Private equity and regulatory capital

Regulatory capital requirements for European banks have been put forward in the Basel II Capital Framework and subsequently in the capital requirements directive (CRD) of the EU. We provide a detailed discussion of the capital requirements for private equity investments under different approaches. For the internal model approach we present a structural model that we calibrate to a proprietary dataset. We modify the standard Merton structural model to make it applicable in practice and to capture stylized facts of private equity investments. We also implement the early default feature with a fast simulation algorithm. Our results support capital requirements lower than in Basel II, but not as low as in CRD, thereby giving adverse incentives to banks for using advanced risk models. A sensitivity analysis shows that this finding is robust to parameter uncertainty and stress scenarios.     

Optimal portfolios with minimum capital requirements

We propose a novel approach to active risk management based on the recent Basel II regulations to obtain optimal portfolios with minimum capital requirements. In order to avoid regulatory penalties due to an excessive number of Value-at-Risk (VaR) violations, capital requirements are minimized subject to a given number of violations over the previous trading year. Capital requirements are based on the recent Basel II amendments to account for the ‘stressed’ VaR, that is, the downside risk of the portfolio under extreme adverse market conditions. An empirical application for two portfolios involving different types of assets and alternative stress scenarios demonstrates that the proposed approach delivers an improved balance between capital requirement levels and the number of VaR exceedances. Furthermore, the risk-adjusted performance of the proposed approach is superior to that of minimum-VaR and minimum-stressed VaR portfolios.     

Managerial entrenchment, equity payout and capital structure

I develop a contingent claims model to examine the impacts of managerial entrenchment on capital structure and security valuation. The analysis shows that managers’ self-interested leverage choices deviate significantly from the optimal leverages that maximize firm values, partially explaining the suboptimal leverage ratios observed empirically (Graham, 2000). Both the extent and sensitivity of the deviations are affected by firm characteristics, debt features and default solutions. The shareholder-manager conflicts over risk level and cash payout vary dynamically with a firm’s financial health. Managerial entrenchment does not mitigate the agency problems of debt since managers’ discretionary decisions on milking properties or asset substitution could be driven by incentives to increase their own utility.     

Countercyclical contingent capital

We analyze the optimal capital structure of a bank issuing countercyclical contingent capital, i.e., notes to be converted into common shares in poor macroeconomic conditions. A comparison of the main effects produced by the countercyclical asset with the simple equity-debt capital structure, the non-countercyclical contingent capital and the countercyclical callable bond is conducted. We demonstrate that this type of asset reduces the spread of straight debt and is effective in reducing the asset substitution incentive. The reduction of bankruptcy costs is strong only when the countercyclicality feature is removed. Contingent capital is useful for macroprudential regulation and we show that the countercyclical feature is important depending on priorities (moderate the asset substitution incentive or reduce bankruptcy costs).     

Entrepreneurial finance: Banks versus venture capital

We analyze how entrepreneurial firms choose between two funding institution: banks, which monitor less intensively and face liquidity demands from their own investors, and venture capitalists, who can monitor more intensively but face a higher cost of capital because of the liquidity constraints that they impose on their own investors. Because the firm's manager prefers continuing the firm over liquidating it and aggressive (risky) continuation strategies over conservative (safe) continuation strategies, the institution must monitor the firm and exercise some control over its decisions. Bank finance takes the form of debt, whereas venture capital finance often resembles convertible debt. Venture capital finance is optimal only when the aggressive continuation strategy is not too profitable, ex ante; the uncertainty associated with the risky continuation strategy (strategic uncertainty) is high; and the firm's cash flow distribution is highly risky and positively skewed, with low probability of success, low liquidation value, and high returns if successful. A decrease in venture capitalists’ cost of capital encourages firms to switch from safe strategies and bank finance to riskier strategies and venture capital finance, increasing the average risk of firms in the economy.     

The cyclical effects of the Basel II capital requirements

Capital requirements play a key role in the supervision and regulation of banks. The Basel Committee on Banking Supervision is in the process of changing the current framework by introducing risk sensitive capital charges. Some fear that this will unduly increase the volatility of regulatory capital. Furthermore, by limiting the banks’ ability to lend, capital requirements may exacerbate an economic downturn. The paper examines the problem of capital-induced lending cycles and their pro-cyclical effect on the macroeconomy in greater detail. It finds that the capital buffer that banks hold on top of the required minimum capital plays a crucial role in mitigating the impact of the volatility of capital requirements.     

