an economic theory of self control the concept of self control is incorporated in a theory of individual intertemporal choice by modeling the individual as an organization the individual at a point in time is assumed to be both a farsighted planner and a myopic doer the resulting conflict is seen to be fundamentally similar to the agency conflict between the owners and managers of a firm both individuals and firms use the same techniques to mitigate the problems which the conflicts create this paper stresses the implications of this agency model and discusses as applications the effect of pensions on saving saving and the timing of income flows and individual discount rates

identifying roles of international institutions in clean energy technology innovation and diffusion in the developing countries matching barriers with roles of the institutions abstract the development of clean energy technologies is a central issue in climate change negotiation the signatory countries to the united nations convention on climate change agreed to organize the technology executive committee and the climate technology centre and network the objectives of this paper are twofold the first objective is to show a broad landscape of barriers in technology development the paper summarizes the results of key case studies that were conducted to uncover technology specific barriers in technology development these case studies include both technologies for industrial use such as wind bio energy and building energy efficiency and technologies for individual use such as light emitting diodes and photovoltaic panels the case studies also contain technologies at the innovation stage such as integrated gasification combined cycle and carbon capture and storage the second objective of this paper is to highlight and define roles of international institutions in overcoming identified barriers in clean energy technology development in this paper four areas of focus for international institutions are discussed including 1 increasing r d cooperation at the innovation stage 2 facilitation of intellectual property rights 3 supporting finance and 4 enhancing the enabling environment at the diffusion stage

behavioral hazard in health insurance a fundamental implication of standard moral hazard models is overuse of low value medical care because copays are lower than costs in these models the demand curve alone can be used to make welfare statements a fact relied on by much empirical work there is ample evidence though that people misuse care for a different reason mistakes or behavioral hazard much high value care is underused even when patient costs are low and some useless care is bought even when patients face the full cost in the presence of behavioral hazard welfare calculations using only the demand curve can be off by orders of magnitude or even be the wrong sign we derive optimal copay formulas that incorporate both moral and behavioral hazard providing a theoretical foundation for value based insurance design and a way to interpret behavioral nudges once behavioral hazard is taken into account health insurance can do more than just provide financial protection it can also improve health care efficiency jel codes d03 i12 i13 i30 i38

the empirical analysis of the determinants for environmental technological change a research agenda abstract technological change is usually considered a necessary albeit not sufficient condition for a transition to sustainability however the empirical analysis of the determinants to environmental technological change has not received too much attention in the environmental ecological economics literature and many open questions remain in this context based on a careful review of the literature this paper argues that further analysis should address several issues at different levels i e regarding the conceptual framework the thematic scope of the studies some methodological issues and other aspects related to the environmental policy variable first an integrated conceptual framework which takes into account the interplay between relevant variables influencing environmental technological change i e factors internal and external to the firm and characteristics of the environmental technologies and all the stages of this process with a greater emphasis on the invention stage should be developed other aspects should then be tackled including a focus on several themes i e a greater attention to cross sectoral technologies the barriers to different types of environmental technologies the international dimension of environmental technological change and environmental technological change in small and medium size enterprises methodological issues combination of case studies and econometric modelling and several issues related to the environmental policy variable

a welfare measure of offset effects in health insurance abstract changing health insurance coverage for one service may affect use of other insured services when improving coverage for one service reduces use of another the savings are referred to as offset effects for example costs of better coverage for prescription drugs may be partly offset by reductions in hospital costs offset effects have welfare implications but it has not been clear how to value these impacts in design of health insurance we show that plan paid rather than total spending is the right welfare measure of the offset effect and go on to develop a sufficient statistic for evaluating the welfare effects of change in coverage in the presence of multiple goods we derive a simple rule for when a coverage improvement increases welfare due to offset effects

the role of market forces in assuring contractual performance the conditions under which transactors can use the market repeat purchase mechanism of contract enforcement are examined increased price is shown to be a means of assuring contractual performance a necessary and sufficient condition for performance is the existence of price sufficiently above salvageable production costs so that the nonperforming firm loses a discounted steam of rents on future sales which is greater than the wealth increase from nonperformance this will generally imply a market price greater than the perfectly competitive price and rationalize investments in firm specific assets advertising investments thereby become a positive indicator of likely performance

