New Simulation Suggests UNSC Reform Models May Worsen Deadlock

Analysis by the Better Order Project indicates most proposed Security Council expansions increase veto frequency and delay decisions.
Key points
- Simulation shows G4 and IGN models increase veto frequency and deadlock probability significantly.
- Better Order Project model reduces effective vetoes per decade from 18.4 to 8.2.
- Some reforms risk turning the veto into a transactional political tool rather than a security brake.
A new simulation published by the Better Order Project suggests that most proposed reforms to the United Nations Security Council could exacerbate the body's current paralysis rather than resolve it. The analysis, released as world leaders gather in New York for High Level Week, challenges the prevailing assumption that expanding permanent membership will improve the Council's responsiveness to global crises.
According to the study, conducted by Trita Parsi and his team, the frequent use of the veto in recent years has deepened the Council's legitimacy crisis. The simulation compares several reform models, including the G4 proposal and the Intergovernmental Negotiations bridging model, against a new category of semi-permanent seats. The findings indicate that while greater representation is desirable, the structural changes in most models lead to slower decision-making and higher risks of stalemate.
Simulation Data Reveals Reform Risks
The Better Order Project utilized an AI-driven spatial voting model to project outcomes over a 50-year horizon. The results show that proposals adding six new permanent seats with veto powers, such as the G4 model, would increase effective vetoes per decade from 18.4 to 29.7. The Intergovernmental Negotiations bridging proposal showed similar negative trends, with deadlock probability rising from 45.2 percent to 56.5 percent.
In contrast, the model proposed by the Better Order Project, which introduces semi-permanent seats and restricts veto usage, appears to offer more favorable metrics. According to the simulation, this approach would reduce the number of effective vetoes to 8.2 per decade and lower the probability of deadlock to 28.1 percent. Decision speed also improved, dropping from 28.5 days to 21.0 days, suggesting a more functional mechanism for urgent security matters.
Veto Mechanism Faces Structural Threat
Beyond simple frequency counts, the simulation highlights a qualitative risk associated with certain reform packages. Some models that appear to enhance accountability may inadvertently transform the veto from an emergency security brake into a transactional political tool. The AI analysis predicted that in such scenarios, states might use veto threats to secure regional patronage or influence electoral cycles, thereby degrading the Council's authority to demand global compliance.
The full methodology and results are detailed in a report published on substack.com. The authors plan to present these findings at various panels during the upcoming week in New York. The debate now shifts from whether reform is necessary to which specific structural changes can actually restore the Council's capacity to act without falling into prolonged gridlock.
Diplomatic Implications For New York
As negotiations continue, diplomats must weigh the immediate political costs of expanding membership against the long-term functional risks identified in the simulation. The data suggests that without careful calibration of veto powers and seat classifications, the Council may face even more frequent deadlocks in the coming decades. The forward question remains how delegations will respond to evidence that popular reform ideas may have unintended negative consequences.