Bank size and risk-taking under Basel II

We analyze the relationship between bank size and risk-taking under the Basel II Capital Accord. Using a model with imperfect competition and moral hazard, we show that the introduction of an internal ratings based (IRB) approach improves upon flat capital requirements if the approach is applied uniformly across banks and if the costs of implementation are not too high. However, the banks’ right to choose between the standardized and the IRB approaches under Basel II gives larger banks a competitive advantage and, due to fiercer competition, pushes smaller banks to take higher risks. This may even lead to higher aggregate risk-taking.     

Monitoring via staging: Evidence from Private investments in public equity

I study the causes and consequences of staging in the setting of private investments in public equities (PIPEs). I find that, in PIPE investments, as in venture capital staging, the staging strategy is used by investors as a monitoring mechanism to mitigate information asymmetry and agency problems. Moreover, strategic investors and investors investing alone are more likely to utilize staging. I show also that staging reduces the cost of financing and has positive implications for PIPE issuers’ long-run stock performance.     

Bank capital, firm liquidity, and project quality

We construct an economy where a two way interaction between bank capital and project quality propagates negative shocks to technology or regulation. By shrinking the available liquidity and the scale of their activity, a contraction in bank loans discourages entrepreneurs from sustaining the set-up effort of high quality projects, inducing them to shift to low quality ones. The deterioration in project quality erodes the value of bank assets and, hence, banks’ capitalization and loanable funds. Lack of information in the secondary market for bank assets amplifies the propagation.     

Banking relationships and access to equity capital markets: Evidence from Japan’s main bank system

We study the role of banking relationships in IPO underwriting. When a firm in Japan goes public, it can engage an investment bank that is related through a common main bank, or can select an alternative investment bank. The main bank relationship can be an efficient way for the investment bank to acquire information generated by the main bank, but may give rise to conflicts of interest. We find that main bank relationships give small issuers increased access to equity capital markets, but that issuers of large IPOs often switch to non-related investment banks that are capable of managing large offerings. While investment banks seek to exploit bargaining power with related issuers, issuers respond to expected high issue cost by switching to non-related investment banks. The net result is that total issue costs through related and non-related investment banks are similar. With respect to aftermarket performance and use of proceeds, we find no evidence of conflict of interest or self-dealing for either the main bank or the investment bank.     

In search of conclusive evidence: How to test for adjustment to target capital structure

Simulation experiments show that both partial-adjustment and debt-equity choice models can generate spuriously significant estimates that are consistent with the hypothesis that firms have target debt ratios to which they periodically adjust. Regressions relying on full-sample fixed effects models of target leverage, in particular, produce results severely biased in favor of the target-adjustment hypothesis. Various target proxies and modifications to the standard methodologies are examined to identify partial-adjustment and debt-equity choice models that have power to reject the target-adjustment hypothesis. The resulting estimates of the speed of adjustment are in the range of five-eight percent per year.     

Access to capital,investment, and the financial crisis

During the recent financial crisis, corporate borrowing and capital expenditures fall sharply. Most existing research links the two phenomena by arguing that a shock to bank lending (or, more generally, to the corporate credit supply) caused a reduction in capital expenditures. The economic significance of this causal link is tenuous, as we find that (1) bank-dependent firms do not decrease capital expenditures more than matching firms in the first year of the crisis or in the two quarters after Lehman Brother's bankruptcy; (2) firms that are unlevered before the crisis decrease capital expenditures during the crisis as much as matching firms and, proportionately, more than highly levered firms; (3) the decrease in net debt issuance for bank-dependent firms is not greater than for matching firms; (4) the average cumulative decrease in net equity issuance is more than twice the average decrease in net debt issuance from the start of the crisis through March 2009; and (5) bank-dependent firms hoard cash during the crisis compared with unlevered firms.     

A stochastic frontier approach to modelling financial constraints in firms: An application to India

We propose the use of stochastic frontier approach to modelling financial constraints of firms. The main advantage of the stochastic frontier approach over the stylised approaches that use pooled OLS or fixed effects panel regression models is that we can not only decide whether or not the average firm is financially constrained, but also estimate a measure of the degree of the constraint for each firm and for each time period, and also the marginal impact of firm characteristics on this measure. We then apply the stochastic frontier approach to a panel of Indian manufacturing firms, for the 1997–2006 period. In our application, we highlight and discuss the aforementioned advantages, while also demonstrating that the stochastic frontier approach generates regression estimates that are consistent with the stylised intuition found in the literature on financial constraint and the wider literature on the Indian credit/capital market.     

