fishing effort its testing specification and internal structure in fisheries economics and management abstract the concept of fishing effort is central to fisheries economics and management however effort is an aggregate index of inputs which can be consistently formed only under the condition on production technology of homothetic separability of inputs this paper develops the conditions under which effort can be consistently formed it then provides the first empirical test for effort and jointness in inputs in a fishery by estimating a multiproduct function for the new england otter trawl fleet after not rejecting input output separability and rejecting nonjointness in inputs the construction of a superlative index for effort is demonstrated through estimating a translog production function the implications of effort s internal structure for fisheries management are then considered

state dependence and heterogeneity in fishing location choice to explore the distinction between state dependence and heterogeneity in repeated decisions this paper combines a mixed logit model with a state dependence parameterization from the marketing literature to study fishing location choices of commercial sea urchin divers in california it examines implications of ignoring either effect and finds in all cases that true state dependence is an important determinant of location choice consequently spatial policies like marine reserves can lead to differences in the short and long run behavioral responses of the fishing fleet under some specifications random preference parameters are statistically significant when state dependence is excluded from the model but when it is included random preference parameters are not significant in other specifications including state dependence only dampens the variability in preference parameters these results highlight the importance of gathering and analyzing diary type data for commercial fisheries as well as for similar choice problems in recreation demand

renewable resource economists and policy what differences have we made abstract this paper surveys developments in fisheries economics and fisheries policy over the past half century early work clarified the nature of the economic issues associated with open access laying the groundwork for changes in policies after coastal nations expanded their jurisdictions in 1976 perhaps the most important point made by economists is that property rights matter and that open access conditions create economic as well as biological problems the policy process has begun to create property rights systems although many of the world s fisheries still operate under mixed systems of regulations and open access incentives

from ngos to banks does institutional transformation alter the business model of microfinance institutions microfinance which pledges to provide financial services to people without access to banking is chiefly run by non governmental organizations ngos little is known about the extent to which the transformation of these ngos into shareholder owned and most often regulated firms affects the way microfinance institutions mfis conduct their business by applying the event study methodology to 66 mfis that have transformed we quantify the effect that transformation has on the mfis business models our results suggest that portfolio yield is driven down by 3 9 percentage points due to transformation indicating that clients get more favorable interest rates at the same time mfis are able to significantly cut down their operational expenses of which 1 1 percentage points can be attributed to transformation other findings include a steep increase in commercial debt leverage and deposits a significant decrease in the fluctuation of funding costs and a sharp rise in average loan size profitability goes down in the short and medium term while return on equity is driven up in the medium to long run by exploiting within mfi data our approach goes beyond previous studies that mainly relied on between mfi data overall the results suggest that transformed mfis become an attractive environment for investors potentially encouraging a more profit seeking behavior among transformed mfis

stochastic production and heterogeneous risk preferences commercial fishers gear choices we present a model of fishers gear choice which allows for heterogeneity both in production technology and risk preferences and apply it on a panel of swedish trawlers stochastic revenue functions are estimated and used to predict the mean and standard deviation of revenue for each trip in a random parameters logit model we test if these predicted values explain gear choice a majority of fishers respond positively to increased mean and negatively to increased variability of expected landing values indicating risk aversion but also show a strong tendency to choose the same gear used on the previous trip

household debt consumption and inequality abstract this paper examines the link between household credit shocks consumption and income inequality at the national level empirically we use country specific var models to estimate the dynamic responses of aggregate consumption to household credit shocks we then show in cross country regressions that the consumption response is more sensitive to such shocks in countries with higher levels of inequality even after controlling for financial development theoretically we construct and simulate a dynamic model based on the effect of inequality on the incidence of credit constraints to illustrate potential causal mechanisms

firm behavior under quantity controls the theory of virtual quantities the theory of virtual quantities the dual to virtual prices provides a framework to analyze competitive multiproduct firm behavior under multiple quantity controls on inputs and outputs including command and control quotas and transferable property rights the framework addresses the firm s reactions to regulatory controls impacts of adding or dropping quantity controls inferring unrationed from rationed production and conversion from command and control quotas to cap and trade systems with transferable property rights and secondary market behavior the paper develops reasons for failure of quasi concavity of technology extends the elasticity of intensity s properties and integrates the virtual price and virtual quantity frameworks virtual quantities are applied to assess potential firm responses to quantity controls and a potential transferable property right in a malaysian fishery

the role of subsidies in microfinance evidence from the grameen bank the grameen bank of bangladesh has been in the vanguard of the microfinance movement showing the potential to alleviate poverty by providing credit to poor house holds part of this success has been built on subsidies in 1996 for example total subsidies evaluated at the economic opportunity cost of capital amounted to about us 26 30 million the evidence helps to explain why institutions like grameen have not just sprung up on their own as private commercial ventures and it underscores the value of openly addressing the costs and benefits of subsidization the paper also describes recent difficulties in maintaining high repayment rates q 1999 elsevier science b v all rights reserved

the basic analytics of moral hazard the basic analytics of moral hazard are developed using the simplest possible model of the insurance market even when the underlying expected utility function and the function relating the accident probability to accident prevention effort are extremely well behaved the indifference curves and feasibility set the set of insurance contracts which at least break even are not indifference curves need not be convex and feasibility sets never are priceand income consumption lines may be discontinuous and effort is not in general a monotonic or continuous function of the parameters of the insurance policies provided

capital structure and sustainability an empirical study of microfinance institutions abstract the capital structure of lending institutions has become an increasingly prominent issue in the world of finance contemporaneously microfinance institutions mfis have risen to the forefront as invaluable lending institutions in the development process since capital constraints have hindered the expansion of microfinance programs and microfinance organizations have had various degrees of sustainability the question of how best to finance these organizations is a key issue this paper explores how changes in capital structure could improve mfi efficiency and financial sustainability i find causal evidence supporting the assertion that increased use of grants by large mfis decreases operational self sufficiency

