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Working Paper
The Financial Origins of Non-Fundamental Risk
We formalize the idea that the financial sector can be a source of non-fundamental risk. Households' desire to hedge against price volatility can generate price volatility in equilibrium, even absent fundamental risk. Fearing that asset prices may fall, risk-averse households demand safe assets from leveraged intermediaries, whose issuance of safe assets exposes the economy to self-fulfilling fire sales. Policy can eliminate nonfundamental risk by (i) increasing the supply of publicly backed safe assets, through issuing government debt or bailing out intermediaries, or (ii) reducing the ...
Working Paper
The Replacement of Safe Assets: Evidence from the U.S. Bond Portfolio
The expansion in financial sector "safe" assets, largely in the form of structured products from the U.S. and the Caribbean, in the lead-up to the global financial crisis has by now been fairly well documented. Using a unique dataset derived from security-level data on U.S. portfolio holdings of foreign securities, we show that since the crisis, it is mostly the foreign financial sector that appears to have met U.S. demand for safe and liquid investment assets by expanding its supply of debt securities. We also find a strong negative correlation between the foreign share of the U.S. ...
Working Paper
The Demand for Short-Term, Safe Assets and Financial Stability: Some Evidence and Implications for Central Bank Policies
A number of researchers have recently argued that the growth of the shadow banking system in the years preceding the recent U.S. financial crisis was driven by rising demand for "money-like" claims--short-term, safe instruments (STSI)--from institutional investors and nonfinancial firms. These instruments carry a money premium that lowers their yields. While government securities are an important part of the supply of STSI, financial intermediaries also take advantage of this money premium when they issue certain types of low-risk, short-term debt, such as asset-backed commercial paper or ...
Discussion Paper
What Makes a Safe Asset Safe?
Over the last decade, the concept of “safe assets” has received increasing attention, from regulators and private market participants, as well as researchers. This attention has led to the uncovering of some important details and nuances of what makes an asset “safe” and why it matters. In this blog post, we provide a review of the different aspects of safe assets, discuss possible reasons why they may be beneficial for investors, and give concrete examples of what these assets are in practice.
Report
Fragility of Safe Asset Markets
In March 2020, safe asset markets experienced surprising and unprecedented price crashes. We explain how strategic investor behavior can create such market fragility in a model with investors valuing safety, investors valuing liquidity, and constrained dealers. While safety investors and liquidity investors can interact symbiotically with offsetting trades in times of stress, liquidity investors’ strategic interaction harbors the potential for self-fulfilling fragility. When the market is fragile, standard flight-to-safety can have a destabilizing effect and trigger a “dash-for-cash” by ...
Discussion Paper
How Can Safe Asset Markets Be Fragile?
The market for U.S. Treasury securities experienced extreme stress in March 2020, when prices dropped precipitously (yields spiked) over a period of about two weeks. This was highly unusual, as Treasury prices typically increase during times of stress. Using a theoretical model, we show that markets for safe assets can be fragile due to strategic interactions among investors who hold Treasury securities for their liquidity characteristics. Worried about having to sell at potentially worse prices in the future, such investors may sell preemptively, leading to self-fulfilling “market runs” ...
Working Paper
The Effect of Safe Assets on Financial Fragility in a Bank-Run Model
Risk-averse investors induce competitive intermediaries to hold safe assets, thereby lowering the probability of a run and reducing financial fragility. We revisit Goldstein and Pauzner (2005), who obtain a unique equilibrium in the banking model of Diamond and Dybvig (1983) by introducing risky investment and noisy private signals. We show that, in the optimal demand-deposit contract subject to sequential service, banks hold safe assets to insure investors against investment risk. Consequently, fewer investors withdraw prematurely, which reduces the probability of a bank run. Safe asset ...
Working Paper
What Drives U.S. Treasury Re-use?
We study what drives the re-use of U.S. Treasury securities in the financial system. Using confidential supervisory data, we estimate the degree of collateral re-use at the dealer level through their collateral multiplier : the ratio between a dealer's total secured funding and their outright holdings financed through secured funding. We find that Treasury re-use increases as the supply of available securities decreases, especially when supply declines due to Federal Reserve asset purchases. We also find that non-U.S. dealers' re-use increases when profits from intermediating cash are high, ...
Working Paper
International Dollar Flows
Using confidential Federal Reserve data, we study the factors driving U.S. banknote flows between the United States and other countries. These flows are a significant component of capital flows in emerging market economies, where physical U.S. currency functions as a safe asset and precautionary demand for U.S. banknotes is a form of flight to quality. Prior to the global financial crisis, country-specific factors, including local economic uncertainty, largely explain the volume and heterogeneity of the flows. Since the crisis, global factors, particularly, global economic uncertainty, ...
Working Paper
International Reserves and Rollover Risk
We study the optimal accumulation of international reserves in a quantitative model of sovereign default with long-term debt and a risk-free asset. Keeping higher levels of reserves provides a hedge against rollover risk, but this is costly because using reserves to pay down debt allows the government to reduce sovereign spreads. Our model, parameterized to mimic salient features of a typical emerging economy, can account for a significant fraction of the holdings of international reserves, and the larger accumulation of both debt and reserves in periods of low spreads and high income. We ...