
Why This Question Matters
Authoritarian leaders rely on lower-level bureaucrats for information about society, but local officials can distort or filter that information before it reaches the center. Minh Trinh and Warren Wenzhi Lu ask when and why centralization reforms—designed to bypass local gatekeepers and improve information flow—succeed in reducing this distortion and when they fail.
Paired Comparison of China and Vietnam
The authors use a paired case comparison of two broadly similar one-party states, China and Vietnam, that pursued comparable centralization reforms intended to create skip-level reporting lines from lower-level bureaucrats to the central leadership. Rather than focusing on policy outputs alone, the study compares institutional arrangements and how authority over lower-level officials was structured in each country.
What Institutional Ambiguity Is—and Why It Matters
Institutional ambiguity refers here to uncertainty about whether and how skip-level reporting lines and supervisory relationships are formally established. Trinh and Lu argue that ambiguity can weaken local officials’ ability to assert a monopoly of authority over subordinate bureaucrats, making it harder for them to intercept or manipulate information that the center seeks to obtain.
Key Findings
Mechanism and Contribution
The study links variation in reform outcomes to the micro-level distribution of authoritative control inside the administrative hierarchy: when local officials can clearly enforce their control, central reforms that merely create reporting channels are insufficient. Institutional design that alters who holds de facto authority—sometimes via uncertainty about enforcement—can determine whether centralization reduces filtering and manipulation.
Implications for Scholars and Practitioners
The findings show that the success of centralization in authoritarian settings depends not only on the existence of formal rules but on how those rules interact with existing authority structures. For scholars of authoritarian politics and for policymakers studying administrative reform, the study highlights the importance of institutional detail—ambiguity can be a strategic feature that enables central leaders to bypass entrenched local gatekeepers without provoking direct confrontation.

| Institutional Ambiguity Enables Successful Centralization: Evidence from China and Vietnam was authored by Minh Trinh and Warren Wenzhi LU. It was published by Sage in CPS in 2025. |