growth) or efficiency wages (which motivate workers), political rents are purely redistributive — resources consumed by the powerful at the expense of citizens.
  • Rent-seeking behaviour (spending to preserve political power, e.g. policing dissent) wastes resources that could otherwise produce goods or services.

22.3 Political Competition Affects How Government Acts

  • Just as market competition limits a firm's monopoly profits, electoral competition limits political rents. Greater competition flattens the duration curve: any tax increase now causes a larger drop in expected tenure, because voters can more easily remove the government.
  • Figure 22.8 shows two duration curves — steep (low competition / dictatorship) and flat (high competition / democracy). The feasible set of the governing elite shrinks as competition intensifies.
  • Empirical evidence — Besley and Case (1995): US state governors in their first term (facing re-election) behaved almost identically regardless of party — both set taxes near the median voter's preference. In their second terms (term-limited, no re-election threat), Democrats raised taxes and Republicans cut minimum wages. Electoral competition compresses policy divergence.
  • The beach analogy: bathers are spread evenly along a beach (= voters along a left-right political spectrum). Two ice-cream sellers (= parties) each try to maximise customers. Each seller has an incentive to move toward the other and capture more of the market — until both converge at the centre. This is the unique Nash equilibrium.
  • The median voter: the citizen at the exact centre of the distribution. She benefits most from platform convergence: both parties offer her near-ideal policies. She is also a 'swing voter' — small preference shifts by the median voter cause both parties to reposition, unlike voters far from the centre.
  • Real-world illustrations of convergence: UK Labour and Conservative parties have governed at similar total spending levels since WWII (Figure 22.2); Kerala alternates between Congress and Communist parties but maintains the same public-service priorities.

22.7 A More Realistic Model of Electoral Competition

  • The basic median voter model assumes everyone votes, voters are evenly distributed, parties care only about winning, and winning is zero-sum. Removing each assumption changes the predicted equilibrium.
  • Voter abstention: if the poorest voters — who benefit most from public spending — are least likely to vote, both parties' optimal platforms shift rightward (toward wealthier, more reliable voters), systematically under-serving the poor.
  • Money in politics: parties also compete for campaign contributions and volunteer effort. If wealthy donors or organised groups offer money/activities proportional to how closely a platform serves their interests, both parties are pulled toward those donors' preferred positions — away from the median voter.
  • Non-uniform voter distribution: if voters cluster at the left and right extremes with few in the centre, both parties have incentives to move away from the centre to lock in their base — producing polarisation rather than convergence.
  • Party leaders have genuine policy preferences: they are willing to sacrifice some votes to adopt positions they believe in, shifting equilibrium platforms away from the pure median voter prediction.
  • Albert Hirschman (1915–2012) on exit vs voice: markets discipline through exit (customers leave); democracies discipline through voice (citizens protest and campaign). Hirschman argued economists over-valued exit and under-valued voice. Easy exit can undermine voice by removing the most engaged citizens from an institution — making monopolies and public services perform worse, not better.
  • Figure 22.12 unifies the unit's models: in ideal democracy (flat duration curve) political rents = 0 and T = C, exactly as perfect competition eliminates economic profits and forces P = MC. Dictatorship corresponds to monopoly pricing.

22.8 The Advance of Democracy

  • Figure 22.13 (democracy timeline, 1890–2020): democracy — defined by all three criteria including women's suffrage — is a recent invention. New Zealand was first (c.1893). Two waves followed: post-WWI/Russian Revolution (tripled democracies in under a decade) and post-WWII decolonisation. Many countries (South Africa 1994, Mexico 2000) are very recent additions.
  • The extension of suffrage was driven partly by fear among the wealthy: industrial strikes, the 1848 European revolutions, and Marx's Communist Manifesto all suggested that denying political rights was becoming dangerous. Lowell, Massachusetts school committee (1846): universal schooling as 'our surest safety against internal commotions'.
  • Who counts as enfranchised matters enormously: the US gets a 'complicated' status because black voters were disenfranchised in many states until 1965; Australia likewise for indigenous Australians until 1962; Switzerland for women until 1971.
  • Modern undemocratic countries (e.g. Russia) typically fail not because of voter exclusion but because the rule of law and civil liberties are absent — elections exist but are not free or fair.
  • Even countries classified as democratic can diverge from the ideal: in the US, the presidential winner in 2000 and 2016 received fewer popular votes than their opponent (electoral college anomaly), and private campaign contributions from wealthy donors create systematic inequality of political influence.
  • Figure 22.14 (government spending patterns, Finland/US/South Korea, 2019): Finland spends 53% of GDP; US 38%; South Korea 34%. Finland allocates far more to social protection and health; the US more to military; South Korea more to economic affairs. Differences reflect political institutions, history, and the power of different voter coalitions.

