the impact of fair trade certification for coffee farmers in peru smallholder farmers producing for fair trade market outlets are usually considered to benefit from better prices and stable market outlets however many empirical studies verifying this impact suffer from strong selection bias this study uses a balanced sample of fair trade farmers and likewise nonfair trade producers of organic and conventional coffee from peru to compare the net effects on production income and expenditures wealth and investments and attitudes and perceptions after careful matching we find only modest direct income and production effects but significant changes in organization input use wealth and assets and risk attitudes moreover important differences between farmers with early and more recent ft affiliation are registered

pricing the strategic value of putable securities in liquidity crises putable security holders have a de facto rst claim on the rm s liquid assets and can threaten to force solvent issuers to bear nancial distress costs their threatening power implies that the puts have a strategic value larger than their intrinsic value strategic value depends on the issuer s size potential distress costs and the distribution of put ownership relative to the rm s liquidity position the analysis of kmart s put induced crisis in 1995 and a calibration to observed secondary market yield reductions on poison put bonds shows that strategic value is an important determinant of payouts received by bondholders 2001 elsevier science s a all rights reserved

designing economic instruments for the environment in a decentralized fiscal system designing economic instruments for the environment when external effects are important markets will be inefficient and economists have considered several broad classes of economic instruments to correct these inefficiencies however the standard economic analysis has tended to neglect important distinctions and interactions between the geographic scope of pollutants the enforcement authority of various levels of government and the fiscal responsibilities of the levels of government for example externalities generated in a particular local area may be confined to the local area or may spill over to other jurisdictions also local governments may be well informed about how best to regulate or enforce pollution control within their jurisdiction but they may not consider the effects of their actions on other jurisdictions finally the existence of locally generated waste emissions affects the appropriate assignment of both expenditure and tax responsibilities among levels of government the standard analysis therefore focuses mainly upon an aggregate or national perspective it typically ignores the possibility that the externality may be created and addressed by local governments and it does not consider the implications of decentralization for the design of economic instruments targeted at environmental problems this paper examines the implications of decentralization for the design of corrective policies that is how does one design economic instruments in a decentralized fiscal system in which externalities exist at the local level and in which subnational governments have the power to provide local public services as well as to choose tax instruments that can both finance these expenditures and correct the market failures of externalities

instruments randomization and learning about development there is currently much debate about the effectiveness of foreign aid and about what kind of projects can engender economic development there is skepticism about the ability of econometric analysis to resolve these issues or of development agencies to learn from their own experience in response there is increasing use in development economics of randomized controlled trials rcts to accumulate credible knowledge of what works without overreliance on questionable theory or statistical methods when rcts are not possible the proponents of these methods advocate quasirandomization through instrumental variable iv techniques or natural experiments i argue that many of these applications are unlikely to recover quantities that are useful for policy or understanding two key issues are the misunderstanding of exogeneity and the handling of heterogeneity i illustrate from the literature on aid and growth actual randomization faces similar problems as does quasi randomization notwithstanding rhetoric to the contrary i argue that experiments have no special ability to produce more credible knowledge than other methods and that actual experiments are frequently subject to practical problems that undermine any claims to statistical or epistemic superiority i illustrate using prominent experiments in development and elsewhere as with iv methods rct based evaluation of projects without guidance from an understanding of underlying mechanisms is unlikely to lead to scientific progress in the understanding of economic development i welcome recent trends in development experimentation away from the evaluation of projects and toward the evaluation of theoretical mechanisms jel c21 f35 o19

