Bailout uncertainty in a microfounded general equilibrium model of the financial system

This paper develops a micro-founded general equilibrium model of the financial system composed of ultimate borrowers, ultimate lenders and financial intermediaries. The model is used to investigate the impact of uncertainty about the likelihood of governmental bailouts on leverage, interest rates, the volume of defaults and the real economy. The distinction between risk and uncertainty is implemented by applying the multiple priors framework to beliefs about the probability of bailout.Results of the analysis include: (i) An unanticipated increase in bailout uncertainty raises interest rates, the volume of defaults in both the real and financial sectors and may lead to a total drying up of credit markets. (ii) Lower exante bailout uncertainty is conducive to higher leverage, which in turn raises moral hazard and makes the economy more vulnerable to expost increases in bailout uncertainty. (iii) Bailout uncertainty affects the likelihood of bubbles, the amplitude of booms and busts as well as the banking and the credit spreads. (iv) Higher bailout uncertainty is associated with higher returns’ variability in diversified portfolios and higher systemic risks, (v) Pre-crisis expansionary monetary policy reinforces those effects by inducing higher aggregate leverage levels. (vi) The larger the change in bailout uncertainty and the change in aversion to this uncertainty, the stronger the pre-crisis buildup and the deeper the ensuing crisis.A central policy implication of the analysis is that the vaguest is bailout policy prior to a crisis, the lower is the magnitude of investments destroyed or missed due to errors in evaluating bailout and other intervention policies. On the other hand, the clearer is bailout policy upon the eruption of a crisis, the smaller the contraction of credit and the destruction of investment activity.     

Why Do Bank Runs Look Like Panic? A New Explanation

This paper demonstrates that, even if depositors are fully rational and always choose the Pareto-dominant equilibrium when there are multiple equilibria, a bank run may still occur when depositors' expectations on the bank's fundamentals do not change. More specifically, a bank run may occur when depositors learn that noisy bank-specific information will be revealed, or when they learn that precise bank-specific information will not be revealed. The results in this paper are consistent with the empirical evidence about bank runs. It also implies that suspension of convertibility can improve the efficiency of bank runs.     

Payout policy,financial flexibility,and agency costs of free cash flow

This paper explains how firms choose between dividends and open-market repurchase programs, the prevailing method that firms use to disburse cash today. While earlier theories about payout policy are motivated by signaling, the motivation for payout in this paper is to prevent the waste of free cash by self-interested insiders. In the model, dividends prevent free cash waste by forcing cash out, but result in underinvestment if the cash paid out is later needed for operations. Open-market programs stimulate payout by providing personal gains to informed insiders that are associated with the firm's repurchase trade. Yet, they also avoid the underinvestment problem by leaving insiders the option to cancel the payout. Because their execution is optional, however, open-market programs only partially prevent the waste of free cash. The model provides testable predictions that are generally consistent with the empirical evidence.     

On Freezing Depositor Funds at Financially Distressed Banks: An Experimental Analysis

This article reports an experiment conducted to evaluate the effects of alterations in the terms of repayments to depositors following a liquidity suspension, as well as the effect of alterations in the publicity of information about withdrawal behavior on the fragility of distressed banks. Results indicate that a “tough” renegotiation stance of protecting depositors who maintain their money in the bank, can quite effectively promote stability. Information provided to depositors regarding past withdrawal behavior weakens the effectiveness of a tough renegotiation policy but reduces fragility somewhat for a more lenient rescheduling condition.     

Safety-net benefits conferred on difficult-to-fail-and-unwind banks in the US and EU before and during the great recession

This paper investigates the links between regulatory arbitrage, financial instability, and taxpayer loss exposures. We model and estimate ex ante safety-net benefits from increased leverage and asset volatility at a sample of large banks in US and Europe during 2003–2008. Hypothesis tests indicate that, in both crisis and precrisis years, difficult-to-fail-and-unwind (DFU) banks enjoyed substantially higher ex ante benefits than other institutions. Compared to the US sample, safety-net benefits prove significantly larger for DFU firms in Europe and bailout decisions are less driven by asset size. Introducing a proxy for differences in government susceptibility to regulatory capture helps to explain bailout decisions in Europe. Our findings suggest that authorities in both venues could better contain safety-net benefits if they refocused their information systems on monitoring volatility as well as capital.     

Market discipline during crisis: Evidence from bank depositors in transition countries

The Central European banking industry is dominated by foreign-owned banks. During the recent crisis, for the first time since the transition, foreign parent companies were frequently in a worse financial condition than their subsidiaries. This situation created a unique opportunity to study new aspects of market discipline exercised by non-financial depositors. Using a comprehensive data set, we find that the recent crisis did not change the sensitivity of deposit growth rates to accounting risk measures. We establish that depositors’ actions were more strongly influenced by negative press rumors concerning parent companies than by fundamentals. The impact of rumors was especially perceptible when rumors turned out ex post to be founded. Additionally, we document that public aid announcements were primarily interpreted by depositors as confirmation of a parent company’s financial distress. Our results indicate that depositors react rationally to sources of information other than financial statements; this discovery has policy implications, as depositor discipline is usually the only viable and universal source of market discipline for banks in emerging economies.     