entrepreneurship selection and performance a meta analysis of the impact of education in developing economies this meta analytical review of empirical studies of the impact of schooling on entrepreneurship in selection and performance in developing economies looks at variations impact across specific characteristics of the studies a marginal year of schooling in developing economies raises enterprise income by an average of 5 5 percent which is close to the average return in industrial countries the return varies however by gender rural or urban residence and the share of agriculture in the economy furthermore more educated workers typically end up in wage employment and prefer nonfarm entrepreneurship to farming the education effect that separates workers into self employment and wage employment is stronger for women possibly stronger in urban areas and also stronger in the least developed economies where agriculture is more dominant and literacy rates are lower

segmentation of the indian photovoltaic market this paper provides an analytical framework studying the actors networks and institutions and examines the evolution of the indian solar photovoltaic pv market different market segments along the lines of demand and supply of pv equipment i e on the basis of geography end use application subsidy policy and other financing mechanisms are detailed the objective of this effort is to identify segments that require special attention from policy makers donors and the ministry of non conventional energy sources the paper also discusses the evolution of the commercial pv market in certain parts of the country and trends in the maturity of the market

the price elasticity of demand for pharmaceuticals amongst high income older australians a natural experiment most high income older australians became eligible for a pharmaceutical concession through a 1999 policy change i exploit this natural experiment to estimate their price elasticity of demand for pharmaceuticals the preferred model is a nonlinear instrumental variable iv regression estimated on nationally representative repeated cross sectional survey data using the generalized method of moments gmm no significant evidence is found for endogenous take up and so cross sectional estimates are also considered taking all of the results into account the headline estimate is 0 1 implying that quantity demanded is not highly responsive to price

the optimal research and development portfolio of low carbon energy technologies a study of china to support decision making for an optimal portfolio strategy for low carbon energy technology research and development r d this study proposes a dynamic two stage stochastic programming model taking into account both the uncertainty of technological change and damages of climate change based on china s economic and technology level and expert elicitation an r d investment portfolio strategy looking at three low carbon technologies carbon capture and storage ccs solar photovoltaic pv and nuclear including nine projects is investigated through the proposed model the optimized results show that the optimal r d technology portfolio is robust to different levels of risk in climate damage however the total social costs for the optimal r d technology portfolio is lowest in the medium risk of climate damage scenario under different opportunity costs the composition of the optimal r d portfolio varies however projects for each of the three technologies always constitute the optimal r d portfolio furthermore the implication is that a technology synergistic r d strategy is conducive to enhancing the level of co2 abatement and reducing the total social cost

is addiction rational theory and evidence this paper makes two contributions to the modeling of addiction first we provide new and convincing evidence that smokers are forward looking in their smoking decisions using state excise tax increases that have been legislatively enacted but are not yet effective and monthly data on consumption second we recognize the strong evidence that preferences with respect to smoking are time inconsistent with individuals both not recognizing the true dife culty of quitting and searching for self control devices to help them quit we develop a new model of addictive behavior that takes as its starting point the standard rational addiction model but incorporates time inconsistent preferences this model also exhibits forward looking behavior but it has strikingly different normative implications in this case optimal government policy should depend not only on the externalities that smokers impose on others but also on the internalities imposed by smokers on themselves we estimate that the optimal tax per pack of cigarettes should be at least one dollar higher under our formulation than in the rational addiction case

tax incidence when individuals are time inconsistent the case of cigarette excise taxes abstract one of the most cogent criticisms of excise taxes is their regressivity with lower income groups spending a much larger share of their income on goods such as cigarettes than do higher income groups we argue that traditional quantity based measures of incidence are only appropriate under a very restrictive time consistent model of consumption of sin goods a model that is much more consistent with existing evidence on smoking decisions is a time inconsistent formulation where excise taxes on cigarettes serve a self control function that is valued by smokers who would like to quit but cannot this self control function benefits lower income groups more since they have a significantly higher price sensitivity of smoking calibrations show that as a result cigarette taxes are much less regressive than previously assumed and are even progressive for a wide variety of parameter values

