Two-Level Games

What It Means in Practice

Robert Putnam's 1988 International Organization article 'Diplomacy and Domestic Politics: The Logic of Two-Level Games' formalized something diplomats had always known: every international negotiator bargains simultaneously with their foreign counterpart and with their own domestic ratification audience. Putnam labeled the international table Level I and the domestic table Level II.

A deal struck at Level I must fall within the 'win-set' — the range of outcomes acceptable to enough Level II actors (parliament, ratifying senators, key interest groups, coalition partners, public opinion) to be approved. If the negotiator returns home with a Level I deal outside the Level II win-set, the agreement collapses on ratification. This is what happened to the Treaty of Versailles in the US Senate, and arguably to the EU Constitution in 2005.

Why It Matters

The framework gives negotiators a precise way to talk about a problem they face every day. A smaller Level II win-set gives the negotiator credibility — 'my hands are tied, my parliament will never ratify this' — but raises the risk of no deal. A larger win-set means more room to maneuver but also more concessions the other side will demand.

Negotiators actively shape their own Level II win-sets. They brief select legislators, leak red lines to the press, line up domestic interest-group endorsements, or commission economic studies — all to convince their counterpart that the Level II constraint is genuine. The art is to keep the win-set small enough to be credible without making the negotiation impossible.

Synergistic Linkage

Putnam's most underappreciated insight is synergistic linkage: a deal that no Level II actor would have approved on its own can sometimes pass because it bundles concessions across issues. A trade negotiator may secure ratification of agricultural concessions only by linking them to manufacturing market access that auto unions want. Climate negotiators have used this for decades — bundling emission cuts with technology transfer and adaptation finance to assemble winning coalitions across very different Level II audiences.

Chief of Government Dilemmas

A chief of government often has Level I incentives that diverge from any single Level II faction. The leader's career incentive is the overall ratification, while individual factions optimize for narrow gains. This explains why heads of state sometimes accept Level I deals their own foreign minister or trade representative would never have signed — and why those deals occasionally fail anyway when factions defect.

Common Misconceptions

The framework is sometimes misread as saying democracies are weaker negotiators because they have to ratify. In fact, Putnam shows the opposite can be true: a credibly small win-set (a 'tied hands' advantage) lets democratic negotiators extract concessions autocrats cannot. The downside is that the same constraint can produce stalemates that autocracies bypass.

Another misconception is that Level II is only about domestic ratification. Putnam's framework also covers any audience the negotiator must answer to — coalition partners, governing party congresses, central bank governors, judicial review — anywhere the deal can be vetoed before it takes effect.

Real-World Examples

The 2015 TPP negotiations failed in part because Obama's narrow Level II win-set (Trade Promotion Authority constraints, Senate Finance Committee red lines, auto-state senators) collided with Asian partners' Level II demands on rules of origin and currency. The Iran JCPOA is a textbook two-level case: Obama needed the deal to survive a one-house veto override (a very specific win-set shape), and Rouhani needed it to survive Supreme Leader and IRGC opposition. NAFTA's renegotiation as USMCA was structured almost entirely around what Mexican AMLO, Canadian Trudeau, and US Trump could each get through their respective Level II audiences.