the economics of a blend mandate for biofuels a biofuel blend mandate may increase or decrease consumer fuel prices with endogenous oil prices depending on relative supply elasticities biofuel tax credits always reduce fuel prices tax credits result in lower fuel prices than under a mandate for the same level of biofuel production if tax credits are implemented alongside mandates then tax credits subsidize fuel consumption instead of biofuels this contradicts energy policy goals by increasing oil dependency co 2 emissions and traffic congestion while providing little benefit to either corn or ethanol producers these social costs will be substantial with tax credits costing taxpayers 28 7 billion annually by 2022 copyright 2008 oxford university press

capital requirements and bank behaviour empirical evidence for switzerland abstract in recent years regulators have increased their focus on the capital adequacy of banking institutions to enhance the stability of the financial system the purpose of the present paper is to shed some light on whether and how swiss banks react to constraints placed by the regulator on their capital building on previous work by shrieves and dahl cf shrieves r e dahl d 1992 the relationship between risk and capital in commercial banks journal of banking and finance 16 439 457 we use a simultaneous equations model to analyse adjustments in capital and risk at swiss banks when those approach the minimum regulatory capital level our results indicate that regulatory pressure induce banks to increase their capital but does not affect the level of risk

the effectiveness of bank capital adequacy regulation a theoretical and empirical approach the aim of this paper is to analyse how banking firms set their capital ratios that is the rate of equity capital over assets in order to study this isue two theoretical models are developed both models deal with the existence of an optimal capital ratio the first one for firms not affected by capital adequacy regulation the second one for firms which are the models have been tested by estimating a disequilibrium model using data of spanish savings banks

demand elasticities for food products in brazil a two stage budgeting system the object of this article is to estimate demand elasticities for a basket of staple food important for providing the caloric needs of brazilian households these elasticities are useful in the measurement of the impact of structural reforms on poverty a two stage demand system was constructed based on data from household expenditure surveys pof produced by ibge the brazilian bureau of statistics in 1987 88 and 1995 96 we have used panel data to estimate the model and have calculated income own price and cross price elasticities for eight groups of goods and services and in the second stage for 11 sub groups of staple food products we estimated those elasticities for the whole sample of consumers and for two income groups

who pays and who gains from fuel policies in brazil abstract brazil has pursued a mix of policy interventions in the fuel sector to achieve multiple objectives of economic and social development promoting biofuels and reducing dependence on oil we develop an economic framework to provide insight on the fuel policy choices in brazil and to analyze the trade offs they have engendered in the fuel and sugar sectors we also examine their distributional impacts on producers and consumers in the sugar oil and biofuel sectors and on government revenues additionally we undertake a normative analysis for the purpose of comparing the welfare and environmental impacts of existing policies with those justified by the goal of maximizing social welfare and addressing market failure the ex post analysis of the outcomes for different stakeholders in the fuel and sugar sectors provides insights on the likely political economic factors guiding policy choices we find that the status quo policies are likely to have been motivated by the objectives of increasing oil exports raising government revenue and promoting rural development through the sugarcane sector and have had a significant adverse effect on fuel and sugar consumers aggregate social welfare and greenhouse gas emissions in brazil

theories of bank behavior under capital regulation abstract this paper reviews academic studies of bank capital regulation in an effort to evaluate the intellectual foundation for the imposition of the basel i and basel ii systems of risk based capital requirements the theoretical literature yields general agreement about the immediate effects of capital requirements on bank lending and loan rates and the longer term impacts on bank ratios of equity to total or risk adjusted assets this literature produces highly mixed predictions however regarding the effects of capital regulation on asset risk and overall safety and soundness for the banking system as a whole thus the intellectual foundation for the present capital regulation regime is not particularly strong the mixed conclusions in the academic literature on banking certainly do not provide unqualified support for moving to an even more stringent and costly system of capital requirements these widely ambiguous results do suggest however that assessing the implications of capital regulation for balance sheet risk and monitoring effort in diverse banking systems is an important agenda for future theoretical research in the banking area

on a tight leash does bank organizational structure matter for macroprudential spillovers abstract this paper examines whether the organizational form of multinational banks foreign affiliates affects cross border spillovers of macroprudential regulation we compare changes in the growth of lending provided by foreign banks branches versus subsidiaries in the united kingdom in response to changes in capital requirements lending standards and reserve requirements in foreign banks home countries our results suggest that a tightening of capital requirements at home reduces uk branches interbank lending growth by 5 7 pp more relative to subsidiaries we link this effect to the higher degree of control which parent banks hold over operations of their foreign branches compared to subsidiaries supporting this hypothesis a set of further tests illustrates that the response of foreign affiliates operating under a branch structure is stronger where parent banks are more likely to delegate more decision making authority to the board of directors of their subsidiaries

assessing credit risk in a financial institution s off balance sheet commitments the first part of this paper presents a general approach to valuing a financial institution s contracts when there is credit risk the approach uses contingent claims pricing theory and is particularly appropriate for an off balance sheet contract such as a swap that can have either a positive or a negative value to the counterparty the second part of the paper extends the analysis by considering the problem faced by bank supervisory authorities of determining capital requirements for off balance sheet contracts

taxes and bank capital structure this paper shows that a reduction in tax discrimination between debt and equity funding leads to better capitalized financial institutions the paper exploits exogenous variation in the tax treatment of debt and equity created by the introduction of a tax shield for equity the results demonstrate that a more equal treatment of debt and equity increases bank capital ratios driven by an increase in common equity the change also leads to a significant reduction in risk taking for ex ante low capitalized banks overall the findings suggest that tax shields could be a valuable and innovative policy tool for bank regulators

