Change in Power and Authority

SECTION 1

Historical Context & Motivation

The question of how political power changes hands is arguably the central problem of comparative politics. Throughout history, states have oscillated between periods of stability and dramatic upheaval, and understanding these transitions is essential for analyzing the six countries studied in the AP Comparative Government course: China, Iran, Mexico, Nigeria, Russia, and the United Kingdom. Each of these states has experienced fundamentally different pathways of political change—from violent revolution to negotiated democratization to authoritarian consolidation—and these divergent histories shape their current institutional arrangements and political cultures.

Changes in power and authority can be understood along two axes: the mechanism of change (how the transfer occurs) and the scope of change (how deeply the political system is restructured). A military coup replaces leaders but may leave institutional structures intact, while a full-scale revolution can reshape the entire social, economic, and political order. Comparative analysis requires distinguishing between these dimensions to explain why some transitions lead to stable democracies while others produce new forms of authoritarianism.

1688

England's Glorious Revolution

Parliament replaces King James II with William and Mary, establishing parliamentary sovereignty and constitutional monarchy—a model of incremental, elite-driven regime change.

1917

Russian Revolution

The Bolsheviks overthrow the Provisional Government, creating the Soviet Union and establishing a single-party communist state that would endure for over seven decades.

1949

Chinese Communist Revolution

Mao Zedong's CCP defeats the Nationalists, founding the People's Republic of China and initiating radical social transformation under Marxist-Leninist ideology.

1979

Iranian Revolution

A broad coalition topples Shah Pahlavi, but Ayatollah Khomeini consolidates power into a theocratic republic—illustrating how revolutions can produce unexpected regime types.

2000

Mexico's Democratic Transition

Vicente Fox's election ends 71 years of PRI dominance, completing a gradual democratization process driven by electoral reform and civil society mobilization.

These milestones raise a fundamental question for comparative analysis: what conditions determine whether political change leads to democratization, authoritarian consolidation, or state fragmentation? The AP exam expects you to analyze these dynamics across all six course countries, connecting historical trajectories to contemporary institutional arrangements.

SECTION 2

Core Principles & Definitions

Before analyzing specific country cases, it is essential to establish the conceptual vocabulary that comparative political scientists use to categorize and explain changes in power and authority. The AP course distinguishes between several types of political change based on their speed, scope, and the degree to which they restructure the relationship between state and society.

Revolution

A rapid, fundamental transformation of the political system, often accompanied by mass mobilization and violence. Revolutions replace not just leaders but the entire regime type, as seen in China (1949) and Iran (1979).

Coup d'État

A sudden, often military-led seizure of power that replaces leadership without necessarily altering the broader political structure. Nigeria experienced multiple military coups between 1966 and 1993.

Gradual Reform

Incremental institutional changes that cumulatively transform the political system over time. The UK's evolution from absolute monarchy to parliamentary democracy exemplifies centuries of gradual reform.

Democratization

The transition from authoritarian to democratic governance, involving free elections, rule of law, and civil liberties. Mexico's democratization occurred through negotiated electoral reforms from the 1980s to 2000.

Authoritarian Backsliding

The erosion of democratic institutions and norms, often through legal or constitutional means. Russia's trajectory under Putin—centralizing power while maintaining electoral façades—illustrates this pattern.

Two additional concepts are critical for the AP exam. Legitimacy refers to the belief among citizens that the government has the right to rule, and it can derive from traditional authority (hereditary monarchs), rational-legal authority (constitutions and elections), or charismatic authority (a compelling leader's personal appeal). When legitimacy erodes—through corruption, economic failure, or repression—the conditions for political change intensify. Political culture shapes how populations respond to crises of legitimacy: societies with strong civic traditions may push for democratic reform, while those with histories of authoritarian rule may accept new strongmen.

✦ KEY TAKEAWAY

KEY TAKEAWAY

SECTION 3

Visual Explanation: Pathways of Political Change

This flowchart illustrates the three primary pathways through which political change occurs in the AP course countries. Starting from a crisis of legitimacy at the top, the diagram branches into revolution (far left), coup d'état (center), and gradual reform (right), each leading to different regime outcomes. Notice that all pathways converge on a common set of factors that determine whether the resulting regime stabilizes or faces further instability.

The diagram above captures a central analytical framework for the AP exam. When confronted with a free-response question about political change, begin by identifying the mechanism (revolution, coup, or reform), then trace the consequences through to regime outcomes. The AP exam frequently asks students to compare two countries that followed different pathways—for example, contrasting Iran's revolutionary transformation with Mexico's gradual democratization—and to explain how the mechanism of change shaped the resulting political institutions.