is grameen lending efficient repayment incentives and insurance in village economies many believe that a key innovation by the grameen bank is to encourage borrowers to help each other in hard times to analyse this we study a mechanism design problem where borrowers share information about each other but their limited side contracting ability prevents them from writing complete insurance contracts we derive a lending mechanism which efficiently induces mutual insurance it is necessary for borrowers to submit reports about each other to achieve efficiency such cross reporting increases the bargaining power of unsuccessful borrowers and is robust to collusion against the bank copyright 2004 wiley blackwell

household balance sheet channels of monetary policy a back of the envelope calculation for the euro area abstract this paper formulates a back of the envelope approach to study the effects of monetary policy on household consumption expenditures we analyze several transmission mechanisms operating through direct partial equilibrium channels intertemporal substitution and net interest rate exposure and indirect general equilibrium channels net nominal exposure as well as wealth collateral and labor income channels the strength of these forces varies across households depending on their marginal propensities to consume their balance sheet composition the sensitivity of their own earnings to fluctuations in aggregate labor income and the responsiveness of aggregate earnings asset prices and inflation to monetary policy shocks we quantify all these channels in the euro area by combining micro data from the hfcs and the eu lfs with structural vars estimated on aggregate time series we find that the indirect labor income channel and the housing wealth effect are strong drivers of the aggregate consumption response to monetary policy and explain the cross country heterogeneity in these responses

experiments in islamic microfinance abstract microfinance has been identified as an important tool in increasing the productivity of the poor and in aiding economic development however a large proportion of the poor are practicing muslims and are thus unable to take advantage of traditional microfinance contracts which involve the payment of interest this paper describes and experimentally tests islamic compliant microfinance products in the context of information asymmetry and costly state verification we find significantly higher compliance rates for the islamic compliant contracts profit sharing and joint venture than for the traditional contract interest based we believe that there is great promise for these types of loans in the microfinance context for both muslims and non muslims

prices versus quantities in fisheries models this paper discusses the conditions for generalizing the analysis in weitzman 1974 to fisheries it is shown that it is straightforward to generalize the analysis if the cost function is direct additively separable in stock size and catches this leads to the conclusion that the analysis holds for a schooling fishery with and without search costs but it might not hold for a search fishery a further result is that for a schooling fishery without search costs where the marginal cost function is steeper than the marginal benefit function taxes are likely to be preferred over individual transferable quotas

labor turnover wage structures and moral hazard the inefficiency of competitive markets a multiperiod general equilibrium model of the labor market is developed in which risk averse workers are faced with job related uncertainty and labor turnover is costly if a worker is unlucky and suffers a bad job match he quits and joins another firm hoping that he will like its work environment more because the quality of a job match is unobservable workers cannot insure against the risk of a bad match the firm provides implicit insurance against job dissatisfaction typically by paying workers more than their net marginal products in their early years with the firm and less subsequently since the probabilities of the insured against events the quit rates over time are affected by the amount of such insurance provided this implicit insurance is characterized by moral hazard individuals quit when in the absence of insurance they would not the equilibrium contract balances out efficiency in risk bearing with efficiency in turnover incentives we show that the equilibrium contract is not con

do interest rates matter credit demand in the dhaka slums abstract best practice in microfinance holds that interest rates should be set at profit making levels based on the belief that even poor customers favor access to finance over low fees despite this core belief little direct evidence exists on the price elasticity of credit demand in poor communities we examine increases in the interest rate on microfinance loans in the slums of dhaka bangladesh using unanticipated between branch variation in prices we estimate interest elasticities from 0 73 to 1 04 with our preferred estimate being at the upper end of this range interest income earned from most borrowers fell but interest income earned from the largest increased generating overall profitability at the branch level

moral hazard and peer monitoring in a laboratory microfinance experiment abstract this paper reports the results from a laboratory microfinance experiment of group lending in the presence of moral hazard and costly peer monitoring we compare peer monitoring treatments in which credit is provided to members of the group to individual lending treatments with lender monitoring we find that if the cost of peer monitoring is lower than the cost of lender monitoring peer monitoring results in higher loan frequencies higher monitoring and higher repayment rates compared to lender monitoring in the absence of monitoring cost differences however lending monitoring and repayment behavior is mostly similar across group and individual lending schemes within group lending contrary to theoretical predictions simultaneous and sequential lending rules provide equivalent empirical performance

subprime consumer credit demand evidence from a lender s pricing experiment using a unique panel data set from a u k credit card company we analyze the interest rate sensitivity of subprime credit card borrowers in addition to all individual transactions and loan terms we have access to details of a randomized interest rate experiment conducted by the lender on existing inframarginal loans for the whole sample we estimate a statistically significant 3 4 reduction in monthly credit demand in response to a five percentage point increase in interest rates this aggregate response is small but it masks very interesting heterogeneity in the sample we find that only low risk borrowers who fully utilize their credit cards lower their credit demand significantly when faced with an increase in interest rates we also document that a five percentage point increase in interest rates generates significant additional revenue for the lender without inducing delinquency over a short horizon 2013 the author

why do poor people co hold debt and liquid savings i examine the use of flexible savings and loan accounts offered by safesave a microfinance institution serving poor slum dwellers in dhaka bangladesh i find that 59 per cent of the clients co ho

limited entry licensing insights from a duration model limited entry is used to manage many fisheries effectiveness depends on a program s ability to control aggregate fishing power which fleet size and composition both affect this article analyzes fleet composition and attrition in a limited entry fishery the california red sea urchin fishery it explores the dynamics of heterogeneity in catch and revenue and applies duration analysis to study individual fisherman attrition using both individual level and time varying covariates the results show that the fleet is becoming more homogenous but also more potent and spatially mobile regulations such as size limits and season restrictions tend to increase attrition