the economic consequences of extending the use of fair value accounting in regulatory capital calculations we investigate the economic consequences of the basel iii requirement to include unrealized fair value gains and losses on available for sale afs securities in regulatory capital using data for u s banks we find negative market reactions around news indicating an increased likelihood of this regulatory change being implemented consistent with increased regulatory costs we also find that banks affected by this regulation reduce their investment in risky afs securities relative to unaffected banks this result suggests that extending the use of fair values for regulatory purposes reduces ex ante risk taking

does the basle capital accord reduce bank fragility an assessment of the value at risk approach abstract we examine the economic implications arising from a bank using a var constrained mean variance model for the selection of its trading portfolio as a consequence of the basle capital accord surprisingly we show that when a var constraint is imposed it is plausible that certain banks will end up selecting riskier portfolios than they would have chosen in the absence of the constraint accordingly regulators such as the basle committee on banking supervision should be aware that allowing a bank to use var to determine its minimum regulatory capital may increase its fragility alternatives to var based bank capital regulation that mitigate or even preclude its perverse implications are presented

how bank capital buffers vary across countries the influence of cost of deposits market power and bank regulation abstract this paper analyzes the bank and country determinants of capital buffers using a panel data of 1337 banks in 70 countries between 1992 and 2002 after controlling for adjustment costs and the endogeneity of explanatory variables the results show that capital buffers are positively related to the cost of deposits and bank market power although the relations vary across countries depending on regulation supervision and institutions their impact is the result of two generally opposing effects restrictions on bank activities and official supervision reduce the incentives to hold capital buffers by weakening market discipline but at the same time they promote higher capital buffers by increasing market power institutional quality has the two opposite effects better accounting disclosure and less generous deposit insurance however have a clear positive effect on capital buffers by both strengthening market discipline and making charter value better able to reduce risk taking incentives

are bank capital ratios pro cyclical new evidence and perspectives this paper analyses how the new basel iii leverage ratio and risk weighted regulatory capital ratio behave over the cycle the analysis proposes a set up to test for the cyclical properties of bank capital ratios taking into account structural shifts in banks behaviour during the global financial crisis and its aftermath using a large data set covering international banks headquartered in 14 advanced economies for the period 1994 2012 we find that the basel iii leverage ratio is significantly more countercyclical than the risk weighted regulatory capital ratio it is a tighter constraint for banks in booms and a looser constraint in recessions

bayesian models for early warning of bank failures the focus of this research is to demonstrate how probabilistic models may be used to provide early warnings for bank failures while prior research in the auditing literature has recognized the applicability of a bayesian belief revision framework for many audit tasks empirical evidence has suggested that auditors cognitive decision processes often violate probability axioms we believe that some of the well documented cognitive limitations of a human auditor can be compensated by an automated system in particular we demonstrate that a formal belief revision scheme can be incorporated into an automated system to provide reliable probability estimates for early warning of bank failures the automated system examines financial ratios as predictors of a bank s performance and assesses the posterior probability of a banks financial health alternatively financial distress we examine two different probabilistic models one that is simpler and makes more assumptions while the other that is somewhat more complex but makes fewer assumptions we find that both models are able to make accurate predictions with the help of historical data to estimate the required probabilities in particular the more complex model is found to be very well calibrated in its probability estimates we posit that such a model can serve as a useful decision aid to an auditor s judgment process

assessing the risk return trade off in loan portfolios abstract this paper proposes a methodology to analyse the risk and return of large loan portfolios in a joint setting i propose a tractable model to obtain the distribution of loan returns from observed interest rates and default frequencies i follow a sectoral approach that captures the heterogeneous cyclical features of different kinds of loans and yields moments in closed form i investigate the validity of mean variance analysis with a value at risk constraint and study its relationship with utility maximisation finally i study the efficiency of corporate and household loan portfolios in an empirical application to the spanish banking system

impacts of us biodiesel mandates on world vegetable oil markets abstract in this paper we seek to understand the impact of expanded use of soybean oil biodiesel to address biofuel mandates on global vegetable oil markets and in particular on the demand for palm oil an open economy equilibrium model is derived to investigate the market effects of biodiesel expansion on related energy and vegetable oil markets the model is calibrated to represent the recent benchmark data in calendar year 2014 the simulation estimates suggest that the expanded use of soy oil for biodiesel in the us will have considerable impacts on world vegetable oil markets the majority of the vegetable oil replacement is likely to occur through substitution of palm oil under a wide range of plausible elasticity values on the demand for vegetable oil and the demand substitution between soy oils and palm oils

welfare impacts of alternative biofuel and energy policies an open economy equilibrium model is derived to investigate the effects of energy policy on the u s economy with emphasis on corn based ethanol a second best policy of a fuel tax and ethanol subsidy is found to approximate fairly closely the welfare gains associated with the first best policy of an optimal carbon tax and tariffs on traded goods the largest economic gains to the u s economy from these energy policies arise from their impact on u s terms of trade particularly in the oil market conditional on the current fuel tax an optimal ethanol mandate is superior to an optimal ethanol subsidy copyright 2011 oxford university press

the impact of interest rate risk on bank lending abstract this paper analyzes the transmission of realized interest rate risk to bank lending it exploits unique supervisory information about the interest rate risk exposure of swiss banks net of hedging by weakening the banks economic capital realized interest rate risk explains on average around one eighth or 30 basis points of the predicted total reduction in cumulative loan growth a year after an upward shock in nominal rates by one percentage point moreover heterogeneity in exposures implies that the effects would differ across institutions finally bank lending is mainly driven by the banks capital rather than their liquidity situation