love hate and murder commitment devices in violent relationships many violent relationships are characterized by a high degree of cyclicality women who are the victims of domestic violence often leave and return multiple times to explain this we develop a model of time inconsistent preferences in the context of domestic violence this time inconsistency generates a demand for commitment we present supporting evidence that women in violent relationships display time inconsistent preferences by examining their demand for commitment devices we find that no drop policies which compel the prosecutor to continue with prosecution even if the victim expresses a desire to drop the charges result in an increase in reporting no drop policies also result in a decrease in the number of men murdered by intimates suggesting that some women in violent relationships move away from an extreme type of commitment device when a less costly one is offered

moral hazard in insurance value based cost sharing and the benefits of blissful ignorance the conventional theory of optimal coinsurance rates for health insurance with moral hazard indicates that coinsurance should vary with the price responsiveness or price elasticity of demand for different medical services an alternative theory called value based cost sharing indicates that coinsurance should be lower for services with higher marginal benefits relative to costs this paper reconciles the two views it shows that if patient demands are based on correct information optimal coinsurance is the same under either theory if patient demands differ from informed demands optimal coinsurance depends both on information imperfection and price responsiveness value based cost sharing can be superior to providing information even if the cost of information is minimal when patient demands fall short of informed demands an extended numerical example illustrates these points

reconsidering the moral hazard risk avoidance tradeoff the received model for optimal demand side cost sharing trades off moral hazard and risk avoidance this model appears to lie behind recent increases in initial cost sharing such as those embodied in health savings accounts and health reimbursement accounts at the same time there is evidence that lower cost sharing for certain drugs can reduce future total health care costs and or improve future health and this may be true of other medical services as well to the degree that individuals remain in the same common insurance pool lower cost sharing that induces increases in certain services that reduce total costs including future costs represents a classic case for a subsidy and will minimize an employer s labor costs even if total costs increase the value of a change in health could increase more in that case such a subsidy is consistent with recent work in behavioral economics for those with self control problems

female labor force participation in developing and developed countries consideration of the informal sector t he steady increase in the labor force participation of married women in the united states over the last few decades has stimulated considerable interest in the economic analysis of a woman s decision to work pioneering work by mincer 1962 and cain 1966 has served as a theoretical and empirical foundation for numerous studies of female labor force participation this research typically treats a woman s current labor force status measured as a dummy variable for the individual and as a rate for the population as a measure of labor supply which depends upon economic and demographic characteristics such as female earnings male earnings non earnings income schooling work experience age number of children and so on notable examples are bowen and finegan 1969 cogan 1975 1978 gronau 1973 heckman 1974 1980 and schultz 1980 while the associated theoretical models and statistical techniques have been refined considerably especially by lewis 1972 ben porath 1973 and heckman 1974 1979 the coefficients estimated using u s data have remained reasonably robust also there is substantial agreement among micro level and aggregate results see cain 1966 and bowen and finegan 1969 for comparisons as this body of literature has grown the economic models developed within it have been implemented to analyze the labor force behavior of women in other countries however there is no consistent international pattern in the behavioral trends of the female labor force perhaps the most notable difference in the economic opportunities available to women in many other countries is that they may work in the informal sector of the labor market women may be considered economically active and may be counted as being in the labor force as they produce goods at home for market sale work on the family farm or work in a small family run business the most convenient means of categorizing workers as being in the informal sector is by their employment status following jaffe and azumi 1960 we assume that women reported as self employed or as family workers are engaged in the informal sector of the labor force almost all women in the u s labor force work as employees only 6 6 worked as self employed or family workers in 1978 given japan s advanced economic development a surprisingly large fraction 38 4 in 1978 of its female labor force comprises self employed and family workers clearly in the united states and countries with a similar distribution of the labor force by employment status the labor force participation decision may be treated as the choice to work or not to work however if individuals regard the decision to enter the labor force as an employee as being distinct from the choice to enter the labor force as a family worker then economic models of labor force participation which treat these choices as identical will incorporate a specification bias the labor force participation decision may differ between these two sectors for several reasons first the wage offers may differ by sector second while entering the informal sector may be virtually frictionless there may be fixed costs among them commuting time and child care associated with working in the formal sector third family workers may face more flexible working schedules than paid employees the latter group may be subject to contractual working hours in order to treat the labor force decisions in coiuntines with significant informal sectors this received for publication march 16 1981 revision accepted for publication september 15 1982 rutgers university this paper is a revision of work begun with my doctoral dissertation i would like to thank h gregg lewis and t dudley wallace for their suggestions and hideo okamoto for providing the data set i would also like to thank david crawford toshiaki tachibanaki two anonymous referees and the participants of the columbia labor workshop the japan economic seminar and the yale labor and population workshop for their comments remaining errors are my own this research was supported by a postdoctoral fellowship from the national institutes of health additional funding was provided by the william and flora hewlett foundation grant to the yale economic demography program i statistical abstract of the u s and japan statistical yearbook