a generalized harvest function for fishing allocating effort among common property cod stocks a generalized harvest function abstract simple harvest functions such as the schaefer or the biomass and effort cobb douglas function have been the foundation of most dynamic fishery models the intent of this article is to question these simple harvest functions by theoretically specifying and estimating a general harvest technology the harvest from a particular stock is assumed to be a function of 1 the amount of fishing effort applied 2 the stock s biomass 3 the size of the recruit class and 4 an index of other characteristics of the stock data are available for a number of common property cod stocks in the north atlantic the harvesting technology is estimated by developing a general stochastic variable cost function to explain how a country allocates its fishing effort among these common property stocks both the schaefer harvest function and the biomass and effort cobb douglas function are rejected on empirical grounds

loan contract structure and adverse selection survey evidence from uganda abstract while adverse selection is an important theoretical explanation for credit rationing it is difficult to quantify empirically many studies measure the elasticity of credit demand of existing or previous borrowers as opposed to the population at large other studies use cross sectional approaches that may confound borrower risk with other factors we circumvent both issues by surveying a representative sample of microenterprises in urban uganda and by measuring their responses to multiple hypothetical contract offers varying in interest rates and collateral requirements the two seminal theories on selection provide contradicting predictions following a change in the contractual terms under adverse selection a lower interest rate or a lower collateral obligation should increase take up among less risky borrowers by contrast advantageous selection implies that take up should increase among the riskier borrowers we test these two predictions by examining if firm owners respond to changes in the interest rate or the collateral requirement and whether higher take up varies by firms risk type we find support for the presence of adverse selection as contracts with lower interest rates or lower collateral obligations increase hypothetical demand especially for less risky firms our results imply that changes to the standard loan product available to microenterprises may have substantial effects on credit demand

free and slave labor in the antebellum south perfect substitutes or different inputs the substitutability between free and slave labor is examined and the permissibility of aggregating the two in to a single labor variab le is investigated using a translog production function slaves on large cotton farms worked in gangs free labor was not observed to do so despite this previous research has aggregated free and slave labor and employed functional forms imposing strong restrictions on substitution estimation of the translog function shows that simple additive aggregation is not acceptable on large farms slaves and free labor were complements while on small nongang farms they were substitutes copyright 1988 by mit press

moral hazard and optimal commodity taxation abstract this paper demonstrates that in an economy with moral hazard and more than one commodity competitive equilibrium is not constrained efficient to correct the market failure differential commodity taxation is necessary a general optimal tax formula is derived and special cases of is discussed

an empirical analysis of production distortions in the mid atlantic surf clam and ocean quahog fishery this paper presents empirical evidence of production distortions under controlled access management in the mid atlantic surf clam and ocean quahog fishery results indicate that vessels harvested multiple clam species even though the harvest technology exhibits diseconomies of scope vessels also operated in a region of the production surface where the marginal product of vessel capital services was negative these distortions are explained by perverse regulations which restricted vessel capital replacement and severely limited fishing times

microfinance spillovers a model of competition in informal credit markets with an application to indian villages despite widespread interest in the development of microfinance spillover effects on the non using population and redistributive issues remain largely unexplored i study a competition game between microfinance institutions mfis offering joint liability loans and moneylenders offering individual loans in presence of adverse selection i show that one unintended consequence of the entry of a microfinance sector in local credit markets can be to trigger an increase in the equilibrium informal interest rate because mfis tend to attract a disproportionately safe share of the borrower pool away from incumbent moneylenders the existence of such composition externality depends crucially on the size of the microfinance sector and the risk composition of the borrower pool the model predicts a non linearly increasing relationship between informal interest rates and mfis capacity in relatively safe credit markets and no relationship in risky villages i show evidence supporting these predictions using a first hand panel database that records all credit transactions over 8 years for a sample of about 1000 households living in indian villages with extensive space and time variation in the size of their microfinance sector

a conceptional analysis of dynamics and production in bioeconomic models harvesting functions and stock dynamic equations in age structured bioeconomic models are generalized in order to incorporate density dependence using this generalization anything from completely uniformly distributed fish to extreme schooling can be analyzed the classical beverton holt model comes out as a special case of the generalized model the generalization can be applied both for simulation as well as for optimization purposes given appropriate software conceptual analysis indicates that pulse fishing seems to become less and less economically profitable as we move from uniformly distributed fish to schooling species this has important implications for how fish stocks ought to be managed copyright 2010 oxford university press

output supply and input demand system of commercial and backyard poultry producers in indonesia indonesia s domestic broiler production has grown rapidly in part because of a ban on imports of poultry parts and strict inspection and meat certification requirements whether indonesia will continue to protect the domestic broiler sector and import feed grains and other inputs or whether it will directly import meat products is a relevant question to many stakeholders this study uses a normalized quadratic function to estimate the output supply of commercial and backyard broiler producers in indonesia and the input demand for three major inputs day old chicks feed and labor data come from three datasets a 1996 household survey and 1996 and 2000 surveys of commercial producers for the most recent dataset the own price elasticity in both the output supply and feed input demand equations were found to be significant the signs of the elasticities were theoretically consistent with a positive supply and negative demand elasticity the magnitudes of the elasticities were smaller than expected the supply elasticity was 0 285 the inelastic supply explains the high border protection imposed by indonesia which in turn implies that any income driven expansion in the quantity of broiler product demanded would be quickly constrained by rising prices consequently supply from imports would become attractive and would dampen any incentive for growth in the domestic sector this result cast doubt on the long term sustainability of indonesia s import substitution policy regime

rent seeking and incentives for compliance in the commons this article studies how rent seeking behavior induces an informal leasing market for fishing licenses that leads harvesters in a common pool to circumvent rules set by the manager to conserve the resource as well as how the vulnerability of the resource to such behavior depends on the management approach adopted license leasing reduces fleet heterogeneity in terms of catch per unit effort as demonstrated by the outward shift in the stochastic production frontier while aggregate harvest is invariant to alternative profiles of fleet heterogeneity in quota managed fisheries the productivity of the restricted variable total effort increases with the number of leasing contracts in input controlled fisheries if unanticipated by the regulator the additional pressure on the resource may lead to overfishing and compromise the long term viability of the industry