bond pricing and the term structure of interest rates a new methodology for contingent claims valuation this paper presents a unifying theory for valuing contingent claims under a stochastic term structure of interest rates the methodology based on the equivalent martingale measure technique takes as given an initial forward rate curve and a family of potential stochastic processee for its subsequent movements a no arbitrage condition restricts this family of processes yielding valuation formulae for interest rate sensitive contingent claims which do not explicitly depend on the market prices of risk examples are provided to illustrate the key results in relation to the term structure of interest rates arbitrage pricing theory has two purposes the first is to price all zero coupon default free bonds of varying maturities from a finite number of economic fundamentals called state variables the second is to price all interest rate sensitive contingent claims taking as given the prices of the zero coupon bonds this paper presents a general theory and a unifying framework for understanding arbitrage pricing theory in this context of which all existing arbitrage pricing models are special cases in particular vasicek 1977 brennan and schwartz 1979 langetieg 1980 ball and torous 1983 ho and lee 1986 schaefer and schwartz 1987 and artzner and delbaen 1988 the primary contribution of this paper however is a new methodology for solving the second problem i e the pricing of interest rate sensitive contingent claims given the prices of all zero coupon bonds the methodology is new because i it imposes its stochastic structure directly on the evolution of the forward rate curve ii it does not require an inversion of the term structure to eliminate the market prices of risk from contingent claim values and iii it has a stochastic spot rate process with multiple stochastic factors influencing the term structure the model can be used to consistently price and hedge all contingent claims american or european on the term structure and it is derived from necessary and more importantly sufficient conditions for the absence of arbitrage the arbitrage pricing models of vasicek 1977 brennan and schwartz 1979 langetieg 1980 and artzner and delbaen 1988 all require an iformerly titled bond pricing and the term structure of interest rates a new methodology

credibility of propensity score matching estimates an example from fair trade certification of coffee producers abstractpropensity score matching psm is an increasingly popular method for evaluation studies in agricultural and development economics however statisticians and econometricians have stressed that results rely on untestable assumptions and therefore guidelines for researchers on how to improve credibility have been developed we follow one of these guidelines with a data set analysed by other authors to evaluate the impact of fair trade certification on the income of coffee producers we provide thereby a best practice example of how to evaluate the credibility of psm estimates we find that a thorough assessment of the assumptions made renders the data we use not suitable for a credible psm estimation of the effects of treatment we conclude that the debate about the impact of fair trade certification would greatly benefit from a detailed reporting of credibility checking

fiscal interactions and the costs of controlling pollution from electricity i quantify the costs of controlling so 2 carbon and nox emissions from power generation accounting for interactions between environmental policies and the broader fiscal system i distinguish a dirty technology coal that satisfies baseload demand and a clean technology gas that is used at peak period and i distinguish sectors with and without regulated prices estimated emissions control costs are substantially lower than in previous models of fiscal interactions that assume a single constant returns technology and competitive pricing the results are reasonably robust to alternative scenarios such as full price deregulation and market power in the deregulated sector

valuing risky fixed rate debt an extension this paper develops a corporate bond valuation model that takes into account both early default and interest rate risk it corrects a defect of recent contributions where pricing equations do not assure that the payment to bondholders upon bankruptcy is no greater than firm value the bankruptcy triggering mechanism is directly related to the payoff received by bondholders when early bankruptcy is forced upon the firm more specifically the default barrier is defined simply as a fixed quantity discounted at the riskless rate up to the maturity date of the risky corporate bond as soon as this threshold is crossed bondholders receive an exogenously specified fraction ofthe remaining assets deviations from the absolute priority rule also are captured because it accounts for gaussian interest rate uncertainty default risk and deviations from the absolute priority rule this model is capable of producing quite diverse shapes for the term structure of yield spreads

fiscal federalism and interjurisdictional externalities new results and an application to us air pollution abstract the economics of fiscal federalism has identified two book end departures from first best provision of a public good local governments may respond to local conditions but ignore inter jurisdictional spillovers alternatively central governments may internalize spillovers but impose uniform incentives ignoring local heterogeneity we provide a simple model that demonstrates that the choice of pricing policy also depends crucially on a third factor the shape of marginal costs of providing the public good if marginal costs are convex then marginal abatement cost elasticities will be higher around the local policies this increases the deadweight loss of those policies relative to the centralized policy ceteris paribus if they are concave then the opposite is true using a detailed simulation model of the us electricity sector we then empirically explore these tradeoffs for us air pollution we find that us states acting in their own interest lose about 31 5 of the potential first best benefits whereas the second best uniform policy loses only 0 2 of benefits the centralized policy outperforms the state policy for two reasons first inter state spillovers are simply more important that inter state heterogeneity in this application second because of the convexity of the marginal cost functions elasticities are much lower over the range relevant to the centralized policy dampening the distortions

