Knowledge that Transforms

Do climate-oriented regulatory policies affect the flow of credit towards polluting firms? We match loan-level data to firm-level greenhouse gas emissions to assess the impact of the Paris Agreement. We find that, following this agreement, European banks reallocated credit away from polluting firms in relative terms. Specifically, euro area banks’ loan share to more polluting firms decreased by about 3percentage points compared to less polluting (or “green”) firms after the 2015 Paris Agreement (COP21). This result is stronger for banks that are well capitalized, have lower credit quality, and are less profitable.

We introduce a central bank digital currency (CBDC) in the network of financial accounts. Simulating a shift of deposits by both households and non-financial corporations from the banking sector to the central bank, we model the different responses of the affected institutional sectors. We find that the introduction of CBDC generates funding shortages in banks, which may propagate to other sectors. In addition, significant adjustments in the balance sheets of all sectors trigger large moves in securities prices and induce changes in the financial network structure. Finally, we extend the analysis to the introduction of a crypto financial asset (stablecoin) issued by either a domestic or a foreign entity.

Understanding the global financial network for sovereign debt, particularly with a focus on interaction and spillover effects of sovereign risk, has become important for policy makers as they look to protect the stability of their economies. Using high dimensional Vector Autoregression techniques and network simulation on Sovereign Credit Default Swaps (CDS)’ data of 57 countries, we identify that the global sovereign CDS network is fully integrated as there is virtually no country without any connection to at least one specific node in the system. However, each country has a unique attribute in the network, as a risk exporter or importer and/or risk transmitter. Among developed countries, the US (unsurprisingly) holds the dominant position as a risk exporter while Germany is identified as a connecting country that transmits shocks. The most connected countries in the sovereign CDS network belong to the new European Union members. We examine possible drivers of the network relationships observed, in order to better understand the risk transmission process, and find that connections in the sovereign risk network are stronger within regional groups and countries with the same level of economic development. Central and Eastern Europe and Middle East and Africa have more interactive networks than Northern Western Europe, Asia Pacific and Latin America. We also identify that financial volatility and economic policy uncertainty increase the interactions in market-based default risk assessment.

We examine China’s June 2013 liquidity crunch as a negative shock to banks and analyze the wealth effects on exchange-listed firms. Our findings suggest that liquidity shocks to financial institutions negatively impact borrower performance, particularly borrowers reporting outstanding loans at the end of 2012. Stock valuations of firms with long-term bank relationships, however, outperform the market and experience smaller subsequent declines in investment than peers lacking solid banking relationships. This effect is the strongest for firms that enjoy good relations with China’s large state-owned banks or foreign banks, and weakest for firms whose connections are solely with local banks. We document a positive correlation between the stock performances of firms and the stock performances of lender banks and the likelihood of lender banks operating as net lenders in the interbank market. These results suggest that banks transmit liquidity shocks to their borrowing firms and that a long-term bank-firm relationship may mitigate the negative effects of a liquidity shock.

In this paper, we revisit the question of how bank bailouts affect economic growth. We adopt a broad concept of bailouts, which includes both capital injections and liquidity support to the banking system. We employ an identification strategy that controls for the various dimensions of bailout endogeneity and find that liquidity support has a significant positive real economic effect. The effect of recapitalizations per se is not statistically significant, but they reinforce the positive impact of liquidity interventions. Utilizing bank-level data, we provide evidence that this is the case because better-capitalized banks and banks in significantly recapitalized systems have a higher propensity to lend, thus raising aggregate-level real economic growth.

This paper discusses different definitions of systemic risk and identifies the challenges, which regulators face in addressing this phenomenon. We conducted a systematic literature review of 4859 abstracts to categorize the various methodologies developed to measure systemic risk. In total, 60 systemic risk measures proposed post-2000 have been critically appraised to inform academics and regulators of their practical applications and model vulnerabilities. This review suggests that most of these methods focus on individual financial institutions rather than on system stability. Those methodologies directly reflect the current regulations, which aim to ensure individual institutions’ soundness. As macro-prudential regulation evolves, policy-makers face the issues of understanding contagion and how regulations should be implemented. This paper also discusses new systemic risk and regulatory challenges resulting from the current COVID-19 pandemic.

Following the Supreme Court decision in the Citizens United v. Federal Election Commission case of 2010, which removed restrictions in relation to firms’ political spending, and building on the growing debate over whether voluntary political spending disclosure (VPSD) provides valuable information, we examine the effect of political spending on the cost of public debt and the role of VPSD on this effect. Based on a measure of VPSD that became available in 2012 and a large dataset on US firms’ actual political spending, manually extracted from different filings, we provide novel evidence that, in the post-Supreme Court decision period, political spending increases the cost of public debt. This is consistent with the uncertainty associated with political spending. Moreover, we find that the level of voluntary disclosure weakens the positive association between political spending and the cost of public debt. These results hold across multiple specifications as well as when we use a sudden release of firms’ political spending as an exogenous shock to political spending.

We investigate whether the European regulatory reforms of the credit rating industry have been successful in improving the quality of financial institutions’ credit ratings. A shift to more conservative rating behaviour rather than rating quality improvement is identified, which is attributable to increased regulatory scrutiny. This change leads to a reduction in rating inflation and an increase in the number of unwarranted downgrades and false rating warnings in the post-regulatory period. A significant decrease (increase) in the informativeness of rating downgrades (upgrades) is evident. Our findings contrast with prior evidence for US corporates where reputational effects dominated.

We derive the default cascade model and the fire-sale spillover model in a unified interdependent framework. The interactions among banks include not only direct cross-holding, but also indirect dependency by holding mutual assets outside the banking system. Using data extracted from the European Banking Authority, we present the interdependency network composed of 48 banks and 21 asset classes. For the robustness, we employ three methods, called Anan, Hała and Maxe, to reconstruct the asset/liability cross-holding network. Then we combine the external portfolio holdings of each bank to compute the interdependency matrix. The interdependency network is much denser than the direct cross-holding network, showing the complex latent interaction among banks. Finally, we perform macroprudential stress tests for the European banking system, using the adverse scenario in EBA stress test as the initial shock. For different reconstructed networks, we illustrate the hierarchical cascades and show that the failure hierarchies are roughly the same except for a few banks, reflecting the overlapping portfolio holding accounts for the majority of defaults. We also calculate systemic vulnerability and individual vulnerability, which provide important information for supervision and relevant management actions.

We examine (1) spillover effects between euro-area sovereigns and banking systems within national jurisdictions and (2) cross-country spillovers among ten countries during the euro-area crisis. We find that cross-country spillovers substantially amplify the doom loops between the sovereign and banking sectors. We also provide a test that supports the hypothesis that cross-country spillovers among southern-euro-area countries were of a different order from the spillovers among northern-euro-area countries. Our results also imply that, if shocks are idiosyncratic, spillover effects may help in reducing the impact for northern countries.