SECTION 4

Mechanisms of Change: How Power Transfers

Sources of Legitimacy and Their Vulnerability

Max Weber's typology of legitimate authority provides the analytical foundation for understanding why political change occurs. Traditional authority derives from long-standing customs and hereditary succession, as in pre-revolutionary Iran under the Shah or pre-modern monarchies. Charismatic authority rests on the extraordinary personal qualities of a leader—Mao Zedong and Ayatollah Khomeini both wielded this form of power during revolutionary moments. Rational-legal authority is grounded in constitutions, laws, and bureaucratic procedures, as in the UK's parliamentary system or Mexico's post-2000 democratic framework. Each form of legitimacy has characteristic vulnerabilities: traditional authority erodes when modernization disrupts social hierarchies, charismatic authority dissipates when the leader dies or fails, and rational-legal authority weakens when institutions become corrupt or unresponsive.

Structural Conditions for Political Change

Political scientists have identified several structural conditions that make political change more likely. Economic crisis is one of the most powerful catalysts: the collapse of oil prices contributed to Nigeria's political instability, while economic mismanagement weakened the Shah's legitimacy in Iran. Elite fragmentation occurs when the ruling coalition splits, creating openings for challengers—a dynamic visible in Mexico's PRI as reformists clashed with hardliners through the 1990s. External pressure from international organizations, foreign governments, or global economic forces can accelerate or inhibit transitions. Finally, civil society mobilization—the activation of social movements, labor unions, and civic organizations—provides the mass pressure that makes change possible, as seen in Iran's revolutionary coalition of students, clergy, and merchants.

This causal model shows how structural conditions (economic crisis, elite fragmentation, external pressure, and civil society mobilization) converge to produce a legitimacy crisis, which then triggers one of three types of political change. Intervening variables—including military loyalty and ethnic cleavages—shape which pathway is followed.

SECTION 5

Country-by-Country Analysis

The AP Comparative Government exam requires specific country knowledge. The following table synthesizes the key political transitions for each of the six course countries, identifying the type of change, the primary causes, and the resulting regime characteristics. Mastering this comparative framework is essential for both MCQ and FRQ success.

Summary of political transitions across the six AP course countries

Country	Key Transition(s)	Type of Change	Resulting Regime
China	1949 Communist Revolution; 1978 Deng's economic reforms; 2012– Xi's consolidation	Revolution → Reform from above → Authoritarian tightening	Single-party authoritarian state with market economy
Iran	1979 Islamic Revolution; post-2009 Green Movement suppressed	Revolution; failed reform movement	Theocratic republic with elected and unelected institutions
Mexico	1910 Revolution; 1980s–2000 gradual democratization; 2000 PAN victory	Revolution → one-party dominance → gradual democratization	Federal presidential democracy (with ongoing challenges)
Nigeria	1960 Independence; multiple coups (1966–93); 1999 Fourth Republic	Decolonization → military coups → democratic transition	Federal presidential democracy (fragile, with ethnic/religious tensions)
Russia	1917 Revolution; 1991 USSR collapse; 2000s Putin consolidation	Revolution → collapse → democratic transition → authoritarian backsliding	Authoritarian system with electoral façade (hybrid regime)
UK	1215 Magna Carta; 1688 Glorious Revolution; 1832–1928 Reform Acts; devolution 1997	Centuries of gradual reform and institutional evolution	Parliamentary democracy; uncodified constitution; constitutional monarchy

EXAM TIP

SECTION 6

Worked Example: Comparing Iran and Mexico

Consider this typical AP FRQ prompt: Compare how political change occurred in Iran and Mexico, and explain how the type of change affected the resulting political institutions in each country. The following worked example demonstrates how to construct a high-scoring comparative response.

Step 1 — Identify the Type of ChangeIran experienced a revolution in 1979 that completely replaced the monarchical system with a theocratic republic. Mexico, by contrast, underwent gradual democratization from the 1980s to 2000, transitioning from one-party dominance under the PRI to competitive multiparty democracy through a series of electoral reforms.

Iran = revolution; Mexico = gradual reform/democratization

Step 2 — Explain the Structural CausesIn Iran, a combination of rapid modernization under the Shah, the repression of political opposition by SAVAK (the secret police), and the Shah's perceived dependence on the United States created broad-based discontent across social classes. Ayatollah Khomeini's charismatic authority unified a diverse coalition of students, bazaari merchants, clerics, and leftists. In Mexico, the PRI's corporatist system began losing legitimacy due to economic crises (particularly the 1982 debt crisis and 1994 peso crisis), rising demands for genuine electoral competition, and pressure from both domestic civil society and international organizations. However, because Mexico's elites had institutional channels for negotiation, change occurred through reform rather than revolution.

Step 3 — Analyze Institutional ConsequencesIran's revolutionary origins produced a unique dual institutional structure: elected bodies (the president, Majles) coexist with unelected clerical institutions (the Supreme Leader, Guardian Council, Assembly of Experts). This structure reflects the revolutionary coalition's religious character and Khomeini's doctrine of velayat-e faqih (guardianship of the jurist). Mexico's gradual transition preserved the existing presidential federal system while adding genuine electoral competition. Institutions like the IFE (now INE)—an independent electoral commission—were created through negotiated reform, giving Mexico's democracy a technocratic, procedural character.