Market discipline by bank creditors during the 2008–2010 crisis

We investigate whether uninsured depositors, insured depositors, and general creditors exhibit evidence of quantity market discipline during the recent financial crisis. To establish which types of creditors expect to incur loss, we evaluate the FDIC's expectations about losses to creditors at banks that failed between 2008 and 2010. Our results show that quantity market discipline tends to begin far enough in advance to signal to both banks and supervisors that corrective actions can and should be taken. Furthermore, creditors are able to distinguish between banks of different risk levels. Our findings support several policy implications for encouraging market discipline.     

Financial expertise of directors

We analyze how directors with financial expertise affect corporate decisions. Using a novel panel data set, we find that financial experts exert significant influence, though not necessarily in the interest of shareholders. When commercial bankers join boards, external funding increases and investment-cash flow sensitivity decreases. However, the increased financing flows to firms with good credit but poor investment opportunities. Similarly, investment bankers on boards are associated with larger bond issues but worse acquisitions. We find little evidence that financial experts affect compensation policy. The results suggest that increasing financial expertise on boards may not benefit shareholders if conflicting interests (e.g., bank profits) are neglected.     

Short-sale constraints and price bubbles

Miller (1977) demonstrated that if investors have heterogeneous beliefs and short sales are restricted, trade of a security will disproportionately reflect positive information, generating a price bubble. As this intuition applies most relevantly to short intervals of trade, a question arises as to the longevity of such a bubble. In this paper, I argue that a bubble effected by short-sale constraints persists only if agents cannot distinguish between order flow caused by positive information or order flow caused by the constraints. If the constraint is common knowledge, it should have no effect on the long-term pricing of the stock. If, however, the constraint is random and unknown, a price bubble may form.     

Deposit Insurance and Depositor Monitoring: Quasi-Experimental Evidence from the Creation of the Federal Deposit Insurance Corporation

The Banking Acts of 1933 and 1935 insured deposits up to $5,000 and limited interest paid by commercial banks. This essay uses a treatment-and-control estimation strategy to determine how those reforms influenced depositors’ reactions to information about banks’ balance sheets by comparing preferred and regular depositors at New York state banks. Before deposit insurance, regular depositors reacted more to information about banks, while preferred depositors reacted less. After, this difference diminished and almost disappeared. This change indicates insurance reduced monitoring, although depositors’ continued response to some information indicates that large, uninsured depositors continued to monitor banks, as the legislation intended.     

When active fund managers deviate from their peers: Implications for fund performance

This paper proposes that the extent to which mutual fund managers’ beliefs deviate from the ex ante unobservable representative beliefs of their peers contains information about their skill. A new measure based on portfolio allocations, peer deviation, is used to capture a fund manager’s divergence from the contemporaneously unobservable beliefs of her peers. The portfolio based on representative beliefs of a group of managers investing in similar assets outperforms passive benchmarks, indicating that they reflect informed beliefs. Fund managers who simultaneously arrive at portfolio selections which, in hindsight, are close to those implied by representative beliefs possess ex ante more skill and exhibit future outperformance. Copycat strategies replicating lagged portfolio holdings implied by representative beliefs outperform the actual portfolio holdings of funds that deviate most, but the outperformance dissipates after two quarters.     

Supply and Demand Effects of Bank Bailouts: Depositors Need Not Apply and Need Not Run

We address two key issues concerning bank bailout effects on depositor and bank behavior. The first is whether bailouts weaken or strengthen market discipline by depositors through deposit supplies. The second is if bailed-out banks decrease or increase their deposit demands. These questions can only be adequately addressed by analyzing the effects of bailouts on both deposit quantities and prices. We do so for the Troubled Asset Relief Program (TARP) bailouts. Overall, we find that demand changes empirically dominate supply changes, and suggest significantly reduced deposit demand from bailouts. In some cases, however, supply changes dominate and indicate weakened market discipline.     