consumer credit evidence from italian micro data in this paper we analyse unique data on credit applications received by the leading provider of consumer credit in italy findomestic the data set covers a five year period 1995 1999 during which the consumer credit market rapidly expanded in italy and a new law the usury law came into force that set a limit on interest rates charged to consumers we compute behavioural changes by controlling for changes in the observable characteristics of the findomestic clientele and argue that under suitable identifying assumptions these changes can be given a structural interpretation if the usury shock is assumed to have affected credit supply but not credit demand that is if the usury law had a differential impact on the supply of various types of credit but a uniform impact on demand then we can identify and estimate a demand equation our key finding is that demand is interest rate elastic particularly in the more affluent north 2005 by the european economic association

social connections and group banking lending to the poor is expensive due to high screening monitoring and enforcement costs group lending advocates believe lenders overcome this by harnessing social connections using data from finca peru i exploit a quasi random group formation process to find evidence of peers successfully monitoring and enforcing joint liability loans individuals with stronger social connections to their fellow group members i e either living closer or being of a similar culture have higher repayment and higher savings furthermore i observe direct evidence that relationships deteriorate after default and that through successful monitoring individuals know who to punish and who not to punish after default

credit elasticities in less developed economies implications for microfinance policymakers often prescribe that microfinance institutions increase interest rates to eliminate their reliance on subsidies this strategy makes sense if the poor are rate insensitive then microlenders increase profitability or achieve sustainability without reducing the poor s access to credit we test the assumption of price inelastic demand using randomized trials conducted by a consumer lender in south africa the demand curves are downward sloping and steeper for price increases relative to the lender s standard rates we also find that loan size is far more responsive to changes in loan maturity than to changes in interest rates which is consistent with binding liquidity constraints

optimal partial group liability in microfinance lending abstract this paper develops a model of group borrowing that incorporates partial group liability where borrowers are penalized if their group members default but are not held responsible for the entirety of the failed loan the model illustrates a trade off of group liability lending while higher levels of group liability increase within group risk sharing if liability is too high borrowers strategically default the model predicts the existence of an optimal partial liability that maximizes transfers between group members while avoiding strategic default consistent with this prediction loan officers from a large microfinance institution in southern mexico who rarely allow one group member to repay while the other defaults achieve substantially lower default rates than loan officers for whom the practice is commonplace or for those for whom it has never occurred structural estimation using repayment data suggests that while a partial liability below full liability may reduce default rates the incidence of strategic default is rare

renewable resource policy when distributional impacts matter the standard assumption in bioeconomic resource models is that optimal policies maximize the present value of economic surplus to society this assumption implies that regulatory agencies should not be concerned with the distributional consequences of management strategies both contemporary welfare theoretic and rent seeking approaches suggests distributional issues are important in designing resource management policies this paper explores resource management when the managing agency has preferences defined over the economic welfare of various groups with a direct economic interest in the use of resources policy schemes consistent with this approach are derived and compared with standard results

delegated monitors large and small germany s banking system 1800 1914 banks play a greater role in the german financial system than in those of the united states or britain germany s large universal banks are admired by those who advocate bank deregulation in the united states others admire the universal banks for their supposed role in corporate governance and industrial finance many discussions distort the german banking system by overstressing one of several types of banks and ignore the competition and cooperation between the famous universal banks and other banking groups tracing the historical development of the german banking system from the early nineteenth century places the large universal banks in context

long run price elasticities of demand for credit evidence from a countrywide field experiment in mexico we use randomized interest rates offered across eighty geographically distinct regions for twenty nine months by mexico s largest microlender to sketch the adjustment from a price change to a new equilibrium demand is elastic and more so over the longer run e g the dollars borrowed elasticity increases from 1 1 in year one to 2 9 in year three credit bureau data do not show evidence of crowd out although this and other null results are imprecisely estimated the lender s profits increase albeit noisily starting in year two but competitors do not respond by reducing rates these findings together with other results suggest that informational frictions are important and that cutting rates furthered compartamos banco s double bottom line of improving social welfare subject to a profitability constraint

stock size harvesting costs and the potential for extinction the case of sealing starting in the 1960s considerable opposition to the canadian and norwegian harp seal hunt off newfoundland developed it was alleged that the seal hunt was unethical and that the seal population had been seriously depleted the purpose of this paper is to analyze the production function for the seal hunt based on data for the norwegian seal hunt particular attention is paid to the question whether free entry to the fishery will cause overexploitation this depends critically on the characteristics of the production function in particular the extent to which harvesting costs depend on stock size

should access to credit be a right discussion on financial ethics increasingly includes the problem of exclusion of the poorer segments of society from the financial system and access to credit this paper explores the ethical dimensions surrounding the concept of a human right to credit if access to credit is directly instrumental to economic development poverty reduction and the improved welfare of all citizens then one can proclaim as nobel prize laureate m yunus has done that it is a moral necessity to establish credit as a right arguments both supporting and opposing the concept of a right to credit are presented while there may be general agreement that access to financial services may provide a pathway out of poverty granting a universal right could induce perverse effects such as overindebtedness bearing in mind the ultimate goal of proponents of this right as well as the potential harmful consequences this paper offers a new perspective on the question of access to credit based on a goal right system

