Partial adjustment toward target capital structures

The empirical literature provides conflicting assessments about how firms choose their capital structures. Distinguishing among the three main hypotheses (“tradeoff”, pecking order, and market timing) requires that we know whether firms have long-run leverage targets and (if so) how quickly they adjust toward them. Yet many previous researchers have applied empirical specifications that fail to recognize the potential for incomplete adjustment. A more general, partial-adjustment model of firm leverage indicates that firms do have target capital structures. The typical firm closes about one-third of the gap between its actual and its target debt ratios each year.     

Basel-2 capital adequacy: Computing the ‘fair’ capital charge for loan commitment ‘true’ credit risk

This research makes two contributions: (i) to price analytically put option and extension premium embedded in a borrower-extendible commitment, and (ii) to compute the ‘fair’ capital charge that corresponds to the commitment ‘true’ credit risk. In doing so, the procedure replaces the BIS accounting-based concepts of credit-conversion factor, principal-risk factor, and initial term to maturity of irrevocable commitments with the market-based concepts of exercise-cum-takedown proportion and put value implicit in the borrower-extendible commitment, respectively. Finally, the approach is developed one step further to account for the borrowers' risk ratings by public credit agencies; this results in a two-dimensional (time-state of nature) risk-weighting system that applies to all commitment types.     

Valuation of insurers’ contingent capital with counterparty risk and price endogeneity

This study develops a structural framework to value insurers’ contingent capital with counterparty risk (CR) and overcomes the problem of price endogeneity (PE) in the valuation model. Our results on the focal contingent capital instrument – catastrophe equity put option (CatEPut) – indicate that prices can be significantly overestimated without considering CR and be significantly underestimated without considering PE. This study also examines how CatEPuts affect the buyer’s probability of default (PD). Our results show that buying a CatEPut lowers the PD for high-risk insurers, but not necessarily so for low-risk insurers; however, without taking CR and PE into account, one may significantly overestimate the credit enhancement provided by the CatEPuts.     

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.     

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).     

Model risk and capital reserves

We propose a procedure to take model risk into account in the computation of capital reserves. This addresses the need to make the allocation of capital reserves to positions in given markets dependent on the extent to which reliable models are available. The proposed procedure can be used in combination with any of the standard risk measures, such as Value-at-Risk and expected shortfall.     

Subsidiary debt,capital structure and internal capital markets

I study external debt issued by operating subsidiaries of diversified firms. Consistent with Kahn and Winton's [2004. Moral hazard and optimal subsidiary structure for financial institutions. Journal of Finance 59, 2537–2575] model, where subsidiary debt mitigates asset substitution, I find firms are more likely to use subsidiary debt when their divisions vary more in risk. Consistent with subsidiary debt mitigating the free cash flow problem, I find that subsidiaries are more likely to have their own external debt when they have fewer growth options and higher cash flow than the rest of the firm. Finally, I find that subsidiary debt mitigates the “corporate socialism” and “poaching” problems modeled in theories of internal capital markets.     

Basel’s value-at-risk capital requirement regulation: An efficiency analysis

We analyze the optimal portfolio policies of expected utility maximizing agents under VaR Capital Requirement (VaR-CR) regulation in comparison to the optimal policy under exogenously-imposed VaR Limit (VaR-L) and Limited-Expected-Loss (LEL) regulations. With VaR-CR regulation the agent strategy consists of simultaneous decisions on both the portfolio VaR and on the implied amount of required eligible capital. As a result, the performance of VaR-CR regulation depends on its design (the parameter n) and the agent preferences. We show that an optimal VaR-CR regulation allows the regulator on the one hand, to completely eliminate the exposure to the largest losses, which may jeopardize the existence of the institution, and on the other hand, to restrain the portfolio exposure to all other losses. These results rationalize the current Basel regulations. However, the analysis shows also that there is an optimal level of required eligible capital from the regulator standpoint. Counter-intuitively, any requirement above this optimal level is inefficient as it leads to a smaller amount of actually maintained eligible capital and thereby to a larger exposure to the most adverse states of the world. Unfortunately, the current Basel’s range of required levels (n = 3–4) is within this inefficient range. Moreover, with an inefficient regulation the agent might employ an inefficient reporting and disclosure procedure.     

Collateral and capital structure

We develop a dynamic model of investment, capital structure, leasing, and risk management based on firms' need to collateralize promises to pay with tangible assets. Both financing and risk management involve promises to pay subject to collateral constraints. Leasing is strongly collateralized costly financing and permits greater leverage. More constrained firms hedge less and lease more, both cross-sectionally and dynamically. Mature firms suffering adverse cash flow shocks may cut risk management and sell and lease back assets. Persistence of productivity reduces the benefits to hedging low cash flows and can lead firms not to hedge at all.     

Economic freedom and cross-border venture capital performance

We investigate the determinants of cross-border venture capital (VC) performance using a large sample of 10,205 cross-border VC investments by 1906 foreign VC firms (VCs) in 6535 domestic portfolio companies. We focus on the impact of a domestic country's economic freedom on the performance of both VC investments and portfolio companies using a probit model and the Cox hazard model. After controlling for other related factors of domestic countries, portfolio companies, VCs and the global VC market, as well as year and industry fixed effects, we find that a domestic country's economic freedom is crucial to cross-border VC performance. In particular, in a more economically free country, as measured by the raw values of, quartiles of or the ranking in the index of economic freedom (IEF), a foreign VC-backed portfolio company is more likely to pull off a successful exit through an IPO (initial public offering) or an M&A (merger and acquisition), and a foreign VC firm is likely to spend a shorter investment duration in the portfolio company. We also identify interesting evidence on the impact of many other level factors of domestic countries, portfolio companies, VCs and the global VC market on cross-border VC performance.     