managing efficient capital allocation with emphasis on the chinese experience responsible risk management is central to banking ethics with the 1999 publication of the basel committee s proposal basel ii for a new capital accord to replace the 1988 agreement basel i an attempt has been made to address the problem of correlating banks risk management with their capital requirements the basel ii framework finalised in june 2004 is designed to improve risk management by using models based on past performance to help set the amount of capital banks are required to hold by regulators with the purpose of improving the efficiency of capital allocation the objectives of this study are to investigate how banks generally but particularly those located in china could improve their risk management systems and what the implications of these new regulations are for them three relevant propositions were formulated namely basel ii will improve risk management basel ii will improve capital allocation efficiency and compliance with advanced risk management systems is biased in favour of the large banks evidence was assembled with which to evaluate these three propositions by gathering relevant primary data by means of a representative survey of chinese banking executives involved in risk management the findings strongly support the first two of the above propositions and partly support the third proposition

opacity and risk taking evidence from norway abstract this paper investigates how balance sheet opacity affects banks risk taking behavior we measure bank balance sheet opacity according to two metrics the ratio of available for sale afs securities and the ratio of off balance sheet items we show that balance sheet opacity is positively correlated with realized bank risk specifically banks with more afs securities have lower realized risk while banks with more off balance sheet items have higher realized risk the correlation between opacity and risk depends on both macroeconomic variables and bank characteristics the positive relationship between bank opacity and bank risk is weaker for better capitalized banks and banks that are subject to more market discipline the relationship is also weaker during periods of favorable market conditions motivated by this analysis we then investigate how regulation affects bank opacity we show that higher capital requirements reduce bank opacity and bank risk through a portfolio rebalancing channel

risk based capital requirements and bank portfolio risk abstract we construct a linear programming model and analyze the effectiveness of r b capital adequacy standards when bank deposits are fully insured we derive a set of optimal asset risk weights given a constraint in raising equity and using these weights the r b capital plan is an effective regulation mechanism without a constraint on equity maximum leverage restrictions and r b capital plans are mutually exclusive alternatives as we deviate from the optimal risk weights a combination of a leverage restriction and a r b equity ratio seems to be the more appropriate approach to controlling bank portfolio risk

banks buffer capital how important is risk abstract most banks hold a capital to asset ratio well above the required minimum defined by the present capital adequacy regulation basel i using bank level panel data from norway important hypotheses concerning the determination of this buffer capital are analyzed focus is on the importance of i risk ii the buffer as an insurance iii the competition effect iv supervisory discipline and v economic growth a negative or non significant risk effect is found which suggests that introducing a more risk sensitive capital regulation basel ii is likely to affect norwegian banks support is found for the hypothesis that buffer capital serves as an insurance against failure to meet the capital requirements

the impact of regulation on bank equity infusions abstract this article examines the extent to which regulatory capital standards influence infusions of external equity into commercial banks while such infusions occur infrequently they result in large adjustments to overall bank capital and provide important signals to regulators of managerial intent using a sample of 753 equity capital issues occurring during 1986 and 1987 we find evidence that regulatory minimum capital constraints are instrumental in influencing the financing decisions made by a significant subset of banks

understanding the shift from micro to macro prudential thinking a discursive network analysis macro prudential thinking and its emphasis on endogenously created systemic risks marginal in the banking regulation discourse until the mid 2000s has become central post crisis this paper analyzes this intellectual shift by using discourse and citation network analysis of the most cited scholarly works on banking regulation and systemic risk from 1985 to 2014 and six in depth interviews with central scholars it demonstrates that the predominance of formalism particularly partial equilibrium analysis in studies on banking regulation pre crisis impeded economists engagement with the endogenous sources of systemic risks discussed in the systemic risk sample these studies excluded observed phenomena that could not be accommodated in mathematical models largely ignoring contributions based on historical and practitioners styles of reasoning post crisis while informal analyses gain prominence in studies on banking regulation attempts to conceptualize systemic risk as a negative externality indicate the persistence of formalism and equilibrium thinking and its concomitant epistemological limitations that stymie theoretical progress

bank regulation and international financial stability a case against the 2006 basel framework for controlling tail risk in trading books abstract in attempting to promote international financial stability the basel committee on banking supervision 2006 provided a framework that sought to control the amount of tail risk that large banks around the world would take in their trading books relative to their corresponding minimum capital requirements however many of these banks suffered significant trading losses during the recent financial crisis our paper examines whether the basel framework allowed banks to take substantive tail risk in their trading books without a capital requirement penalty we find that it allowed banks to do so and that its minimum capital requirements can be notably procyclical hence focusing on the way the basel framework sought to control the amount of tail risk in trading books relative to their corresponding minimum capital requirements our paper supports the view that it was not properly designed to promote financial stability we also discuss alternative regulatory frameworks that would potentially be more effective than the basel framework in preventing banks from taking substantive tail risk in their trading books without a capital requirement penalty

bank regulation risk and return evidence from the credit and sovereign debt crises in this paper we analyze whether regulation reduced risk during the credit crisis and the sovereign debt crisis for a cross section of global banks in this regard we examine distance to default laeven and levine 2008 systemic risk acharya et al 2010 idiosyncratic risk and systematic risk we employ world bank survey data on regulations to test our conjectures we find that regulatory restrictions official supervisory power capital stringency along with private monitoring can explain bank risk in both crises additionally we find that deposit insurance schemes enhance moral hazard as this encouraged banks to take on more risk and perform poorly during the sovereign debt crisis finally official supervision and private monitoring explains the returns during both crisis periods