returns to capital in microenterprises evidence from a field experiment small and informal firms account for a large share of employment in developing countries the rapid expansion of microfinance services is based on the belief that these firms have productive investment opportunities and can enjoy high returns to capital if given the opportunity however measuring the return to capital is complicated by unobserved factors such as entrepreneurial ability and demand shocks which are likely to be correlated with capital stock the authors use a randomized experiment to overcome this problem and to measure the return to capital for the average microenterprise in their sample regardless of whether they apply for credit they accomplish this by providing cash and equipment grants to small firms in sri lanka and measuring the increase in profits arising from this exogenous positive shock to capital stock after controlling for possible spillover effects the authors find the average real return to capital to be 5 7 percent a month substantially higher than the market interest rate they then examine the heterogeneity of treatment effects to explore whether missing credit markets or missing insurance markets are the most likely cause of the high returns returns are found to vary with entrepreneurial ability and with measures of other sources of cash within the household but not to vary with risk aversion or uncertainty

spatial search and fishing location choice methodological challenges of empirical modeling recent work in ecology emphasized the spatial patchiness of marine resources fish and shellfish populations often occur in clumps or discrete patches of habitat with different population levels and dynamics in each patch patches are linked through a set of complex biological and oceanographic factors this new view has given rise to spatial marine management proposals including permanent marine reserves and rotating spatial closures reserve proposals are particularly popular among ecologists because closed areas can presumably augment the biomass in areas that were overharvested due to stochas

do liquidity constraints and interest rates matter for consumer behavior evidence from credit card data this paper utilizes a unique new dataset of credit card accounts to analyze how people respond to changes in credit supply the data consist of a panel of thousands of individual credit card accounts from several different card issuers with associated credit bureau data we estimate both marginal propensities to consume mpcs out of liquidity and interest rate elasticities we also evaluate the ability of different models of consumption to rationalize our results distinguishing the permanent income hypothesis pih liquidity constraints precautionary saving and behavioral models we find that increases in credit limits generate an immediate and significant rise in debt counter to the pih the average mpc out of liquidity ddebt dlimit ranges between 10 14 the mpc is much larger for people starting near their limits consistent with binding liquidity constraints however the mpc is significant even for people starting well below their limit we show this response is consistent with buffer stock models of precautionary saving nonetheless there are other results that conventional models cannot easily explain e g why so many people are borrowing on their credit cards and simultaneously holding low yielding assets unlike most other studies we also find strong effects from changes in account specific interest rates the long run elasticity of debt to the interest rate is approximately 1 3 less than half of this elasticity represents balance shifting across cards with most reflecting net changes in total borrowing the elasticity is larger for decreases in interest rates than for increases which can explain the widespread use of temporary promotional rates the elasticity is smaller for people starting near their credit limits again consistent with liquidity constraints

sea bass angling in ireland a structural equation model of catch and effort abstract the relationship between angling effort and catch is well recognised in particular that effort influences catch rates but increased catch which can be considered an attribute of fishery quality may influence effort in terms of number of fishing trips this suggests bi directional feedback between catch and effort in many travel cost applications little attention has been given to this endogeneity problem in this paper we expand the application of structural equation models to address this issue by jointly estimating demand effort and catch functions using a cross section dataset of sea bass anglers we propose two separate joint models first we include expected catch as an explanatory variable in the demand equation in the second we reverse the causality and use the expected number of fishing days as a covariate in the catch function the two approaches produce similar model estimates and perform better at predicting anglers catch and effort than standard models the findings confirm that sea bass angling is highly valued with a consumer surplus of about 282 318 per angler per day though this is likely to be biased upwards furthermore higher catches result in more days fished on average in a 2 1 ratio whereas on average an additional fishing day results in 3 4 additional bass caught

here today gone tomorrow can dynamic incentives make microfinance more flexible this paper presents a model of microfinance lending to individuals that uses dynamic incentives in the form of access to additional loans to discourage borrowers from strategic default or the unwillingness to repay a loan once a positive outcome is realized we propose an improvement on contracts currently used by microfinance institutions mfis by endogenizing the default penalty while constraining the mfi to maintain sustainable lending operations furthermore accounting for the risks that the poor face by including a negative economic shock we show that under certain circumstances the punishment for default need not be a lifetime without loans

policies and impact an analysis of village level microfinance institutions this paper uses variation in policies and institutional characteristics to evaluate the impacts of village level microfinance institutions in rural thailand to identify impacts we use policies related to the successful unsuccessful provision of services as exogenous variation in effective financial intermediation we find that institutions particularly those with good policies can promote asset growth consumption smoothing and occupational mobility and can decrease moneylender reliance specifically cash lending institutions production credit groups and especially women s groups are successful in providing intermediation and its benefits to members while buffalo banks and rice banks are not the policies identified as important to intermediation and benefits the provision of savings services especially pledged savings accounts emergency services and training and advice surprisingly much publicized policies such as joint liability default consequences or repayment frequency had no measured impacts jel 012 016

two sides of the same rupee comparing demand for microcredit and microsaving in a framed field experiment in rural pakistan standard models often predict that people should either demand to save or demand to borrow but not both we hypothesise instead that saving and borrowing among microfinance clients are substitutes satisfying the same underlying demand for a regular schedule of deposits and a lump sum withdrawal we test this using a framed field experiment among women participating in group lending arrangements in rural pakistan the experiment inspired by the rotating structure of a rosca involves randomly offering credit products and savings products to the same subject pool we find high demand both for credit products and for savings products with the same individuals often accepting both a credit product and a savings product over the three experiment waves this behavior can be rationalised by a model in which individuals prefer lump sum payments for example to finance a lumpy investment and in which individuals struggle to hold savings over time we complement our experimental estimates with a structural analysis in which different types of participants face different kinds of constraints our structural framework rationalises the behaviour of 75 of participants of these rationalised participants we estimate that two thirds have high demand for lump sum payments coupled with savings difficulties these results imply that the distinction between microlending and microsaving may be largely illusory participants value a mechanism for regular deposits and lump sum payments whether that is structured in the credit or the debt domain

