The Economics of Liquidity Lines Between Central Banks

Liquidity lines between central banks are a key part of the international financial safety net. In this review article, we lay out some of the economic questions that they pose. Research has provided answers to some of these questions, but many more require further research

Macroprudential Policy Under Uncertainty

We argue that uncertainty over the impact of macroprudential policy need not make a policymaker more cautious. Our starting point is the classic finding of Brainard that uncertainty over the impact of a policy instrument will make a policymaker less active. This result is challenged in a series of richer models designed to take into account the more complex reality faced by a macroprudential policymaker. We find that asymmetries in policy objectives, the presence of unquantifiable sources of risk, the ability to learn from policy, and private-sector uncertainty over policy objectives can all lead to more active policy

Central bank swap lines: evidence on the effects of the lender of last resort

Theory predicts that central-bank lending programs put ceilings on private domestic lending rates, reduce ex post financing risk, and encourage ex ante investment. This article shows that with global banks and integrated financial markets, but domestic central banks, then lending of last resort can be achieved using swap lines. Through them, a source central bank provides source-currency credit to recipient-country banks using the recipient central bank as the monitor and as the bearer of the credit risk. In theory, the swap lines should put a ceiling on deviations from covered interest parity, lower average ex post bank borrowing costs, and increase ex ante inflows from recipient-country banks into privately issued assets denominated in the source-country’s currency. Empirically, these three predictions are tested using variation in the terms of the swap line over time, variation in the central banks that have access to the swap line, variation in the days of the week in which the swap line is open, variation in the exposure of different securities to foreign investment, and variation in banks’ exposure to dollar funding risk. The evidence suggests that the international lender of last resort is very effective

Home values and firm behaviour

The homes of those in charge of firms are an important source of finance for ongoing businesses. We use firm level accounting data, transaction level house price data and loan level residential mortgage data from the UK to show that a £1 increase in the value of the residential real estate of a firm’s directors increases the firm’s investment and wage bill by £0.03 each. These effects run through smaller firms and are similar in booms and busts. In aggregate, the homes of firm directors are worth 80% of GDP. Using this, a back of the envelope calculation suggests that a 1% increase in real estate prices leads, through this channel, to up to a 0.28% rise in business investment and a 0.08% rise in total wages paid. We complement this with evidence on how a firm responds to changes in the value of its own corporate real estate; we find that, in aggregate, the residential real estate of directors is at least as important for activity. We use an estimated general equilibrium model to quantify the importance of both types of real estate for the propagation of shocks to the macroeconomy

The residential collateral channel

We present evidence on a new macroeconomic channel which we call the residential collateral channel. Through this channel, an increase in real estate prices expands firm activity by enabling company directors to utilise their residential property as a source of funds for their business. This channel is a key determinant of investment and job creation, with a £1 increase in the combined residential collateral of a firm’s directors estimated to increase the firm’s investment by £0.02 and total wage costs by £0.02. To show this, we use a unique combination of UK datasets including firm-level accounting data matched with transaction-level house price data and loan-level residential mortgage data. The aggregate value of residential collateral held by company directors (around 70% of GDP) suggests that this channel has important macroeconomic effects. We complement this with further evidence on the corporate collateral channel whereby an increase in real estate prices directly expands firm activity by enabling businesses to borrow more against their corporate real estate. An estimated general equilibrium model with collateral constrained firms is used to quantify the aggregate effects of both channels

Central bank swap lines

Swap lines between advanced-economy central banks are a new important part of the global financial architecture. This paper analyses their monetary policy effects from three perspectives. First, from the perspective of the central banks, it shows that the swap line mimics discount-window credit from the source central bank to the recipient-country banks using the recipient central bank as the bearer of the credit risk. Second, from the perspective of the transmission of monetary policy, it shows that the swap-line rate puts a ceiling on deviations from covered interest parity, and finds evidence for it in the data. Third, from the perspective of the macroeconomic effects of policy, it shows that the swap line ex ante encourages inflows from recipient-country banks into assets denominated in the source-country’s currency by reducing the ex post funding risk. We find support for these predictions using difference-in-difference empirical strategies that exploit the fact that only some currencies saw changes in the terms of their dollar swap line, only some bonds in banks’ investments are exposed to dollar funding risk, only some dollar bonds are significantly traded by foreign banks, and only some banks have a significant U.S. presence

Lending Relationships and the Collateral Channel

This article shows that lending relationships insulate corporate investment from fluctuations in collateral values. The sensitivity of corporate investment to changes in real-estate collateral values is halved when the length of relationship between a bank and a firm, or its board of directors, doubles. Long relationships with board members dominate relationships with the firm in dampening the collateral channel. Moreover, lending relationships with directors in their personal capacity insulate corporate investment over and above corporate relationships. Our findings support theories where collateral and private information are substitutes in mitigating credit frictions over the cycle and show that lending relationships are more multi-faceted than previously thought

Business creation during COVID-19

Using UK data, we present greater empirical detail on the puzzling firm dynamics that emerged during coronavirus disease 2019 (COVID-19). We show that firm entry increased during the pandemic across several countries, and this contrasts with typical recessions where firm entry declines. Additionally, the rise in firm entry is driven by individual entrepreneurs creating companies for the first time, particularly in online retail. We find evidence that firm creation responded significantly to declines in retail footfall and that firms created during the pandemic are more likely to exit and less likely to post jobs. Overall, this implies that despite surging firm creation during the pandemic, the overall employment effect is limited. Finally, we find that the primary contributor to limited employment creation is the shift in ownership composition of new entrants during COVID