an empirical investigation of u s firms in reorganization the purpose of this paper is to understand the institutional features of chapter 11 from an empirical examination of thirty firms that have emerged from reorganization we find the recontracting framework of chapter 11 to be complex lengthy and costly violations of absolute priority in favor of stockholders are frequently encountered these deviations may result from the bargaining process of chapter 11 or from a recontracting process between creditors and stockholders which recognizes the ability of stockholder oriented management to preserve firm value an example of such recontracting addresses myers underinvestment problem an investigation of the effects of chapter 11 on the pricing of risky debt is also provided the purpose of this paper is to understand the institutional features of chapter

designing climate mitigation policy this us paper provides an exhaustive review of critical issues in the design of climate mitigation policy by pulling together key findings and controversies from diverse literatures on mitigation costs damage valuation policy instrument choice technological innovation and international climate policy the authors begin with the broadest issue of how high assessments suggest the near and medium term price on greenhouse gases would need to be both under cost effective stabilization of global climate and under net benefit maximization or pigouvian emissions pricing the remainder of the paper focuses on the appropriate scope of regulation issues in policy instrument choice complementary technology policy and international policy architectures

pricing derivatives with barriers in a stochastic interest rate environment abstract this paper develops a general valuation approach to price barrier options when the term structure of interest rates is stochastic these products barriers may be constant or stochastic in particular we examine the case of discounted barriers at the instantaneous interest rate so in practice we extend rubinstein and reiner 1991 breaking down the barriers risk 4 8 28 35 who give closed form formulas for pricing barrier options in a black and scholes context to the case of a vasicek modeling of interest rates we are therefore in the situation of pricing barrier options semi explicitly or explicitly depending on the shape of the barrier with stochastic vasicek interest rates the model is illustrated with a specific contract an up and out call with rebate hence a typical barrier option this example is merely here to show how any standard barrier option can be priced and its greeks be obtained in such a context the validity of the approximation is analyzed and the sensitivity to the barrier level and to discretization schemes are also derived

structural recovery of face value at default abstract we carefully study the transmission mechanisms from default free rates to corporate bond prices within structural models of endogenous default risk the transmission critically depends on whether the model is value based or cashflow based on the assumptions made for the drift of the state variable and on the way the residual value at default is shared among bondholders the recovery assumption is crucial recovery of face value which entails receiving the same share of residual value at default regardless of the remaining maturity greatly helps explaining the empirical evidence on bond price sensitivities to interest rates

are the costs of reducing greenhouse gases from passenger vehicles negative energy models suggest that the costs of reducing carbon emissions from transportation are high relative to those for other sectors this paper discusses why taxes or equivalent permit systems to reduce passenger vehicle emissions produce large net benefits rather than costs when account is taken of a their impact on reducing other highway externalities besides carbon and b interactions with the broader fiscal system both of these considerations also strengthen the case for a tax based approach over fuel economy regulation while fiscal considerations strengthen the case for taxes over grandfathered emissions permits the paper also comments on the practical relevance of automobile fuel taxes or their policy equivalents to broader legislation intended to mitigate climate change

designing economic instruments for the environment in a decentralized fiscal system when external effects are important markets will be inefficient and economists have considered several broad classes of economic instruments to correct these inefficiencies however the standard economic analysis has tended to neglect important distinctions and interactions between the geographic scope of pollutants the enforcement authority of various levels of government and the fiscal responsibilities of the levels of government for example externalities generated in a particular local area may be confined to the local area or may spill over to other jurisdictions also local governments may be well informed about how best to regulate or enforce pollution control within their jurisdiction but they may not consider the effects of their actions on other jurisdictions finally the existence of locally generated waste emissions affects the appropriate assignment of both expenditure and tax responsibilities among levels of government the standard analysis therefore focuses mainly upon an aggregate or national perspective it typically ignores the possibility that the externality may be created and addressed by local governments and it does not consider the implications of decentralization for the design of economic instruments targeted at environmental problems this paper examines the implications of decentralization for the design of corrective policies that is how does one design economic instruments in a decentralized fiscal system in which externalities exist at the local level and in which subnational governments have the power to provide local public services as well as to choose tax instruments that can both finance these expenditures and correct the market failures of externalities