unraveling the multiple margins of rent generation from individual transferable quotas individual transferable quotas itqs induce changes along both the extensive margin via consolidation of quota among fewer vessels and the intensive margin as harvesters adjust their behavior to itq incentives we use itq introduction in the bering sea crab fishery to decompose the sources of rent generation across both margins we embed an empirically calibrated structural model of the harvesting process into a sector level model allowing us to experimentally unravel the itq treatment we show that the magnitude and source of rent generation under itqs critically depends on the manner and degree of rent dissipation before itqs are implemented

the role of the state in financial markets this paper reexamines the role of the state in financial markets and identifies seven major market failures that provide a potential rationale for government intervention in practice government interventions in capital markets even in industrial countries have been pervasive the paper provides a taxonomy of those interventions with respect to both the objectives they serve and the instruments they employ there is a role for the government in financial markets but the success of government interventions has been mixed it is important that interventions be well designed the paper sets out principles for government regulatory interventions and applies them to prudential regulation it then examines three other areas of intervention directed credit finanical repression and competition policy and identifies circumstances in which some amount of financial repression may actually be beneficial

potential economic benefits from gear restrictions and license limitation in fisheries regulation the economic analysis of various fisheries management tools has been the subject of an enormous economic literature a large portion of which has been produced since the passage of extended fisheries jurisdiction laws in the majority of the countries of the world crutchfield 1961 anderson 1977 pearse 1979 rettig and ginter 1980 clark 1980 clark 1981 anderson 1981 sturgess and meany 1982 beddington and rettig 1984 the general conclusion of this literature is that traditional management techniques such as closed seasons closed areas gear restrictions and total quotas are economically inefficient in that directly or indirectly potential gains are dissipated through increases in costs

the effect of house prices on household borrowing a new approach we investigate the effect of house prices on household borrowing using administrative mortgage data from the united kingdom and a new empirical approach the data contain household level information on house prices and borrowing in a panel of homeowners who refinance at regular and quasi exogenous intervals the data and setting allow us to develop an empirical approach that exploits house price variation coming from the idiosyncratic and exogenous timing of refinance events around the great recession we present two main results first there is a clear and robust effect of house prices on borrowing second the effect of house prices on borrowing can be explained largely by collateral effects we study the collateral channel through a multivariate and nonparametric heterogeneity analysis of proxies for collateral and wealth effects

can social cohesion be harnessed to repair market failures evidence from group lending in guatemala the success of group lending in developing countries has been attributed to the ability of the institution to mitigate asymmetric information problems in credit markets previous research has offered a number of explanations for this phenomenon social ties between borrowing group members internal group pressure to repay loans and peer monitoring this research presents empirical tests on borrowing group data from guatemala which indicate that peer monitoring significantly effects borrowing group performance through stimulating intra group insurance group pressure is found to have a small effect in deterring moral hazard while the effect of social ties among members is statistically insignificant

peer monitoring and credit markets a major problem for institutional lenders is ensuring that borrowers exercise prudence in the use of the funds so that the likelihood of repayment is enhanced one partial solution is peer monitoring having neighbors who are in a good position to monitor the borrower be required to pay a penalty if the borrower goes bankrupt peer monitoring is largely responsible for the successful financial performance of the grameen bank of bangladesh and of similar group lending programs elsewhere but peer monitoring has a cost it transfers risk from the bank which is in a better position to bear risk to the cosigner in a simple model of peer monitoring in a competitive credit market this article demonstrates that the transfer of risk leads to an improvement in borrowers welfare

dynamic microlending under adverse selection can it rival group lending we derive an optimal lending contract in a two period adverse selection model with limited commitment on the borrower side the contract involves penalty interest rates after default and favorable rates after success under some conditions it also charges first time borrowers higher rates than repeat borrowers as in relationship lending because the lender is constrained to keep borrowing attractive while using revealed information to price for risk we compare the efficiency of a group lending contract of the kind popularized by the microcredit movement to the dynamic individual contract both types of contracts reveal the same information but the contracts face different constraints on using the information to improve risk pricing as a result either type of contract can lead to greater efficiency depending on specifics of the environment opening the possibility that dynamic lending has played a role comparable to that of group lending in the success of microcredit we also characterize the optimal dynamic group contract when both lending techniques are feasible and find that it combines both approaches but with varying emphases a recurrent theme is that in more marginal environments dynamic lending performs relatively better than and is prioritized over group lending we also discuss a number of extensions including spatially and serially correlated risk and the effect of competition

long run profit functions for multiproduct firms a long run specification of the multiproduct profit function is developed from the restricted profit function the multiproduct restricted profit function and the envelope condition are used to estimate the optimal long run levels of the quasi fixed factor formulas for long run marshallian elasticities of substitution and transformation economies of scope product specific and overall economies of scale and economic measures of capacity utilization are developed for the translog functional form the methodology is illustrated by a case study of the new england otter trawl industry

testing for input substitution in a regulated fishery input restrictions are commonly used to prevent rent dissipation in fisheries this paper examines whether these schemes are successful by calculating the degree of input substitution between restricted and unrestricted inputs conventional elasticities of substitution cannot be used when the firm faces controls on the use of some inputs in this case the appropriate measure of substitution the elasticity of intensity must be used data from the british columbia salmon fishery provide evidence of input substitution possibilities for two vessel types these results call into question the usefulness of input control schemes

transferable quotas enforcement costs and typical firms an empirical application to the norwegian trawler fleet an alternative to traditional regulations of fisheries to avoid rent dissipation is the use of individual transferable quotas itqs where prices in the quota market provide the necessary information to owners of harvest rights to contract with each other however even under such a decentralized regime information on the underlying technology of the fishing vessels is also necessary first since most fisheries consist of many interrelated production processes in order to avoid rent dissipation by discarding wrong output mix etc the structure of production in the multispecies fishery must be known to design a proper quota system second an itq system may create incentives for misreporting by understating the actual catch this may especially be the case where the expected degree of self enforcement is low the paper proposes a way to reduce the information requirements under regulation with asymmetric information by constructing a typical firm and comparing performance for the other vessels to this firm based on the typical firm and if the industry is relatively homogenous the performance and hence catch of any other firm in the industry can be predicted within a certain range further the paper applies this idea to the norwegian trawler fleet to assess the production structure in terms of jointness input output separability and the supply and demand elasticities for the fishing firms this information characterizes the fishery and thus how the quota system may be designed and how to construct a yardstick in order to reduce the enforcement cost under a decentralized regulation of itqs