do capital adequacy requirements reduce risks in banking abstract in a dynamic framework it is shown that capital adequacy rules may increase a bank s riskiness in addition to the standard negative effect of rents on risk attitudes of banks a further intertemporal effect has to be considered the intuition behind the result is that under binding capital requirements an additional unit of equity tomorrow is more valuable to a bank if raising equity is excessively costly the only possibility to increase equity tomorrow is to increase risk today

fuel demand in brazil in a dynamic panel data approach abstract the purpose of this paper is to evaluate the sensitivity of fuel consumers regarding price and income taking recent changes in the brazilian fuel market into account in this market new market rules energy policy towards fuel diversification and introduction of flex fuel engines have determined fuel competition among gasoline ethanol and compressed natural gas using a dynamic panel data model demand equations for these three fuels are econometrically estimated to obtain consumer adjustment coefficients price cross price and income elasticities in the short and long run in addition the effect of the introduction of flex fuel engines in the market and the rationality of consumers towards efficiency constraints of the engines were tested apart from considerable competition results show that the dynamics of the brazilian fuel market revolves around ethanol instead of gasoline while demands for gasoline and natural gas are inelastic to price demand for ethanol is elastic in brazil furthermore after the introduction of the flex fuel technology the sensitivity of consumers to fuel prices changed and ethanol consumers take efficiency constrains into account when ethanol prices reach the threshold of 70 of gasoline prices

a note on the stock market effects of the adoption of risk based capital requirements on international banks in different countries abstract the present note provides empirical evidence on the relative competitive effects of the adoption of risk based capital requirements on large international banks in the u s canada u k and japan a two index regression model is used to calculate prediction errors in periods with numerous announcements concerning the new capital rules including the basle conference we find significant declines in equity returns for u s canadian and u k banks in response to news announcements with u s bank stocks exhibiting the largest negative reaction for japanese banks the equity return results are mixed which may be due to uncertainty among investors regarding the handling of their sizeable hidden reserves under the new risk adjusted capital rules

procyclical leverage and value at risk the availability of credit varies over the business cycle through shifts in the leverage of financial intermediaries empirically we find that intermediary leverage is negatively aligned with the banks value at risk var motivated by the evidence we explore a contracting model that captures the observed features under general conditions on the outcome distribution given by extreme value theory evt intermediaries maintain a constant probability of default to shifts in the outcome distribution implying substantial deleveraging during downturns for some parameter values we can solve the model explicitly thereby endogenizing the var threshold probability from the contracting problem

corruption soundness of the banking sector and economic growth a cross country study abstract this paper explores the impact of corruption on both the banking sector and economic growth we determine the impact using 76 macroeconomic data from various countries over the period 2002 2004 the results of various cross sectional regressions provide substantial evidence that corruption significantly aggravates the problems with bad loans in the banking sector in this study we also find some evidence of a new channel through which corruption lowers economic growth corruption distorts the allocation of bank funds from normal projects to bad projects which decreases the quality of private investments hence it decreases economic growth

variable rate deposit insurance a re examination abstract this paper investigates the impact of variable rate deposit insurance on the financial and real sectors of the economy and its role as an absorber of bankruptcy risk within these sectors a variable rate system raises the cost of funds to the real sector and increases probability of bankruptcy of the borrowing firms when such bankruptcies occur society experiences a dead weight loss we argue that appropriate deposit insurance pricing must weigh the social costs connected with both financial firm failure and real sector bankruptcy

technological change and the households demand for currency abstract it is shown that accounting for technology variations across households and periods is important to obtain theoretically consistent estimates of the demand for currency an inventory model is presented where the withdrawal technology is explicitly modeled both the level and the interest rate elasticity of cash holdings depend on the withdrawal technology available to households empirical proxies for the household withdrawal technology based on the diffusion of cash withdrawal points measured at city level are used to test the model predictions on a panel of italian household data over the 1993 2004 period

can regulators allow banks to set their own capital ratios abstract basel regulators have received widespread criticism for failing to prevent two credit crises that hit the u s over the last two decades nonetheless banks were considerably overcapitalized prior to the onset of the 2007 2009 subprime crisis compared to those which had undergone the 1990 1991 recession therefore if capital requirements were achieved prior to the subprime crisis how could the basel framework be blamed again for having accelerated if not caused another credit crunch we find that the answer to this question lies in the relationship between the capital ratio and the leverage ratio which is governed by risk weights categories determined by the basel regulation we show that changes to risk weight categories which affect the correlation pattern between both ratios are not reflected in the subprime crisis this minimizes the implication of the basel ii regulation in the crunch that succeeded its announcement in contrast to basel i we demonstrate that these dynamics are governed by a formula linking the two ratios together which derives from the sensitivity of the risk based capital ratio to a change in its risk weight s one implication of our work regarding the basel iii regulation consists in validating the newly established capital increments in a mathematical rather than heuristical approach

credit provision and banking stability after the great financial crisis the role of bank regulation and the quality of governance abstract in response to the great financial crisis gfc bank regulatory regimes were tightened world wide to strengthen banking stability and the resilience of the banking sectors yet it is often claimed that regulatory tightening may lead banks to cut back on lending and comes at the cost of a lower loan supply the present paper uses a country panel for 50 advanced and emerging market economies to analyze how the post crisis tightening in supervision and regulation affected aggregate bank stability and aggregate credit growth we find that higher capital buffers improved aggregate bank stability after the gfc whereas a strengthening of supervisory independence helped to reduce the decline in domestic credit and improved the stability of banks both effects have been stronger for countries with relatively poor institutions thus our results suggest that bank supervision regulation and institutions tend to be substitutes rather than complements