Firm growth type and capital structure persistence

We find that growth type (identified by a two-way sort on firm initial market-to-book ratio and asset tangibility) can parsimoniously predict significantly dispersed and persistently distinct future leverage ratios. Growth type is persistent; growth-type-sorted cross-sections of corporate fundamental variables (such as tangible versus intangible investment style) are also meaningfully persistent. As economic and market conditions improve, low growth type firms are keener to issue new debt than equity, whereas high growth type firms are least likely to issue debt and keenest to issue equity. These findings demonstrate that firms rationally invest and seek financing in a manner compatible with their growth types. Consistent with a generalized Myers–Majluf framework, growth type compatibility enables distinct growth types and hence specifications of market imperfection or informational environments to persist. Growth type is apparently a fundamental factor for capital structure persistence.     

Human capital,capital structure,and employee pay: An empirical analysis

We test the predictions of Titman (1984) and Berk, Stanton, and Zechner (2010) by examining the effect of leverage on labor costs. Leverage has a significantly positive impact on cash, equity-based, and total compensation of chief executive officers (CEOs). Compensation of new CEOs hired from outside the firm is positively related to prior-year firm leverage. In addition, leverage has a positive and significant impact on average employee pay. The incremental total labor expenses associated with an increase in leverage are large enough to offset the incremental tax benefits of debt. The empirical evidence supports the theoretical prediction that labor costs limit the use of debt.     

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.     

The regulator’s trade-off: Bank supervision vs. minimum capital

We develop a simple model of banking regulation with two policy instruments: minimum capital requirements and the supervision of domestic banks. The regulator faces a trade-off: high capital requirements cause a drop in the banks’ profitability, whereas strict supervision reduces the scope of intermediation and is costly for taxpayers. We show that a mix of both instruments minimises the costs of preventing the collapse of financial intermediation. Once we allow for cross-border banking, the optimal policy is not feasible. If domestic supervisory effort is not observable, our model predicts a race to the bottom in capital requirement regulation. Therefore, countries are better off by harmonising regulation on an international standard.     

Venture capital reputation and investment performance

I propose a new measure of venture capital (VC) firm reputation and analyze its performance implications on private companies. Controlling for portfolio company quality and other VC-specific factors including experience, connectedness, syndication, industry competition, exit conditions, and investment environment, I find companies backed by more reputable VCs by initial public offering (IPO) capitalization share (based on cumulative market capitalization of IPOs backed by the VC), are more likely to exit successfully, access public markets faster, and have higher asset productivity at IPOs. Further tests suggest VCs’ IPO Capitalization share effectively captures both VC screening and monitoring expertise. My findings have financial implications for limited partners and entrepreneurs regarding their VC-sorting activities.     

Corporate governance and capital allocations of diversified firms

We examine how various aspects of corporate governance structures affect the capital allocation inefficiency that drives the value discounts of diversified firms. Diversified firms with more effective internal or external governance mechanisms experience more efficient investment allocations at both the firm and segment levels and show less of a diversification discount. The efficiency of the investment allocation process is better for diversified firms with high board independence, low board busyness, high institutional ownership, high outside director ownership, high CEO equity-based pay, high audit quality, and strong shareholder rights. The results hold after controlling for other potential influences. Our evidence suggests that corporate governance considerations are important in assessing the relation between investment efficiency and firm value for diversified firms.     

Venture capital funds: Flow-performance relationship and performance persistence

This paper finds that venture capital funds that are expected to be backed by more skilled investors show no performance persistence but a significant flow-performance relationship. In contrast, funds that are expected to be backed by less skilled investors show performance predictability and have a non-significant flow-performance relationship. These results suggest that only skilled investors use all available information to adjust their capital allocation and, as a result, eliminate performance predictability as argued theoretically by Berk and Green (2004). Results also show that Kaplan and Schoar (2005) overstate the persistence in fund performance by not using an ex ante measure of the performance of earlier funds. Whether or not an ex ante measure is used, however, the persistence is largely due to unsophisticated investors. When investors are sophisticated, the performance of earlier funds, sequence and fund size do not help predict the performance of the focal fund.     

The causes and consequences of venture capital stage financing

This paper examines the causes and consequences of venture capital (VC) stage financing. Using information about the physical location of an entrepreneurial firm and the geographic distance between the VC investor and the firm, I show that VC investors located farther away from an entrepreneurial firm tend to finance the firm using a larger number of financing rounds, shorter durations between successive rounds, and investing a smaller amount in each round. However, VC investors' propensity to stage is independent of whether the firm is located in a close-knit community. I also find that VC staging positively affects the entrepreneurial firm's propensity to go public, operating performance in the initial public offering (IPO) year, and post-IPO survival rate, but only if the firm is located far away from the VC investor. However, the effect of VC staging on entrepreneurial firm's performance is independent of whether it is located in a close-knit community. The findings are robust to a variety of alternative proximity measures, instrumental variables, and econometric approaches for dealing with endogeneity problems.     

Social capital and payout policies

In this paper, we investigate the relationship between regional social capital and corporate payout policies. Using a large sample of US data, we find a positive relationship between regional social capital and both the likelihood and the amount of cash dividend payouts. However, we find that social capital has no bearing on the likelihood and amount of stock repurchases. The results from additional analyses show that the relationship between social capital and dividends is more pronounced for less geographically dispersed firms. We also find that the network component of social capital has a greater effect on dividends than the social norm component. Our results are robust to alternative specifications of dividends and social capital and to the use of a two-stage least squares (2SLS) analysis to alleviate endogeneity concerns. Overall, we document that regional social capital plays an important role in influencing cash dividend payout policies.