a survey of the economics of fair trade fair trade has spread in developing countries as an initiative aimed at lifting poor smallholder farmers out of poverty by providing them with premium prices availability of credit and improved community development and social goods fair trade is also viewed as a niche market for high value products in a context of globalization and trade liberalization policies that affect smallholder farmers in developing countries the question of whether fair trade affects the welfare of rural farmers however is particularly contentious this paper provides a review of the fair trade literature both theoretical and empirical with a specific focus on the analysis of small scale producer s welfare in developing countries our review shows that while most empirical papers have focused on the impacts of fair trade on prices and income our review highlights the importance of limited market access and changes in productivity likewise little is known about the impacts of fair trade on labor markets and human capital investments persistent methodological challenges make it challenging however to assess the causal impact of this certification and labelling initiative

risk aversion and co2 regulatory uncertainty in power generation investment policy and modeling implications abstract we consider a simulation of risk averse producers when making investment decisions in a competitive energy market who face uncertainty about future regulation of carbon dioxide emissions investments are made under regulatory uncertainty then the regulatory state is revealed and producers realize returns we consider anticipated taxes grandfathered permits and auctioned permits and show that some anticipated policies increase investment in the relatively dirty technology beliefs about the policy instrument that will be used to price carbon may be as important as certainty that carbon will be priced more generally a failure to consider risk aversion may bias policy analysis for the power sector

pricing derivatives on financial securities subject to credit risk this article provides a new methodology for pricing and hedging derivative securities involving credit risk two types of credit risks are considered the first is where the asset underlying the derivative security may default the second is where the writer of the derivative security may default we apply the foreign currency analogy of jarrow and turnbull 1991 to decompose the dollar payoff from a risky security into a certain payoff and a spot exchange rate arbitrage free valuation techniques are then employed this methodology can be applied to corporate debt and over the counter derivatives such as swaps and caps the purpose of this article is to provide a new theory for pricing and hedging derivative securities involving credit risk two sources of credit risk are identified and analyzed the first is where the asset underlying the derivative security may default paying off less than promised this is the case for example with imbedded options on corporate debt the second is the credit risk introduced by the writer of the derivative security who may also default examples include over the counter writers of options on eurodollar futures swaps and swaptions for pricing derivative securities involving credit risk there are currently two approaches the first views these derivatives as contingent claims not on the financial securities themselves but as compound options on the assets underlying the financial securities this is the case for example with the pricing of imbedded options on corporate debt see merton 1974 1977 black and cox 1976 ho and singer 1982 chance 1990 and kim ramaswamy and sundaresan 1993 or the pricing of vulnerable options see johnson and stulz 1987 in practice however this valuation methodology is difficult to use first the assets underlying the financial security are often not tradeable and therefore their values are not observable this makes application of the theory and estimation of the relevant parameters problematic second as in the case of corporate debt all of the other liabilities of the firm senior to the corporate debt must first and simultaneously be valued this generates significant computational difficulties as a result this approach has not

the impact of coffee certification on small scale producers livelihoods a case study from the jimma zone ethiopia what is the impact of product certification on small scale farmers livelihoods to what extent does the participation of ethiopian small scale coffee farmers in certified local cooperative structures improve their socioeconomic situation to answer these questions this article employs household data of 249 coffee farmers from six different cooperatives collected in the jimma zone of southwestern ethiopia in 2009 findings show that the certification of coffee cooperatives has in total a low impact on small scale coffee producers livelihoods mainly due to 1 low productivity 2 insignificant price premium and 3 poor access to credit and information from the cooperative differences in production and organizational capacities between the local cooperatives are mirrored in the extent of the certification benefits for the smallholders good cooperatives have reaped the benefits of certification whereas bad ones did not fare well in this regard the cooperative effect overlies the certification effect

a ten year rule to guide the allocation of eu emission allowances abstract member states in the european union eu are responsible for national allocation plans governing the initial distribution of emission allowances in the co2 emission trading system including rules governing allocations to installations that close and to new entrants the european commission has provided guidelines to discourage the use of allocation methodologies that provide incentives affecting firms compliance behavior for example by rewarding one type of compliance investment over another we find that the treatment of closures and new entrants by member states is inconsistent with the general guidelines provided by the eu we propose stronger eu guidance regarding closures and new entrants a more precise compensation criterion on which to justify free allocations and a ten year rule as a component of future eu policy that can guide a transition from current practice to an approach that places greater weight on efficiency