estimating the elasticity of substitution between restricted and unrestricted inputs in a regulated fishery a probit approach abstract catch effort vessel and skipper characteristic data for a sample of boats involved in the tasmanian rock lobster fishery in the 1983 1984 season are used to estimate a fishing effort production function nested in a cobb douglas fishery production function the initial effort function is translog but tests suggest that the ces form cannot be rejected the vessel s choice of fishing ground is modeled by a probit equation the output from which is included in the ols estimation of the production function the elasticity of substitution between the inputs which are restricted by regulation and the other inputs is of particular interest as it determines whether input restriction is an efficient form of regulation for the fishery the results suggest a value significantly less than unity

multi output nonfrontier primal measures of capacity and capacity utilization this article implements an econometric approach for generating primal capacity output and utilization measures for fisheries in situations where regulatory environmental and resource conditions affect catch levels but are not independently identified in the data frontier based capacity models may interpret such impacts as production inefficiency however if such inefficiencies are unlikely to be eliminated the implied potential output increases may be unrealistic we develop a multi output multi input stochastic transformation function framework that permits various assumptions about how output composition may change when operating at full capacity we apply our model to catcher processor vessels in the alaskan pollock fishery

public regulation and the structure of production in multiproduct industries an application to the new england otter trawl industry this article considers the problem of managing multispecies fishing industries as one of regulating the production of individual multiproduct firms the multispecies new england otter trawl industry is examined within this framework empirical results derived from estimating a multiproduct profitfunction indicate that management consistent with the structures ofmultiproduct production and costs would directly regulate inputs little support is provided for applying the traditional bioeconomic model to the fishery studied

an analysis of the efficient production frontier in the fishery implications for enhanced fisheries management the transformation relationship between factor inputs and outputs the efficient production frontier epf contains important information for fisheries managers a directional technology distance function model of the harvesting technology is used to measure changes in the epf over time frontier shifts are summarized with input and output based frontier indicators that are interpreted as measures of bioeconomic productivity change the model is applied to the mid atlantic surf clam and ocean quahog fishery

fishing effort validation and substitution possibilities among components the case study of the viii division european anchovy fishery command and control regulation programmes particularly input constraints typically fail to achieve stated objectives because fishermen may substitute unregulated for regulated inputs it is thus essential to have an understanding of the internal structure of production technology a primal formulation is used to estimate a translog production function at the vessels level that includes fishing effort and fisherman s skill the flexibility of the selected functional permits the analysis of the substitution possibilities among inputs by estimating the elasticity of substitution with no prior constraints particular attention is paid to the empirical validation of fishing effort as an aggregate input which implies either the acceptance of the joint hypothesis that inputs making up effort are weakly separable from the inputs out of the subgroup or considering that effort is an intermediate input produced by a non separable two stage technology cross sectional data from the spanish purse seine fleet op

the life cycle of a microfinance institution the irish loan funds abstract ireland s loan funds were a long lived self sustaining large scale microfinance organization that made millions of loans without collateral to the poor during the first 100 years of their life cycle a period of growth ending in the 1840s they adapted constantly and obtained improvements to their legal structure because they were complementary to the banking system and seen as effective in relieving poverty in their 2nd century they became ossified in part because of competition with commercial banks the loan funds provide an example of sustainable microfinance under harsh economic conditions and illustrate how organizations change incrementally and when successful alter their institutional framework

resource rent in individual quota fisheries traditional fisheries management schemes generate incentives for vessels to maximize catch resulting in rent dissipation and overcapacity individual vessel quota management schemes change the incentives to maximize profit and have the potential to generate resource rent and reduce capacity an interesting question is whether it is the changed incentives due to individual quota or the capacity reduction due to transferability of individual quota that is most important in generating rent in this study a cost function approach is used to model and measure rent generated and potential rent in a fishery managed with individual vessel quotas

cost structure and capacity in the norwegian pelagic fisheries the parameters of the short run cost function are estimated for three vessel types taking part in the norwegian pelagic fisheries purse seine vessels trawlers and coastal vessels the generalized translog functional form is used estimates of returns to scale are calculated and the results indicate that there are substantial economies of scale in all vessel classes it is further investigated whether excess capacity varies with vessel size and age the analysis suggests increased quotas per vessel to avoid rent dissipation with the total allowable catch given the number of participating vessels must be reduced

which microfinance institutions are becoming more cost effective with time evidence from a mixture model italian speakers tend to stress the second component of german morphologically complex words such as compounds and prefix verbs even if the first component is lexically stressed to improve their prosodic phrasing an automatic pronunciation teaching method was developed based on auditory feedback of prosodically corrected utterances in the learners own voices basically the method copies contours of f0 local speech rate and intensity from reference utterances of a german native speaker to the learners speech signals it also adds emphasis to the stress position in order to help the learners better recognise the correct pronunciation and identify their errors a perception test with german native speakers revealed that manipulated utterances significantly better reflect lexical stress than the corresponding original utterances thus two groups of italian learners of german were provided with different feedback during a training session one group with manipulated utterances in their individual voices and the other with correctly pronounced original utterances in the teacher s voice afterwards both groups produced the same sentences again and german native speakers judged the resulting utterances resynthesised stimuli especially with emphasised stress were found to be a more effective feedback than natural stimuli to learn the correct stress position since resynthesis was obtained without previous segmentation of the learners speech signals this technology could be effectively included in computer assisted language learning software