empirical and public choice evidence for hyperbolic social discount rates and the implications for intergenerational discounting the derivation of the correct discount rate for intergenerational projects in cost benefit analysis is particularly contentious public choice has resulted in lower discretionary exponential discount rates for many intergenerational projects in britain and the usa this is shown to be strong indirect evidence that the true social discount rate may be a hyperbolic rather than an exponential function there is also empirical evidence for this hypothesis the hyperbolic nature of discounting is also a standard finding in the behavioural sciences for intergenerational time frames hyperbolic discount rates should be employed together with exponential discount rates in cost benefit sensitivity analyses

addiction and cue triggered decision processes we propose a model of addiction based on three premises 1 use among addicts is frequently a mistake 2 experience sensitizes an individual to environmental cues that trigger mistaken usage 3 addicts understand and manage their susceptibilities we argue that these premises find support in evidence from psychology neuroscience and clinical practice the model is tractable and generates a plausible mapping between behavior and the characteristics of the user substance and environment it accounts for a number of important patterns associated with addiction gives rise to a clear welfare standard and has novel implications for policy

procrastination and obedience in this lecture i shall focus on situations involving repeated decisions with time inconsistent behavior although each choice may be close to maximizing and therefore result in only small losses the cumulative effect of a series of repeated errors may be quite large thus in my examples decision makers are quite close to the intelligent well informed individuals usually assumed in economic analysis but cumulatively they make seriously wrong decisions that do not occur in standard textbook economics this lecture discusses and illustrates several pathological modes of individual and group behavior procrastination in decision making undue obedience to authority membership of seemingly normal individuals in deviant cult groups and escalation of commitment to courses of action that are clearly unwise in each case individuals choose a series of current actions without fully appreciating how those actions will affect future perceptions and behavior the standard assumption of rational forwardlooking utility maximizing is violated the nonindependence of errors in decision making in the series of decisions can be explained with the concept from cognitive psychology of undue salience or vividness for example present benefits and costs may have undue salience relative to future costs

the source of optimality in action it is well known that the nature of the information set and the axioms of rational choice are critical in determining the type of ranking on which agents are held to act in economic theory this paper argues that the concept of the optimising agent is also sensitive to the conception of the relation between a ranking of options facing an agent and concrete action what is termed the realisation process three conceptions of the realisation process are examined which are seen to lead to three quite distinct views on the role of agency the enabling conditions under which the concept of the optimising agent may be legitimately applied and the resulting domain of application of optimisation

three is a crowd exploring the potential of crowdfunding for renewable energy in the netherlands there is a huge gap between demand and supply of finance for energy transitions and the financial and economic crisis have had a negative impact in the already meagre funds for transforming the energy system towards renewable sources in this paper we explore whether crowdfunding for renewable energy as a novel sociotechnical practice developed in a niche has the potential to break through and transform both the energy and the financial regimes utilising the multi level perspective theory we empirically investigate crowdfunding platforms linked to renewable electricity projects in the netherlands the main conclusion is that the volume of crowdfunding today is low but the dynamic of these projects holds potential there is limited indication of learning processes until now as well as limited support from regime actors pointing at a low level of niche stabilization and break through potential which may however be related to the early stage of development of crowdfunding in the netherlands on the other hand the heterogeneity of crowdfunders is very promising platforms dedicated to renewable electricity exclusively and with an investment based business model seem to be the most successful we show how governmental market regulation and support mechanisms are shaping crowdfunding as a business model and discuss the implications for other countries