22.9 Varieties of Democracy

  • Democracies differ along two axes (Figure 22.15): (1) democratic accountability — does a poorly performing government actually lose elections? (2) non-electoral transfer of power — are coups, assassinations, or constitutional crises rare? Strong democracies score well on both; Germany is the benchmark example.
  • Singapore: one party has ruled since 1959 — high stability, but weak democratic accountability because press freedom and opposition rights are restricted, making electoral transfer nearly impossible regardless of performance.
  • Italy: strong democratic accountability (bad governments removed) but weak on the second axis — governments also fall through parliamentary disputes and presidential dissolution, not only elections.
  • Pakistan: weak on both axes — governments unresponsive to voters and three successful military coups in its history.

22.10 Democracy Makes a Difference

  • The extension of voting rights to virtually all adults caused governments to shift spending toward public services and transfers that benefit the poor — redistributing resources in ways that would not have occurred under restricted suffrage.
  • Women's suffrage and child health (Grant Miller, 2008 natural experiment): US states enfranchised women at different times (1869–1920), enabling before/after comparisons. Enfranchisement boosted social service spending by 24% with no effect on other areas; child deaths fell 8–15%, preventing ~20,000 deaths per year — primarily through publicly funded door-to-door hygiene campaigns.
  • Figures 22.16 and 22.17: countries with longer democratic history (Denmark, Sweden, Netherlands, Norway, Finland) work fewer annual hours and have lower disposable income Gini coefficients. The Nordic countries that were among the earliest to extend full suffrage now have the highest equality.
  • Hayek's concern (Road to Serfdom): larger government would undermine democracy and the rule of law. The evidence does not support this: the countries highest-ranked on rule of law (Norway, Finland, Sweden, Denmark, Netherlands) are exactly the countries with the largest governments relative to GDP.

22.11 A Puzzle: The Persistence of Unfairness and Market Failures in Democracies

  • Central puzzle: if democratic governments can in principle fix market failures and reduce unfairness, why do so many inefficiencies and inequalities persist even in functioning democracies?
  • Three conditions must all hold for a policy to be implemented: (1) economic feasibility — the policy must produce a stable new Nash equilibrium; (2) administrative feasibility — the government must have the capacity to implement it; (3) political feasibility — those controlling policy must have the will and interest to adopt it.
  • South Africa remains one of the world's most unequal countries despite 30+ years of democracy, with over 25% unemployment — illustrating how all three barriers can persist even after democratic transition.
  • Small-group advantage: concentrated interests (e.g. 500 clothing workers losing €2,000 each from import tariff reduction) organise and lobby easily; diffuse interests (2 million consumers gaining €1 each) do not. Policy systematically favours concentrated interests even when the total cost to society exceeds the total benefit.
  • Wealth amplifies political voice via four channels: investment decisions (can threaten capital flight); campaign donations (buys access); media ownership (shapes public debate); lobbyists (professional influence over officials). Result: economic inequality feeds political inequality, which in turn reinforces economic inequality.
  • Kalla and Broockman experiment (2015): congressional staffers were far more likely to grant meetings to constituents who identified themselves as donors (12.5% success) than to ordinary constituents (2.4% success) — a randomised test that demonstrates money buying access, not just correlation.
  • Gender and political representation: in India, randomly reserving village council leadership positions for women increased spending on services women prioritise (water wells), reduced bribery, and even shifted men's unconscious attitudes toward female leadership — demonstrating that representation shapes both policy and culture.
  • Chile continued (Figures 22.20a/b): Allende's program was defeated by both barriers. Economically: private investors would not invest, causing stagnation. Politically: the armed forces — backed by businesses and the US CIA — staged a 1973 coup, replacing him with General Pinochet (stocks surged immediately). After the 1988 referendum restored democracy, stocks fell again — the stock market as a real-time register of who the wealthy expect to govern.