second best biofuel policies and the welfare effects of quantity mandates and subsidies abstract the quest for biorenewable energy sources is held to justify a number of government interventions including support policies for biofuels such as those responsible for the recent rapid growth of us ethanol production this article provides an analytical assessment of such policies we construct a general equilibrium open economy model that captures the rationale typically invoked to justify government intervention in this setting to alleviate the environmental impact of energy consumption and to decrease us energy dependence on foreign sources the model is used to study both the positive and normative implications of alternative policy instruments including the subsidies and mandates specified by the 2007 energy independence and security act from a positive perspective we find that biofuels mandates are equivalent to a combination of fuel taxes and biofuels subsidies that are revenue neutral from a welfare perspective we show that biofuels mandates dominate biofuels subsidies and that combining fuel taxes with mandates would be welfare enhancing

risk in banking and capital regulation this paper investigates the role of bank capital regulation in risk control it is known that banks choose portfolios of higher risk because of inefficiently priced deposit insurance bank capital regulation is a way to redress this bias toward risk utilizing the mean variance model the following results are shown a the use of simple capital ratios in regulation is an ineffective means to bound the insolvency risk of banks b as a solution to problems of the capital ratio regulation the theoretically correct risk weights under the risk based capital plan are explicitly derived and c the theoretically correct risk weights are restrictions on asset composition which alters the optimal portfolio choice of banking firms the recent increase in bank failures especially after the 1980 and 1982 deregulatory acts has again ignited a controversy over the risk portfolio of the banking industry given the importance of this sector there has been increased scrutiny of the industry s motives for risk taking and possible regulatory changes to improve its stability these investigations have centered around two rather complementary areas the first of these is the role of deposit insurance and how its current pricing procedure encourages risk taking and justifies current bank regulations the works of buser chen and kane 4 kane 9 and benston et al 2 have made substantive contributions the authors demonstrates the way in which our current fixed rate insurance system rewards risk taking by the firm and insulates it through deposit insurance from the market discipline that needs to exist to ensure proper risk evaluation this realization has led these authors to propose a series of regulatory changes to encourage proper portfolio choice within the industry these include a shift to market value accounting risk based deposit insurance premiums and additional capital regulation the last of these serves as a method of coinsurance whereby higher capital levels require the bank to absorb greater losses in the event of failure and encourage additional prudence in management in essense it is one method of risk reduction that may offset the risk preference imposed on the industry due to the inappropriate insurance pricing because the amount of capital influences the probability of bank insolvency and thus the soundness of the entire banking system the regulators ceteris paribus prefer more capital to

federal deposit insurance regulatory policy and optimal bank capital this paper seeks to explain the combination of explicit and implicit pricing for deposit insurance employed by the fdic essentially the fdic sells two products insurance and regulation to span the product space it must and does set two prices we argue that the need to establish regulatory disincentives to bank risk taking is the heart of the controversy over the adequacy of bank capital and that the ability to close risky banks before exhausting their charter value i e the value of their right to continue in business stands at the center of these disincentives and in front of the fdic s insurance reserves just as a book shouldn t be judged by its cover a government agency shouldn t be judged by the words behind its initials with the fdic federal deposit insurance corporation the agency s name describes only part of its formal operations the fdic is quasi governmental has a regional structure and sells deposit insurance however the initials fail to convey the fdic s critical place in the governmental regulatory structure as the sole federal overseer of the approximately 8900 state chartered commercial banks that have chosen not to belong the federal reserve system reflecting the federal reserve s membership problem the number of these banks is growing year by year besides selling deposit insurance at bargain explicit rates the fdic performs four regulatory functions 1 entry regulation it passes on new banks applications for deposit insurance and on branch and merger proposals as well thereby protecting the value of existing bank charters 2 examination two thirds of fdic employees are concerned with inspecting bank records and supervising managerial activity 3 regulation of deposit rates and conditions for withdrawal by tradition fdic policies on these matters conform entirely with regulations applicable to federal reserve member banks and 4 disposition of failed banks when an insured bank fails the fdic usually chooses not to liquidate it 2

the cyclicality of bank regulation in a general economic framework this article utilizes a representative agent model to address how the regulation policies for banks should respond to the general economic condition with the consideration of a self fulfilling deposit insurance facility with sufficient bank reserve to meet the expected need of liquidity shock our model suggests a counter cyclical capital adequacy requirement in a competitive loan market the exception might occur when the moral hazard problem becomes very unwieldy and the representative individual is rather risk averse with regard to the closure policy we find that it is closely related to the individual s degree of risk aversion a counter cyclical closure policy is recommended when the individual is highly risk averse otherwise a pro cyclical closure policy is preferred

bank capital and equity investment regulations abstract this paper uses an intermediation model to study the efficiency and welfare implications of both banks minimum required capital asset ratio and the regulation that limits and in some countries forbids banks investments in the equity of nonfinancial firms there are two sources of moral hazard in the model one between the bank and the provider of deposit insurance and the other between the bank and an entrepreneur who demands funds to finance an investment project among other things the paper shows that capital regulation improves the bank s stability and can also be pareto improving equity regulation is never pareto improving and does not increase the bank s stability

