Singapore PSD probes civil servant MRT property claims

Public Service Division Initiates Review

Singapore's Public Service Division (PSD) is currently reviewing an academic working paper that suggests public officials may have disproportionately acquired residential properties close to future Mass Rapid Transit (MRT) stations prior to their public disclosure. The PSD stated on Monday, 14 September, that it is scrutinising the data and methodology presented in the paper.

A spokesperson for the department, which operates under the Prime Minister's Office, affirmed that any concerns regarding integrity are taken with utmost seriousness. The division has indicated that it will refer any issues to the Corrupt Practices Investigation Bureau (CPIB) if a material basis for such action is identified.

Research Alleges Disproportionate Purchases

The working paper, titled 'Do Social Norms Substitute for Enforcement? Evidence from Public Officials’ Home Purchases in Singapore', was published in September 2026 by the US-based National Bureau of Economic Research (NBER).

Authored by Tomasz Piskorski of Columbia University, Amit Seru and Chun Zhao of Stanford University, and Jian Zhang of the University of Hong Kong, the study examined housing transactions around planned expansions of Singapore's MRT system.

The researchers reported finding a higher intensity of home purchases near planned MRT stations by civil servants compared to a control group of non-civil servants with similar demographic and housing consumption patterns.

This effect was observed primarily one to two years before public announcements and was concentrated among mid-level officials and agencies linked to rail planning.

Methodology and Scope of the Academic Paper

The authors commenced their study by compiling private property transactions from legal filings in Singapore. They then cross-referenced buyers with the Singapore Government Directory Interactive, an online database of public officers, to identify civil servants and track their transaction histories.

The analysis focused on purchases made near MRT stations that were planned but not yet publicly announced, specifically around the announcement dates. The paper suggests that this pattern generated 'meaningful private gains' and also extended to relatives of civil servants, which the authors interpret as consistent with information leakage.

It is important to note that the NBER published this as a working paper, meaning it is circulated for discussion and comment and has not undergone peer review or formal review by the NBER board of directors.

Implications for Public Sector Accountability

The Public Service Division's ongoing examination of this research will determine the immediate next steps for regulatory oversight. A decision on whether to refer the matter to the Corrupt Practices Investigation Bureau is expected in the coming months.

This process will be a key indicator of how Singapore addresses potential information asymmetry in its property market and reinforces public sector accountability. The outcome will be closely watched by investors and policymakers for its wider implications on governance standards and transparency within Asia's public administration.