"大而不倒"救助政策的理论和实证研究

由于大银行倒闭的巨大破坏性,最后贷款人在救助中通常奉行"大而不倒"政策。考虑到救助成本是银行资产规模的增函数,如果救助银行是最优的,那么救助任何一个更大的银行将也是最优的,这也意味着"大而不倒"救助政策在理论上的成立。在"大而不倒"政策下,规模和风险之间存在相互影响的关系。"大而不倒"救助政策影响银行的规模选择和资产风险的组合选择,导致银行追求变得更大且更具风险。     

违约与杠杆周期——一个带有救助的金融加速器模型

我国为应对2008年国际金融危机的冲击采取了一系列经济刺激政策,在发挥“稳增长”作用的同时,也在一定程度上导致我国企业部门杠杆水平快速上升,但与此同时,不良贷款率并没有随企业部门杠杆的上升而显著增加。为了解释企业部门违约与杠杆的周期特征,本文在金融加速器模型(Bernanke et al.,1999)基础上,引入政府对企业部门的违约救助机制,建立DSGE模型进行讨论。进一步地,本文还通过一个不合意的去杠杆政策试验表明,忽略资产价格稳定(或者说金融稳定)前提下的去杠杆政策,反而会使企业部门的杠杆和违约率同时上升到一个较高水平。最后,引入一个盯住预期资产价格的动态救助规则能够发挥稳定经济的作用,并提高社会福利水平。     

Asset pricing with heterogeneous beliefs and relative performance

We propose an equilibrium asset pricing model in which agents with heterogeneous beliefs care about relative performance. We find that the concern with relative performance leads agents to trade more similarly, a development that has two effects. First, similar trading directly decreases volatility. Second, similar trading decreases the impact of dominant agents. The second effect dominates the first when agents expect large differences between their final performances, and vice versa when agents expect small differences between their final performances. Compared with the case in which agents are unconcerned about relative performance, the stock return volatility is higher when the second effect dominates, and lower when the first effect dominates. This paper also demonstrates that the concern about relative performance influences investors’ holdings, stock prices and risk premia.     

The optimal design of Ponzi schemes in finite economies

As no rational agent would be willing to take part in the last round in a finite economy, it is difficult to design Ponzi schemes that are certain to explode. This paper argues that if agents correctly believe in the possibility of a partial bailout when a gigantic Ponzi scheme collapses, and they recognize that a bailout is tantamount to a redistribution of wealth from non-participants to participants, it may be rational for agents to participate, even if they know that it is the last round. We model a political economy where an unscrupulous profit-maximizing promoter can design gigantic Ponzi schemes to cynically exploit this “too big to fail” doctrine. We point to the fact that some of the spectacular Ponzi schemes in history occurred at times where and when such political economies existed—France (1719), Britain (1720), Russia (1994), and Albania (1997).     

商业银行挤兑机理及信息层叠概率计算

从存款者类型、群体信念、私有信息、存款者决策行为四个方面构建信息结构来研究商业银行挤兑机理,探讨了存款者从商业银行投资信息市场接收到好信号或者坏信号情况下,商业银行投资收益仍属于高收益或低收益的群体信念后验概率;计算了耐心存款者无信息层叠概率、无挤兑信息层叠概率和挤兑信息层叠概率。得出提高存款者信息精确度既可以消除银行挤兑的重要根源——信息不对称问题,又有利于经营状况良好的银行稳步发展,防止经营状态差的银行掩盖风险,督促银行经营者加强风险控制。     

Market discipline of banks: Why are yield spreads on bank-issued subordinated notes and debentures not sensitive to bank risks?

The default risk sensitivity of yield spreads on bank-issued subordinated notes and debentures (SNDs) decreased after banks started issuing trust-preferred securities (TPS). The too-big-to-fail (TBTF) discount on yield spreads is absent prior to the LTCM bailout, but the size discount doubles after the LTCM bailout. Prior to TPS issuance and the LTCM bailout, SND yield spreads are sensitive to conventional firm-specific default risk measures, but not after the bailout. We find paradigm shift in determinants of yield spreads after the LTCM bailout. Yield spreads on TPS are sensitive to default risks and can provide an additional source of market discipline.     

Estimating systemic risk in the international financial system

This paper develops three distinct methods to quantify the risk of a systemic failure in the global banking system. We examine a sample of 334 banks (representing 80% of global bank equity) in 28 countries around five global financial crises. Our results suggest statistically significant, but economically small, increases in systemic risk. Although policy responses are endogenous, the low estimated probabilities suggest that the distress of central bankers, regulators and politicians about the events we study could be overstated and that current policy responses to financial crises could be adequate to handle major macroeconomic events.     

On the marketing of IPOs

Derrien [2005. Journal of Finance 60, 487–521] and Ljungqvist et al. [2006. Journal of Business] build upon the work of Miller [1977. Journal of Finance 32, 1151–1168] and claim that issuers and the regular customers of investment bankers benefit from the presence of sentiment investors (noise traders) in the market for an initial public offering (IPO). Thus we argue that investment bankers have an incentive to promote an IPO to induce sentiment investors into the market for it. Consistent with this motivation and these models, we expect that the promotional efforts of investment bankers should influence the compensation of investment bankers, the valuation of an IPO, its initial returns and trading, the wealth gains of insider shareholders, and the likelihood that an issuer switches investment bankers for a subsequent seasoned equity offering. Examining data for a sample of IPOs from 1993 through 2000, we find evidence consistent with these predictions and so with the proposition that an investment banker's ability to market an IPO to sentiment investors is important.