Loan pricing under Basel capital requirements

We analyze the loan pricing implications of the reform of bank capital regulation known as Basel II. We consider a perfectly competitive market for business loans where, as in the model underlying the internal ratings based (IRB) approach of Basel II, a single risk factor explains the correlation in defaults across firms. Our loan pricing equation implies that low risk firms will achieve reductions in their loan rates by borrowing from banks adopting the IRB approach, while high risk firms will avoid increases in their loan rates by borrowing from banks that adopt the less risk-sensitive standardized approach of Basel II. We also show that only a very high social cost of bank failure might justify the proposed IRB capital charges, partly because the net interest income from performing loans is not counted as a buffer against credit losses. A net interest income correction for IRB capital requirements is proposed.     

World markets for raising new capital

We examine the extent to which firms from different countries rely on alternative sources of capital, the locations in which they raise capital, and the factors that affect these choices. During the 1990–2001 period, firms raised about $25.3 trillion of new capital, including $4.9 trillion from abroad. International debt issuances are substantially more common than equity issuances, with debt (equity) issues accounting for 87% (9%) of all securities issued internationally, and about 20% (12%) of all public debt issuances. Market timing considerations appear to be important in security issuance decisions in most countries.     

Corporate tax,capital structure,and the accessibility of bank loans: Evidence from China

In this paper, we investigate whether listed firms in China adjust their capital structure in response to an increase in the corporate tax rate. Although theories of capital structure suggest that corporate tax is an important determinant of capital structure, how exogenous changes of the tax rate affect firms’ leverage decisions has not been fully explored. We examine a unique circumstance in which the Chinese government increased the corporate tax rate of firms that had previously received local government tax rebates. The evidence indicates that these firms increased their leverage when the corporate tax rate increased. Further investigation suggests that the adjustment of leverage was mostly driven by firms with a high level of access to bank loans.     

Motivations for public equity offers: An international perspective

This paper examines the motivations for public equity offers, using a sample of 17,226 initial public offerings and 13,142 seasoned equity offerings from 38 countries between 1990 and 2003. We estimate the uses of funds raised in both initial and seasoned offerings. Firms appear to spend incremental dollars on both R&D and capital expenditures, consistent with the investment financing explanation of equity issues. However, consistent with the mispricing explanation, high market to book firms tend to save more cash and offer a higher fraction of secondary shares in SEOs than low market to book firms.     

The international transmission of bank capital requirements: Evidence from the UK

We use data on UK banks? minimum capital requirements to study the impact of changes to bank-specific capital requirements on cross-border bank loan supply from 1999Q1 to 2006Q4. By examining a sample in which each recipient country has multiple relationships with UK-resident banks, we are able to control for demand effects. We find a negative and statistically significant effect of changes to banks? capital requirements on cross-border lending: a 100 basis point increase in the requirement is associated with a reduction in the growth rate of cross-border credit of 5.5 percentage points. We also find that banks tend to favor their most important country relationships, so that the negative cross-border credit supply response in “core” countries is significantly less than in others. Banks tend to cut back cross-border credit to other banks (including foreign affiliates) more than to firms and households, consistent with shorter maturity, wholesale lending which is easier to roll off and may be associated with weaker borrowing relationships.     

Foreign bank entry and firms’ access to bank credit: Evidence from China

This paper studies the impact of foreign bank entry on domestic firms’ access to bank credit using a within-country staggered geographic variation in the policy of foreign bank lending in China. The paper finds that after foreign bank entry profitable firms use more long-term bank loans; whereas firms with higher value of potential collateral do not. It also finds that non-state-owned firms become able to substitute some trade credit with long-term bank loans. The findings suggest that less opaque firms and non-state-owned firms benefit more from foreign bank entry and that collateral may only play a limited role in mitigating the problem of information asymmetry when creditors’ rights are not well protected in a host country.     

Gross capital flows: Dynamics and crises

This paper analyzes the behavior of international capital flows by foreign and domestic agents, dubbed gross capital flows, over the business cycle and during financial crises. We show that gross capital flows are very large and volatile, especially relative to net capital flows. When foreigners invest in a country, domestic agents invest abroad, and vice versa. Gross capital flows are also pro-cyclical. During expansions, foreigners invest more domestically and domestic agents invest more abroad. During crises, total gross flows collapse and there is a retrenchment in both inflows by foreigners and outflows by domestic agents. These patterns hold for different types of capital flows and crises. This evidence sheds light on the sources of fluctuations driving capital flows and helps discriminate among existing theories. Our findings seem consistent with crises affecting domestic and foreign agents asymmetrically, as would be the case under the presence of sovereign risk or asymmetric information.