the effects of closure policies on bank risk taking abstract this paper models bank closure policy for a risk averse bank that enjoys flat rate deposit insurance we find that increasing the level of net worth at which banks are closed can increase or decrease induced risk aversion as well as increase the likelihood that marginally healthy banks would be subject to extreme moral hazard these result suggest that more timely closure policies should be imposed in conjunction with greater monitoring of bank portfolio risk and with restrictions on risk taking for marginally healthy banks in addition we find that changes in closure policy can increase or decrease desired leverage and that this effect depends on the degree of correlation among asset returns

or forum design of risk weights banking regulations set minimum levels of capital for banks these requirements are generally formulated through a ratio of capital to risk weighted assets a risk weighting scheme assigns a weight to each asset or category of assets and effectively functions as a linear constraint on a bank s portfolio choice it also changes the incentives for banks to hold various kinds of assets in this paper we investigate the design of risk weights to align regulatory and private objectives in a simple mean variance framework for portfolio selection by setting risk weights proportional to profitability rather than risk the regulator can induce a bank to reduce its overall level of risk without distorting its asset mix because the regulator is unlikely to know the true profitability of assets we introduce an adaptive formulation in which the regulator sets weights by observing a bank s portfolio the adaptive scheme converges to the same combination of weights and portfolio choice that would hold if the regulator knew the asset profitability we also investigate other objectives including steering banks to a target mix of assets adding robustness mitigating procyclicality and reducing system wide risk in a setting with multiple heterogeneous banks

short run long run and cross elasticities of gasoline demand in brazil gasoline is one of the most important of the oil derived products its importance is closely related to its participation in the value of imports of many countries and in a number of cases it is one of the determinants of their balance of payment deficit fiscal deficit and economic growth as opposed to most nations brazil has had a gasoline substitute since 1985 alcohol many studies have tried to estimate the income and price elasticities of the demand for gasoline in several countries this paper extends previous studies by estimating the cross price elasticity between gasoline and alcohol our findings indicate that alcohol is an imperfect substitute for gasoline even in the long run as a consequence the need for a new fuel substitution must be initiated long before petroleum reserves vanish

modeling the banking firm a survey this paper reports on the status of the literature on micro bank modeling and assesses our understanding of the banking firm s optimal behavior this is no mean task for much has been written on banking broadly defined over the past couple of decades the review is developed in pieces each major subproblem is outlined and the analysis used to deal with the issue explicated this is not the best way to summarize the development of a field it should be immediately recognized one would prefer to have a smooth continuum of development moving the frontier of knowledge evenly through time and across subareas yet this is rarely the way a field develops more likely individual questions attract attention and are the subjects of a substantial number of contributions after a time the field moves on to the new area of interest the banking field is no exception before embarking upon the review however a couple of lines should be devoted to previous attempts there have been essentially three first pyle 1972 analyzes the uncertainty portfolio models at a time when little existed in the literature and hence one finds the review a bit vague and sketchy baltensperger s contributions 1978 1980 are the next serious and rather extensive reviews the quality of these

capital requirements and the behaviour of commercial banks abstract i study the consequences of capital regulations on the portfolio choices of commercial banks elaborating on previous work by kareken and wallace 1978 koehn and santomero 1980 and kim and santomero 1988 i obtain the following results if the objective of commercial banks is maximization of the market value of their future profits value maximizing banks capital regulations cannot prevent banks from choosing very specialized and very risky portfolios risk based insurance premia are in fact the relevant instrument for that purpose on the other hand if banks behave as portfolio managers utility maximizing banks capital regulations can be effective but only if the weights used in the computation of the ratio are proportional to the systematic risks of the assets their betas because of limited liability of commercial banks a minimum capital regulation or a closing rule may become necessary as well to prevent failing banks from betting for resurrection

a comparison of the original and revised basel market risk frameworks for regulating bank capital abstract recognizing that many banks suffered trading losses that notably exceeded their minimum capital requirements during the recent crisis the basel committee on banking supervision 2011 revised its regulatory framework for trading portfolios in this paper we compare 1 the relative effectiveness of risk management systems based on the original and revised frameworks in controlling tail risk and 2 the relative adequacy of these frameworks in setting minimum capital requirements our main findings are as follows first both systems allow the selection of portfolios with substantive tail risk but one based on the revised framework tends to be less effective in controlling tail risk second the minimum capital requirements set by the revised framework are much less likely to be wiped out by trading losses than those set by the original framework hence on balance the revised framework improves upon the original framework we also suggest further improvements for consideration by bank regulators

banks debt and risk assessing the spillovers of corporate taxes we find evidence of tax driven strategic allocation of debt and asset risk across group entities of european banks we evaluate the effects that establishing tax neutrality between debt and equity finance has on systemic risk and show that the degree of coordination in implementing the hypothetical tax reform matters in particular a coordinated elimination of the tax advantage of debt would significantly reduce systemic losses in the event of a severe banking crisis by contrast uncoordinated tax reforms are not equally beneficial precisely because national tax policies generate spillovers through cross border bank activities jel g21 g28 h25

a reexamination of mean variance analysis of bank capital regulation abstract the mean variance framework has been used to analyze the effects of bank capital regulation on the asset and bankruptcy risk of insured utility maximizing banks this literature claims that more stringent capital regulation will increase asset risk and can increase bankruptcy risk these conclusions are notable because they are opposite to those obtained for insured value maximizing banks in this paper we show that the utility maximization literature does not support its conclusions regarding the effects of bank capital regulation because it has mischaracterized the bank s investment opportunity set by neglecting the option value of deposit insurance