production in a schooling fishery the case of the north sea herring fishery the purpose of this paper is to undertake an empirical analysis of the harvest production function for the north sea herring fishery the approach of the paper is to specify a general production function where output harvest is a function of variable inputs and fixed factors in particular output elasticities and returns to scale will be analyzed moreover the effect of fisheries regulations on harvesting will be investigated the empirical work is based on cross sectional data for 1968 1971 and 1975 for empirical estimation different functional forms as well as statistical procedures are employed the empirical results indicate that there is a rising marginal product to the variable input in the fishery this somewhat surprising result which is not commonly seen in the literature and indicates that the boats operate in stage one is attributed to interactions between pre postand main season fisheries fishery regulations that were in force including total quotas and closed seasons are found to be either ineffective or causing boats to operate inefficiently in section i the fishery and the data are described while the model is specified in section ii empirical results from estimating the production function are presented in section iii while the work is briefly summarized in section iv

microcredit social capital and common pool resources abstract the paper presents a conceptual scheme for understanding the impact of microcredit small loans to poor borrowers on common pool resources impacts on common pool resources are posited to occur through changes in household production and consumption the focus on women and the social capital created from group training decision making and risk bearing with the group lending techniques characteristic of many microcredit programs enhanced human and social capital can improve environmental outcomes a nonrandom survey of microfinance organizations suggests increased environmental awareness and potential cpr stewardship through microcredit but empirical research is needed to demonstrate actual impacts

the lay system in commercial fisheries origin and implications abstract in most commercial fisheries the crew is remunerated via some form of the lay system under the lay system the crew is paid with a share of revenues or a share of revenues less costs naturally the presence and the functioning of the lay system are well known and accepted as one of fishery s important institutions compared with share contracts in agriculture however the lay in fisheries has garnered relatively little research this article has two goals first we provide an explanation for the existence of the lay system as an incentive mechanism to alleviate a potential team agency problem this explanation of the lay system explains anomalies such as the presence of wages in some fisheries that are odds with the theory of pure risk sharing second we show the implications of the lay system for econometric modeling of fisheries and for understanding firm behavior in general we conclude that models that fail to account explicitly for the incentive properties of shares are likely to provide poor representations of fishing firm behavior the thrust of the paper is that the formation and working of the lay system are a fundamental force in fisheries influencing firm behavior and research results in a way that has been largely ignored

discrete modelling of supply response under uncertainty the case of the fishery abstract in the absence of complete control in a regulated industry effective management requires prediction of firms behavioral responses to public policy this paper develops a discrete choice model of supply response under uncertainty and applies it to fishery choice problems of new england fishing firms while fishermen demonstrate a bias towards remaining within the same fishery sufficient incentives in terms of changes in expected returns and risk are shown to elicit response due to extreme uncertainty concerning population dynamics of fish stocks a satisficing approach to management facilitated by this type of modelling may be more appropriate than bioeconomic optimization

technical efficiency effects of input controls evidence from australia s banana prawn fishery this paper provides the first ex post estimates of the effects of input controls on technical efficiency in a fishery using individual vessel data from the northern prawn fishery of australia for the years 1990 1996 and 1994 2000 stochastic production frontiers are estimated to analyse the efficiency impacts of input controls on engine and vessel size the results indicate that technical efficiency is increasing in a measure of vessel size and engine capacity that was controlled by the regulator from 1985 to 2001 and decreasing in an unregulated input gear headrope length the study shows that fishers have substituted from regulated to unregulated inputs over the period 1990 2000 and technical efficiency has declined coincident with increasing restrictions on vessel size and engine capacity the decline in technical efficiency indicates that the goal of the regulator to increase economic efficiency has not been realized

explaining non compliance in the norwegian coastal cod fishery an application of the multinomial logit establishing motive is central to the analysis of criminal behaviour this article analyses the range of motives for noncompliant behaviour among coastal cod fishermen a multinomial logit model is employed to analyse the reasons that underlie various motives the four motives compared in this study are economic technological and social and motives caused by bureaucracy and legitimacy problems the economic motive is found to be most important for coastal fishermen however the cross sectional data indicate that motives vary with fishing gear vessel length and fishermen s age the results indicate that identifying motives for noncompliant behaviour is not straightforward but is important for reducing the extent of infringements of the regulations fishermen who use gill net seine and long line for example are more often motivated to noncompliance by technical problems and bureaucracy than hand jig fishers the study suggests that in order to prevent noncompliance behaviour the authorities manageme

a matter of relational style loan officer consistency and exchange continuity in microfinance social scientists have long considered what mechanisms underlie repeated exchange three mechanisms have garnered the majority of this attention formal contracts relational contracts and relationally embedded social ties although each mechanism has its virtues all three exhibit a common limitation an inability to fully explain the continuation and stability of intertemporal exchange between individuals and organizations in the face of change drawing on extensive quantitative data on approximately 450 000 microfinance loans made by a microfinance institution in mexico from 2004 to 2008 that include random assignment of loan officers this research proposes the concept of relational styles to help explain how repeated exchange is possible in the face of personnel change we define relational styles as systematically reoccurring patterns of interaction employed by social actors within and across exchange relationships in this paper between microfinance clients and loan officers we show that relati

symposium on organizations and economics m t r ost production in modern economies occurs within organizations and this production is regulated only to a limited extent by prices the size of some of the largest organizations like general motors or ibm or att if managers didn t they would be replaced and firms that didn t maximize value wouldn t survive accordingly what went on inside the black box was mere detail the behavior of the firm could be described completely without knowledge of those details

stock market returns and consumption this paper employs swedish data on households stock holdings to investigate how consumption responds to changes in stock market returns we instrument the actual capital gains and dividend payments with past portfolio weights unrealized capital gains lead to a marginal propensity to consume mpc of 23 percent for the bottom 50 of the wealth distribution and about 3 percent for the top 30 of the wealth distribution households consumption is significantly more responsive to dividend payouts across all parts of the wealth distribution our findings are consistent with households treating capital gains and dividends as separate sources of income