22.15 Policy Matters and Economics Works

  • The three feasibility conditions explain why governments fail — but also why outcomes differ so much across countries with similar incomes: these constraints are not fixed by nature, they are shaped by institutions and political choices.
  • CO2 emissions comparison: Sweden, the US, and Australia have similar per capita incomes but the US and Australia emit roughly three times as much CO2 per capita as Sweden. Economic and administrative feasibility are similar in all three. The gap is political: fossil fuel lobbies have far more influence in the US and Australia.
  • Inequality comparison: Germany and the US have had similar per capita GDP growth over 40 years, but Germany has a much lower Gini for disposable income. Nordic countries are more equal still. These differences arise from policy choices, not economic fundamentals.
  • Education performance (PISA): Singapore and the US have comparable per capita incomes, but Singapore's average maths score is 20% higher; the median US student would rank in the bottom quarter of Singapore or Japan. Policy choices about schooling systems — not income — explain the gap.
  • James Heckman's research: cognitive and socio-emotional skills form in early childhood and depend heavily on family environment. Growing up poor deprives children of these foundations. Early childhood interventions (enriched pre-school, home visits) have lasting effects on outcomes and are being scaled in Colombia, Jamaica, Chile, and India.
  • Main conclusion: for most countries, far more can be done to address market failures and unfairness than currently is being done. The differences are primarily about political will and institutional design, not fundamental economic constraints.

22.16 Conclusion

  • Politics determines 'who gets what, when and how' (Lasswell) — but it is not zero-sum. Well-designed policy can enlarge the economic pie (China's poverty reduction; 19th-century sanitation) as well as distribute it more fairly.
  • Economics provides tools to design feasible policies and can shape what is politically possible by improving public understanding of what can and should be done. The capitalist and democratic revolutions jointly produced the system most readers inhabit — and continue to change it.

Key Concepts

Government (State) The only body within a geographic territory that can legitimately use force — including police and legal coercion — to enforce its decisions on citizens.

Governing Elite The top government officials and legislative leaders unified by a common interest (e.g. party membership), treated in the model as a collective actor analogous to the dictator.

Democracy A political system defined by rule of law, civil liberties, and inclusive/fair elections in which the losing party leaves office peacefully.

Political Institutions The formal and informal rules of the game that determine who holds power and how it is exercised in a society.

Political Rent Income received by a leader above their next-best civilian alternative, existing solely because they hold a position of political power — not because they create economic value.

Economic Accountability Accountability achieved through market competition: firms that overcharge or underperform lose customers and eventually fail.

Political Accountability Accountability achieved through political processes — primarily elections — that allow citizens to remove governments that fail to serve their interests.

Democratic Accountability The specific form of political accountability in which elections are the primary mechanism for removing underperforming governments.

Duration Curve A model tool plotting a government's expected remaining time in office (x-axis) against total annual tax revenue (y-axis); slopes downward because higher taxes increase the risk of removal.

Isorent Curve A curve showing all combinations of tax level and expected duration that yield the same total expected political rent; analogous to a firm's isoprofit curve.

Median Voter Model A model predicting that two competing parties converge to identical platforms appealing to the voter in the exact middle of the political preference distribution, because moving away from the centre costs more votes than it gains.

Market Failure A situation in which markets allocate resources in a Pareto-inefficient way, leaving unrealised gains from trade or imposing uncompensated costs on third parties.

Government Failure A failure of political accountability in which government action produces worse outcomes than could be achieved — through corruption, misaligned incentives, or poor information.