mean variance portfolio selection with at risk constraints and discrete distributions we examine the impact of adding either a var or a cvar constraint to the mean variance model when security returns are assumed to have a discrete distribution with finitely many jump points three main results are obtained first portfolios on the var constrained boundary exhibit k 2 fund separation where k is the number of states for which the portfolios suffer losses equal to the var bound second portfolios on the cvar constrained boundary exhibit k 3 fund separation where k is the number of states for which the portfolios suffer losses equal to their vars third an example illustrates that while the var of the cvar constrained optimal portfolio is close to that of the var constrained optimal portfolio the cvar of the former is notably smaller than that of the latter this result suggests that a cvar constraint is more effective than a var constraint to curtail large losses in the mean variance model 2007 elsevier b v all rights reserved

the risk of financial intermediaries this paper reconsiders the formal estimation of bank risk using the variability of the profit function in our model point estimates of the variability of profits are derived from a model where this variability is endogenous to other bank characteristics such as capital and liquidity we estimate the new model on the entire panel of us banks spanning the period 1985q1 2012q4 the findings show that bank risk was fairly stable up to 2001 and accelerated quickly thereafter up to 2007 we also establish that the risk of the relatively large banks and banks that failed in the subprime crisis is higher than the industry s average thus we provide a new leading indicator which is able to forecast future solvency problems of banks

deposit insurance and subsidized recapitalizations the 2007 2009 financial crisis saw a vast expansion in deposit insurance guarantees around the world and yet our understanding of the design and consequences of deposit insurance schemes is in its infancy we provide a new rationale for the provision of deposit insurance in our model the banking sector exhibits both adverse selection and moral hazard which implies that the social benefits of bank monitoring must for incentive reasons be shared between depositors and banks consequently socially too few deposits are made in equilibrium deposit insurance or equivalently bank recapitalization corrects this market failure we find that deposit insurance should be funded not by banks or depositors but out of general taxation the optimal level of deposit insurance varies inversely with the quality of the banking system hence when the soundness of the financial sector is uncertain governments should consider supporting deposit insurance schemes and undertaking subsidized recapitalizations

the macroeconomic implications of financial deregulation abstract this paper explores the possible macroeconomic consequences of financial deregulation in an institutional environment where deregulation raises risks in banking the central bank is supposed to maximize an objective function in which the probability of bank failure is an argument it is then shown that the usual tradeoffs between policy objectives imply that financial deregulation will lead to more interest rate smoothing than would otherwise take place and further that because of restricted entry into banking deregulation will call for some inflation the transition toward deregulation raises special problems which are likely to require a more gradual approach toward the stationary equilibrium

deposit insurance and regulatory forbearance are caps on insured deposits optimal considerable academic and public policy attention has been focused on the deposit insurance contract and in particular its mispriced deposit insurance premium this has resulted in a burgeoning literature on the optimal pricing of deposit insurance guarantees see merton 1977 1978 pyle 1983 ronn and verma 1986 acharya and dreyfus 1989 and allen and saunders 1993 for examples in addition other authors have studied the ability of uninsured depositors or debtholders to provide market discipline in the form of marketbased risk premia in the absence of explicit risk based insurance premia see for example ellis and flannery 1989 and avery belton and goldberg 1988 however a third control instrument namely the setting of ceilings or caps on the amount of deposit insurance coverage has not been subject to rigorous investigation in particular while the fdic 1989 and others have considered the general pros and cons of limiting the scope of deposit insurance for instance by lowering the 100 000 ceiling on the amount of insurance per account or by restricting the brokering in of deposits l no formal analysis of the role of coverage caps can be

the impact of international information disclosure requirements on market discipline abstractfinancial regulators are challenged with finding the most efficient and effective ways to monitor banks given an expanding and complex international financial system market discipline has grown in importance as a way to discourage banks from taking on unnecessary risk one of the main drivers of market discipline is information disclosure while the literature on market discipline is expansive there are no known studies on the impact of individual information disclosure requirements on market discipline our study investigates which specific disclosure requirements influence financial investors to discipline banks and which do not we find that information disclosure requirements primarily reduce or have no impact on market discipline practices

measuring global gasoline and diesel price and income elasticities abstract price and income elasticities of transport fuel demand have numerous applications they help forecast increases in fuel consumption as countries get richer they help develop appropriate tax policies to curtail consumption help determine how the transport fuel mix might evolve and show the price response to a fuel disruption given their usefulness it is understandable why hundreds of studies have focused on measuring such elasticities for gasoline and diesel fuel consumption in this paper i focus my attention on price and income elasticities in the existing studies to see what can be learned from them i summarize the elasticities from these historical studies i use statistical analysis to investigate whether income and price elasticities seem to be constant across countries with different incomes and prices although income and price elasticities for gasoline and diesel fuel are not found to be the same at high and low incomes and at high and low prices patterns emerge that allow me to develop suggested price and income elasticities for gasoline and diesel demand for over one hundred countries i adjust these elasticities for recent fuel mix policies and suggest an agenda of future research topics

why basel ii may need a leverage ratio restriction abstract we analyze regulatory capital requirements where the amount of required capital depends on the level of risk reported by the banks it is shown that if the supervisors have a limited ability to identify or to sanction dishonest banks an additional risk independent leverage ratio restriction may be necessary to induce truthful risk reporting the leverage ratio helps to offset the banks potential capital savings of understating their risks by i reducing banks put option value of limited liability ex ante and by ii increasing the banks net worth which in turn enhances the supervisors ability to sanction banks ex post

an experimental exploration of self fulfilling banking panics their occurrence persistence and prevention this article tests the possibility and the degree of persistence of self fulfilling banking panics through an experimental protocol panics are proved to be persistent phenomena that are difficult to prevent however it seems possible to curb them through a learning effect caused by a temporary but sufficient suspension of the deposit availability combined with a narrow banking solution which makes banks more liquid additionally panic prevention requires a full deposit coverage to be effective this suggests that the moral hazard issue should not be tackled through a lower deposit coverage especially in emerging countries banking systems where depositors are likely to lose confidence