security pricing and deviations from the absolute priority rule in bankruptcy proceedings claims ultimately awarded to shareholders of firms in reorganization were examined for a sample of 30 filings under the 1978 bankruptcy reform act we measured the amount paid to shareholders in excess of that which they would have received under the absolute priority rule and found that this amount represents on average 7 6 of the total awarded to all claimants evidence is also reported that common share values reflect a significant proportion of value ultimately received in violation of absolute priority suggesting that deviations from the rule were expected by the equity markets the absolute priority rule hereafter apr states that a bankrupt firm s value is to be distributed to suppliers of capital such that senior creditors are fully satisfied before any distributions are made to junior creditors and junior creditors are paid in full before common shareholders bankruptcy reorganization proceedings however are leaving shareholders and junior creditors with valuable assets even when senior claimants receive only partial settlements as barrett and sullivan 1988 noted traditionally shareholders have been last in line their claims on a troubled company s assets have had the lowest priority and their impact on the course of bankruptcy code proceedings generally has been next to nil but lately the balance of power has been shifting warner 1977 provided one of the early discussions of the implications of deviations from the apr baldwin and mason 1983 pp 510 511 examined the resolution of claims in the massey ferguson reorganization and provided no support for the hypothesis that the market believes absolute priority rules will be enforced if the firm defaults on its financial obligations franks and torous 1989 analyzed a sample of bankruptcies that occurred during the period 1970 through 1984 and found that 21 of 27 sample cases exhibited departures from the apr more recently weiss 1990 examined 37 firms that filed for bankruptcy between 1980 and 1986 and reported that 27 of the cases involved apr violations

evaluating corporate bonds with complicated liability structures and bond provisions this paper presents a general and numerically accurate lattice methodology to price risky corporate bonds it can handle complex default boundaries discrete payments various asset sales assumptions and early redemption provisions for which closed form solutions are unavailable furthermore it can price a portfolio of bonds that accounts for their complex interaction whereas traditional approaches can only price each bond individually or a small portfolio of highly simplistic bonds because of the generality and accuracy of our method it is used to investigate how credit spreads are influenced by the bond provisions and the change in a firm s liability structure due to bond repayments

food standards certification and poverty among coffee farmers in uganda summary voluntary standards are gaining in importance in global markets for high value foods we analyze and compare impacts of three sustainability oriented standards fairtrade organic and utz on the livelihoods of smallholder coffee farmers in uganda using survey data and propensity score matching with multiple treatments we find that fairtrade certification increases household living standards by 30 and reduces the prevalence and depth of poverty for the other two certification schemes no significant impacts are found several factors that can explain differential impacts are discussed overly general statements about the effects of sustainability standards on smallholder livelihoods may be misleading

capitalization of the single payment scheme into land value generalized propensity score evidence from the eu this paper estimates the capitalization of the single payment scheme sps into land values the theory suggests a nonlinear and discontinuous relationship between the sps and land rents in empirical analysis we employ unique farm level panel data and apply the generalized propensity score matching approach our estimates suggest a 6 to 10 sps capitalization rate on average in the european union the nonfarming landowners gains from the sps are only 4 however there is a large variation in the capitalization rate for different sps levels and between different member states 3 to 94

evaluating corporate bonds and analyzing claim holders decisions with complex debt structure abstract although many different aspects of debt structures such as bond covenants and repayment schedules are empirically found to significantly influence values of bonds and equity many theoretical structural models still oversimplify debt structures and fail to capture phenomena found in financial markets this paper proposes a carefully designed structural model that faithfully models typical complex debt structures containing multiple bonds with various covenants for example the ability for an issuing firm to meet an obligation is modeled to rely on its ability to meet previous repayments and the default trigger is shaped according to the characteristics of its debt structure such as the amount and schedule of bond repayments thus our framework reliably provides theoretical insight and concrete quantitative measurements consistent with extant empirical research such as the shapes of yield spread curves under various firm s financial statuses and the impact of payment blockage covenants on newly issued and other outstanding bonds we also develop the forest a novel quantitative method to handle contingent changes in the debt structure due to premature bond redemptions a forest consists of several trees that capture different debt structures for instance those before or after a bond redemption this method can be used to analyze how poison put covenants in the target firm s bonds influence the bidder s costs of debt financing for a leveraged buyout or investigate how the presence of wealth transfer among the remaining claim holders due to a bond redemption influences the firm s call policy or further reconcile conflicts among previous empirical studies on call delay phenomena