Revolutionary change → hybrid theocratic institutions; Gradual reform → strengthened democratic institutions within existing framework

Step 4 — Draw a Comparative ConclusionThe mechanism of political change fundamentally shaped the resulting regime type. Iran's revolutionary path concentrated authority in unelected religious institutions, limiting the democratic potential of its elected bodies. Mexico's incremental path preserved institutional continuity while expanding democratic participation, though challenges like corruption and cartel violence persist. This comparison illustrates a broader pattern: revolutions tend to produce more radical institutional restructuring, while gradual reforms preserve existing frameworks and expand participation within them.

SECTION 7

Comparing Types of Political Change

Each type of political change carries distinct advantages and risks. The following table summarizes the key characteristics, strengths, and limitations of the three main pathways, providing a framework for the comparative analysis the AP exam demands.

Comparative characteristics of revolution, coup, and gradual reform

Dimension	Revolution	Coup d'État	Gradual Reform
Speed	Rapid (weeks to months)	Very rapid (hours to days)	Slow (years to decades)
Scope	Comprehensive regime transformation	Leadership change; structures may persist	Incremental institutional modification
Mass Participation	High—requires popular mobilization	Low—elite/military-driven	Variable—elite negotiation with public pressure
Violence	Often high	Targeted but limited	Generally low
Stability Risk	High—power vacuums, counter-revolution	Moderate—cycle of coups possible	Lower—but reform may stall or reverse
AP Example	China 1949, Iran 1979, Russia 1917	Nigeria 1966–1993	UK (centuries), Mexico 1980s–2000

✦ KEY TAKEAWAY

KEY TAKEAWAY

SECTION 8

Connecting to Advanced Theoretical Frameworks

The AP course concepts of political change connect to broader theoretical debates in comparative politics. Understanding these frameworks deepens your analytical capacity and can distinguish strong FRQ responses.

AP Course Concept	Advanced Theoretical Framework	Key Insight
Revolution	Theda Skocpol's structural theory	Revolutions arise from state crises created by international military competition and domestic class conflict, not simply from grievances or ideology.
Democratization	Samuel Huntington's 'waves' theory	Democratization occurs in global waves (1820s, post-WWII, 1970s–90s), often followed by reverse waves of authoritarian retrenchment.
Authoritarian backsliding	Levitsky & Ziblatt's 'democratic erosion'	Democracies can die gradually through legal manipulation rather than dramatic coups—relevant to Russia's post-2000 trajectory.
Legitimacy and authority	Weber's typology of authority	Traditional, charismatic, and rational-legal authority each have characteristic vulnerabilities that create different conditions for political change.

Looking forward, contemporary comparative politics increasingly grapples with the phenomenon of hybrid regimes—political systems that combine democratic and authoritarian features, as seen in Russia and, to varying degrees, in Nigeria. These regimes challenge the traditional binary of democracy versus authoritarianism and require more nuanced analytical tools. The concept of competitive authoritarianism (Levitsky and Way) describes systems where elections exist but the playing field is so tilted that incumbent defeat is nearly impossible—a framework directly applicable to understanding Putin's Russia and, at times, aspects of Mexico's PRI-era politics.

SECTION 9

Practice Problems

Which of the following best distinguishes a revolution from a coup d'état?

Which of the following is the most accurate characterization of Mexico's political transition from the 1980s to 2000?

PROBLEM 3 — INTERMEDIATE

Explain how the concept of legitimacy relates to political change. In your response, (a) define legitimacy, (b) identify two different sources of legitimacy using specific AP course country examples, and (c) explain how a loss of legitimacy can lead to different types of political change.

PROBLEM 4 — APPLIED

Develop an argument about whether revolutions or gradual reforms are more likely to produce stable democratic governance. Use evidence from at least two AP course countries to support your argument.

PROBLEM 5 — CRITICAL THINKING

Study the following data and answer the questions below. Freedom House Democracy Scores (1=most free, 7=least free): | Country | 1990 | 2000 | 2010 | 2020 | |---------|------|------|------|------| | Mexico | 4.0 | 2.5 | 3.0 | 3.0 | | Russia | 5.5 | 4.5 | 5.5 | 6.5 | | Nigeria | 5.5 | 4.0 | 4.0 | 4.5 | (a) Identify the country that experienced the most significant improvement in its democracy score between 1990 and 2000. (b) Describe a trend visible in Russia's data from 2000 to 2020. (c) Using the data and your knowledge of comparative politics, explain why Mexico and Russia followed divergent trajectories despite both experiencing political transitions in the 1990s. In your response, reference specific political factors such as institutional reforms, elite behavior, or the role of political leaders. (d) Connect the divergence between Mexico and Russia to broader comparative politics concepts such as differences in civil society strength, institutional design, or historical political culture.