when more is less using multiple constraints to reduce tail risk abstract financial institutions suffered large trading losses during the 2007 2009 global financial crisis these losses cast doubt on the effectiveness of regulations and risk management systems based on a single value at risk var constraint while some researchers have recommended using conditional value at risk cvar to control tail risk var remains popular among practitioners and regulators accordingly our paper examines the effectiveness of multiple var constraints in controlling cvar under certain conditions we theoretically show that they are more effective than a single var constraint furthermore we numerically find that the maximum cvar permitted by the constraints is notably smaller than with a single constraint these results suggest that regulations and risk management systems based on multiple var constraints are more effective in reducing tail risk than those based on a single var constraint

maintaining adequate bank capital an empirical analysis of the supervision of european banks abstract during the recent financial crisis many large banks losses were absorbed by their sponsoring governments despite the fact that these banks complied with basel standards for adequate capital we illustrate a serious supervisory problem by demonstrating that large european banks reported regulatory capital measures often far exceeded their loss absorbing capacity during 1997 2011 the cumulative value of government guarantees thereby extended to the largest 25 european banks over that period amounts to nearly 1 4 trillion corresponding to an average of 28 5 of the banks equity market values we show that early regulatory attention to declining equity value can substantially reduce the social cost of dealing with bank losses this research is particularly relevant for european institutions at the present time as the european union deals with joint solvency concerns about its banks and its governments

macroeconomic impact of basel iii evidence from a meta analysis abstract we present a meta analysis of the impact of higher capital requirements imposed by regulatory reforms on the macroeconomic activity basel iii the empirical evidence derived from a unique dataset of 48 primary studies indicates that there is a negative albeit moderate gdp effect in response to a change in the target capital ratio meta regression results suggest that the estimates reported in the literature tend to be systematically influenced by a selected set of study characteristics such as econometric specifications the authors affiliations and the underlying financial system finally we discuss the publication bias

optimal bank interest margin under capital regulation and deposit insurance this paper examines the relationships among capital regulation deposit insurance and the optimal bank interest margin in a model where loan losses are the source of uncertainty changes in capital regulation or deposit insurance premiums have direct effects on the bank s interest margin an increase in bank capital requirement or in deposit insurance premiums results in a reduced interest margin under nonincreasing risk aversion comparative static analysis also explores the relation between asset quality and interest margin it is shown that a mean preserving spread of the distribution of loan losses results in a reduced margin

world crude oil and natural gas a demand and supply model abstract this paper examines world markets for crude oil and natural gas over the period 1918 1999 it analyzes the time series properties of output and prices and estimates demand and supply elasticities during 1918 1973 and 1973 1999 oil and gas prices were stable during the first period they became volatile afterwards reflecting deep changes in the market structure following the oil shock in 1973 demand price elasticities were too low however demand income elasticities were high supply price elasticities were also too low the elasticity estimates help to explain the market power of the oil producers and price volatility in response to shocks and corroborate elasticity estimates in energy studies

capital regulation and insured banks choice of individual loan default risks abstract how bankers choose the riskiness of their individual assets is an important question it is well known that fixed premium deposit insurance leads a bank to prefer a high variance asset portfolio but its effect on individual asset choice has not been carefully evaluated this paper demonstrates how bank examination procedures and capital adequacy standards can make the value of a bank s deposit insurance contract concave in individual asset risks insured bankers may therefore have a rational preference ceteris paribus for relatively safe individual loans even while they prefer risky portfolio returns the model s implications for loan securitization and the federal regulators new risk based capital standards are discussed

alternative transportation fuel standards welfare effects and climate benefits this paper develops an integrated model of the fuel and agricultural sectors to analyze the welfare and greenhouse gas emission ghg effects of the existing renewable fuel standard rfs a low carbon fuel standard lcfs and a carbon price policy the conceptual framework shows that these policies differ in the incentives they create for the consumption and mix of different types of biofuels and in their effects on food and fuel prices and ghg emissions we also simulate the welfare and ghg effects of these three policies which are normalized to achieve the same level of us ghg emissions by promoting greater production of food crop based biofuels the rfs is found to lead to a larger reduction in fossil fuel use but also a larger increase in food prices and a smaller reduction in global ghg emissions compared to the lcfs and carbon tax all three policies increase us social welfare compared to a no biofuel baseline scenario due to improved terms of trade even when environmental benefits are excluded global social welfare increases with a carbon tax but decreases with the rfs and lcfs due to the efficiency costs imposed by these policies even after including the benefits of mitigating ghg emissions

does risk aversion affect bank output loss the case of the eurozone abstract we propose a new model to infer the evolution of bank specific output losses due to the uncertainty in bank output prices losses are based on bank risk aversion with micro foundations tethered to the uncertainty regarding prices our model allows us to measure time varying bank specific output losses and risk aversion while taking into account all bank cross sectional heterogeneity we employ a panel data set to estimate the input and output elasticities with both parametric and non parametric techniques we are the first to document that increasing risk aversion among eurozone banks during the financial crisis resulted in sizable output losses although subdued thereafter losses have been resurging in recent years both conventional and unconventional monetary policy responses by the european central bank ecb mitigated uncertainty in bank output prices though unequally so across countries certain measures of unconventional monetary policy may have even enhanced bank risk aversion and thereby output losses but mainly so for large countries