Notes on Realism, Liberalism, and Global Power Dynamics

Realism, Threat Perception, and the Balance of Power

• Start with Mearsheimer (a leading realist) and the question of whether potential rivals are genuinely threatening; emphasis on variables that determine the degree of threat.
• Core distinction: intentions are often uncertain. Offensive realists argue that intentions cannot be known with confidence; it can be reasonable to escalate, and failing to do so risks wasted resources. In this view, realism offers prescriptions to restrain power and signal peaceful intent even when one is highly powerful.
• Key prescription from realism (as discussed): restrain your power, act selflessly on occasion to signal you are not a teachable moments threat to others.
• Balancing perspectives: avoid assuming rivals' motives; instead, consider motivations, constraints, and perspectives of others. This yields a more calibrated view of threat.
• Fundamental attribution error (from psychology) applied to IR: we tend to judge others’ behavior via dispositional (character) explanations rather than situational (circumstantial) factors.
  • Dispositional judgment example: if China takes an island, we might label them as inherently aggressive, expansionist, or authoritarian (a dispositional reading).
  • Situational judgment example: if China or a rival misses a class or retreats, we might attribute it to accident or external constraints (circumstantial reading).
• The fundamental division in psychology: dispositional (who you are) vs situational (the circumstances you face). The harsher judgment tends to be the internal, dispositional one—especially when the rival is perceived as a threat.
• When evaluating rivals, the liberal caution is to consider both situational constraints and dispositions, but avoid rushing to internal explanations that solidify a negative view.
• Practical takeaway: to avoid premature deterrence or escalation, weigh behavior against both sets of factors and look for underlying motivations and constraints rather than jumping to conclusions.
• Transition to hegemonic realism: explore how a single dominant power can organize international politics, and how the hierarchy can be coercive or benign depending on the hegemon’s behavior.

Hegemonic Realism and the Western Order

• Hegemonic realism describes periods where one state provides order in international politics, often shaping rules and institutions.
• The hegemon can be coercive or benign; the United States is often portrayed as a relatively benign dominant power in the post–Cold War era, providing security and enabling welfare programs in Europe.
• This system yields converging interests: stable security for Western states alongside welfare-state policies; less incentive for major balancing against the hegemon while the status quo persists.
• Public goods in international politics: the hegemon provides security services and other public goods that the system otherwise would not sustain.
• What could destabilize this hierarchy? A rising challenger capable of challenging the hegemon’s position, altering the balance of power.
• The unipolar moment and welfare state dynamics: Western Europe’s welfare models contrast with US leadership, often described within the unipolar framework post–Cold War.
• Realist takeaway: the presence of a dominant power can create stability, but the system remains vulnerable to challenges as power transitions occur.

Power Transition Theory (PST)

• Core idea: instability and the risk of conflict rise when a rising challenger approaches parity with the dominant state.
• Key metric: the gap between the dominant state’s capabilities and those of the rising challenger; as the challenger approaches parity, the probability of conflict increases.
• Historical metric examples:
  • GDP comparisons (nominal) vs. price-adjusted measures (PPP) to gauge relative power; PPP adjustments can change the perceived status of rising powers.
  • If you convert GDP into USD terms using exchange rates: GDP{nominal}^{USD} = GDP{local} imes ER
  • If you use PPP, you account for price level differences across economies: GDP{PPP}^{USD} = rac{GDP{local}}{PL{local}/PL{US}}
• Methodological note: power transition theory evaluates situational and material capabilities of the dominant state and the rising challenger; when the challenger gains parity or nears it, the risk of conflict rises.
• The Thucydides Trap: the classic scenario of a rising power and an established power leading to war, historically used to illustrate PST.
• Determinants of whether conflict occurs:
  • Whether the challenger is dissatisfied or revisionist vs reasonably satisfied with the current order.
  • If the challenger is satisfied, wars are less likely; if dissatisfied/revisionist, wars are more likely as both sides fear loss of status or security.
• Historical examples: Napoleon and Hitler are often cited as dissatisfied/r revisionist challengers; many cases of rising powers have led to conflict, though not all (e.g., some cases were peaceful under certain conditions or when nuclear deterrence was strong).
• Critical questions for analysis and papers:
  • What criteria should be used to measure a state’s level of dissatisfaction or revisionism?
  • How can a universal, comparable rule set be defined to assess satisfaction/dissatisfaction across states?
  • Is the system more prone to war when a challenger is dissatisfied, or are there counterexamples where broad support for the status quo reduces conflict?
• Modern relevance: PST remains popular in analysis of today’s potential power transitions; the current context includes Russia’s behavior and China’s growth, raising questions about whether the system will experience a peaceful adjustment or a major conflict.
• Important caveat: while the system’s “greatest stability” period is said to occur when a rising challenger is relatively satisfied, history shows mixed outcomes; thus, the model is a probabilistic warning, not a deterministic forecast.

Liberalism vs Realism: Cooperation, Institutions, and Democracy

• Liberal critique of realism: realism emphasizes distribution of power and conflict; liberals emphasize cooperation and the possibility of a rule-based order.
• Three core liberal foundations that enable cooperation:
  • Consent on shared rules and norms (the rule of law in international affairs).
  • Democratic values and democracy (democratic peace theories suggest democracies are more likely to cooperate and avoid war with other democracies).
  • Institutions (international organizations, regimes) that facilitate cooperation and monitoring of compliance.
• Liberal view on dynamics: even if states are diverse, cooperation emerges when there is alignment around rules, shared interests, and credible institutions.
• What liberalism brings to the table beyond realism: a focus on how cooperation can be sustained, how norms evolve, and how domestic political structures influence foreign policy.
• Important distinction: liberalism is not a call to abandon realism but to complement it by highlighting pathways to peaceful cooperation and the role of institutions and democracy.

