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MDBs Are Becoming a New Global Safe Asset

News | 2026/08/29 11:01

MDBs Are Becoming a New Global Safe Asset

The Growing Importance of MDBs in the Global Financial System

Eric Berglof is the Chief Economist of the Asian Infrastructure Investment Bank. Despite geopolitical chaos, there is still some solace to be found in today’s capital markets. The foundations of the multilateral order may crack, but an interesting counter-trend is emerging in relatively calm corners of global finance: multilateral development banks (MDBs) are not only surviving but thriving. By their ability to attract loans on terms close to the yields of U.S. Treasury bonds, MDBs have formed a practically new class of risk-free assets that can help bolster the global financial system. Just consider the numbers. The average spread of MDB issuances over U.S. Treasury bonds has been halved from 10.8 basis points in the first half of 2025 to 5.4 in the first half of 2026. This is an extremely small difference, meaning that these bonds are perceived as practically as safe as U.S. Treasury bonds. The overall balance sheet of the MDB system remains stable, and demand for new issuances has been high. As the youngest member of the system, the Asian Infrastructure Investment Bank's recent issuance of a $2 billion bond with a five-year maturity was priced at just 3.6 basis points over U.S. five-year Treasury bonds. The demand for the issuance was also impressive, with order volumes reaching $13.9 billion, indicating strong investor interest.

However, this new financial structure is based on a fragile geopolitical backdrop. In recent years, attacks on the multilateral system have sharply intensified, leading some commentators to speak of the “death of multilateralism.” Some parts of the system, including the United Nations, are facing serious cuts in funding, while others have simply frozen. At the same time, the volume of official development assistance, whether provided bilaterally or multilaterally, is declining almost everywhere.

In these circumstances, MDBs appear surprisingly resilient, continuing to expand their lending volumes. While capital replenishment from member states may not happen immediately, no country has exited the MDB system. This may be partly due to the complexity of such a process, but it also reflects the fact that MDBs have responded to calls for reform. They have understood that their operations are based on trust — trust in their balance sheets, the quality of governance, and the stability of public support, which allows them to effectively mobilize resources and carry out large-scale lending.

That is why MDBs have undertaken the most ambitious capital adequacy reforms of the latest generation. An independent review of the capital adequacy frameworks of MDBs (CAF), conducted under the auspices of the G20, which examined 17 key proposals, has facilitated the optimization of the system's balance sheets, and the results are already visible. For example, the World Bank has reduced its equity-to-loan ratio from 20% to 18%, which has opened up an additional $70 billion in lending capacity for the coming decade. Similar figures, and even relatively higher results, can also be noted for other MDBs.

Overall, it is expected that the CAF reforms will create an additional $600-800 billion in lending capacity over the next decade. MDBs have also intensified cooperation with rating agencies, holding seven technical roundtables since 2023 to ensure that rating methodologies take into account their status as preferred creditors and historically low default rates.

The current combination of political pressure and financial innovation leads to a paradoxical outcome. Even in conditions where shareholders threaten to withdraw, multilateral development banks (MDBs) have strengthened their financial models and loosened balance sheet constraints. Their bonds are selling at nearly the same spread as Treasury bonds, not because geopolitical risks have diminished, but because the reforms undertaken have increased capital efficiency, while U.S. Treasury bonds themselves have become relatively riskier.

In fact, it is precisely the dysfunction that complicates multilateral cooperation that has made MDBs more attractive as a safe haven. Of course, there are obvious limitations on how much additional capital individual MDBs can free up through balance sheet optimization measures. After all, these institutions must reserve certain funds to respond to crises like the one created in the Middle East. Subsequent reforms will likely need to focus on implementing solutions at the level of the entire MDB system.

For now, the paradox is this: even as multilateralism faces an existential threat, the multilateral development banks created within this system have become the closest thing to a safe haven precisely because they have reformed faster than their political shareholders have retreated. In fact, the tools of multilateral development banks may become even more important if U.S. Treasury markets continue to exhibit instability. This is a welcome but quite unstable paradox. It is up to policymakers to ensure that it does not have tragic consequences.

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