Globalization, Economic Interdependence, and Security

• Two classic arguments for why economic interdependence can promote peace:
  1) The cost of conflict rises as integration deepens; wars become more costly for all sides, making territorial conquest less attractive.
  2) Global trade and financial links constrain states to play by the rules of the global market (e.g., WTO), reducing incentives to attack neighbors.
• Historical caution: the argument that trade makes war unlikely is not new; the 1911 bestseller The Great Illusion argued that trade would render conflict irrational, yet World War I occurred, highlighting that interdependence is not a panacea.
• Counterarguments: interdependence can create vulnerabilities and denial of strategic autonomy; dependencies in critical sectors can weaponize trade (supply chains, finance, tech).
• Recent debate on China and the United States:
  • Decades of optimistic engagement suggested that deeper integration would transform China and stabilize the system.
  • In the last decade, security elites began to worry about vulnerabilities in supply chains (e.g., arms-length dependencies on Chinese manufacturing) and the strategic implications of China’s tech rise.
  • The narrative shifted toward concerns about strategic competition and the possibility of decoupling or managed interdependence rather than unqualified cooperation.
• The limitations of interdependence as a stabilizer:
  • Interdependence can either promote peace or incentivize coercion and vulnerability exploitation, depending on how it is managed and what dependencies exist.
  • External shocks (sanctions, infrastructure disruptions, tech restrictions) can reframe interdependence from a stabilizing force to a source of strategic vulnerability.
• The Western model and universal norms: the liberal view historically assumed that Western democratic capitalism would become universal; in practice, other states can participate in the global economy while pursuing different political regimes and strategic aims.
• Final reflections on China and global power dynamics:
  • It is not automatic that engagement and openness will reform a rising power; instead, large economies can be both traders and nationalists (or even authoritarians) simultaneously.
  • A nuanced approach recognizes the potential for deep integration alongside selective resistance to rules or norms that conflict with national interests.
• Practical example mentioned: the university system (University of California and Cal State) as cultural reference points for how U.S. education, research collaboration, and ideas propagate globally, despite strategic competition.

Connecting the Dots: From Theory to Practice

• When studying current relations, anchor analyses in a few core questions:
  • How do you define and measure a state’s satisfaction with the current order?
  • What rules or norms would a universal set of criteria require to be applicable to all states?
  • How do domestic political dynamics (democracy, economic structure) shape foreign policy and responses to perceived threats?
• The central tension remains: stability may arise under a disciplined hierarchy with a benign hegemon, but rising challengers invariably test the order, and the outcome (war vs. peaceful transition) depends on many contingent factors.
• Reading prompts and preparation:
  • Expect questions on offensive vs defensive realism and the balance of threat; be ready to discuss how each framework explains state behavior under uncertainty.
  • Expect questions on liberal vs realist explanations of cooperation; be ready to articulate three liberal foundations and how institutions influence outcomes.
  • Expect questions that require applying PST to a hypothetical rising power; discuss what indicators you would monitor and what policy options could mitigate risk of conflict.
  • Expect questions that critique economic interdependence as a peace mechanism; provide examples of both stabilizing and destabilizing effects.

Key Terms, Concepts, and Quick References

• Offensive realism: power maximization; intentions are often unknowable; deterrence can fail if power is perceived as sufficient to dominate.
• Balance of threat realism: assess threat level based on the rival’s capabilities, intentions, and strategies, not just power.
• Fundamental attribution error (psychology): tendency to judge others by dispositional factors rather than situational constraints; applied to IR to caution against quick negative inferences about rivals.
• Dispositional vs situational judgments:
  • Dispositional: “they are aggressors.”
  • Situational: “they acted this way due to constraints or a particular context.”
• Hegemonic realism: stability under a single dominant power that provides public goods and security.
• Public goods in IR: security, stability, and other services provided by a hegemon that benefit the system as a whole.
• Unipolarity: a distribution of power where one state dominates globally.
• Power Transition Theory (PST): risk of conflict rises when a rising power approaches parity with the dominant state; focus on the dynamics of hierarchy and challengers.
• Thucydides Trap: the historical pattern where a rising power challenges an established one, often leading to war.
• Dissatisfied vs satisfied challenger: dissatisfaction increases the likelihood of conflict; satisfied challengers are likelier to pursue reform within the existing order.
• Liberalism in IR: cooperation, rule-based order, and the role of institutions, democracy, and interdependence.
• Three liberal foundations for cooperation:
  • Consent on rules and norms (institutions and regimes).
  • Democratic values and democratic peace tendencies.
  • Institutions that facilitate cooperation and monitor compliance.
• Globalization and interdependence: two sides—costs of conflict rise with interdependence, but interdependence can create vulnerabilities and strategic leverage for rivals.
• PPP vs nominal GDP: methods for measuring power and wealth across borders; PPP accounts for price level differences, often changing relative rankings.
  • Nominal GDP in USD: GDP{nominal}^{USD} = GDP{local} imes ER
  • PPP-adjusted GDP: GDP{PPP}^{USD} = rac{GDP{local}}{PL{local}/PL{US}}
• Big Mac (PPP) indicator: simple, intuitive measure of price level differences across countries (illustrative example used to explain PPP).