the behavioral life cycle hypothesis self control mental accounting and framing are incorporated in a behavioral enrichment of the life cycle theory of saving called the behavioral life cycle blc hypothesis the key assumption of the blc theory is that households treat components of their wealth as nonfungible even in the absence of credit rationing specifically wealth is assumed to be divided into three mental accounts current income current assets and future income the temptation to spend is assumed to be greatest for current income and least for future income considerable empirical support for the blc theory is presented primarily drawn from published econometric studies

optimal sin taxes abstract we investigate sin taxes on unhealthy items such as fatty foods that people may by their own reckoning consume too much of we employ a standard optimal taxation framework but replace the standard assumption that all consumers have 100 self control with an assumption that some consumers may have some degree of self control problems we show that imposing taxes on unhealthy items and returning the proceeds to consumers can generally improve total social surplus because such taxes counteract over consumption by consumers with self control problems while at the same time they naturally redistribute income to consumers with no self control problems who consume less such taxes can even create pareto improvements finally we demonstrate with some simple numerical examples that even if the population exhibits relatively few self control problems optimal taxes can still be large

poverty and self control we argue that poverty can perpetuate itself by undermining the capacity for self control in line with a distinguished psychological literature we consider modes of self control that involve the self imposed use of contingent punishments and rewards we study settings in which consumers with quasi hyperbolic preferences confront an otherwise standard intertemporal allocation problem with credit constraints our main result demonstrates that low initial assets can limit self control trapping people in poverty while individuals with high initial assets can accumulate indefinitely thus even temporary policies that initiate accumulation among the poor may be effective we examine implications concerning the effect of access to credit on saving the demand for commitment devices the design of financial accounts to promote accumulation and the variation of the marginal propensity to consume across income from different sources we also explore the nature of optimal self control demonstrating that it has a simple and behaviorally plausible structure that is immune to self renegotiation

discounting the distant future how much do uncertain rates increase valuations abstract we demonstrate that when the future path of the discount rate is uncertain and highly correlated the distant future should be discounted at significantly lower rates than suggested by the current rate we then use two centuries of us interest rate data to quantify this effect using both random walk and mean reverting models we compute the certainty equivalent rate that summarizes the effect of uncertainty and measures the appropriate forward rate of discount in the future under the random walk model we find that the certainty equivalent rate falls continuously from 4 to 2 after 100 years 1 after 200 years and 0 5 after 300 years at horizons of 400 years the discounted value increases by a factor of over 40 000 relative to conventional discounting applied to climate change mitigation we find that incorporating discount rate uncertainty almost doubles the expected present value of mitigation benefits

a social capital paradox entrepreneurial dynamism in a small world clean technology cluster abstract clean tech entrepreneurs have struggled to gain investor confidence because of some particular characteristics and circumstances of the industry this research combines network and sustainable development literature in the clean tech context to support the logic of a new investment approach that may stimulate sustainable investing in clean tech theory is proposed to suggest that there may be an advantageous social capital paradox where strong ties in a cluster lead to dynamism rather than decay the clean tech industry provides a context where strong ties offer network stability in a small world cluster such that it is a value creating organizational form offering greater dynamism two related propositions are developed to support the social capital paradox they lead to a theoretical conclusion that long term integrated partner solutions where partners are also resource constrained lead to successful alliances supporting a dynamic cluster that will grow over time a practical conclusion is that investing in a connected cluster of firms might be less risky compared to investing in a new firm or even a portfolio of well diversified assets de risking clean production investments may be achievable through a small world network cluster backed security

optimal health insurance for multiple goods and time periods we examine the efficiency based arguments for second best optimal health insurance with multiple treatment goods and multiple time periods correlated shocks across health care goods and over time interact with complementarity and substitutability to affect optimal cost sharing health care goods that are substitutes or have positively correlated demand shocks should have lower optimal patient cost sharing positive serial correlations of demand shocks and uncompensated losses that are positively correlated with covered health services also reduce optimal cost sharing our results rationalize covering pharmaceuticals and outpatient spending more fully than is implied by static one good or one period models

cross disciplinary evidence for hyperbolic social discount rates researchers in different disciplines have independently found evidence to suggest that the social discount rate may be hyperbolic rather than exponential in nature both behaviorist research and some empirical economics studies support the hyperbolic discounting hypothesis u s and u k government discounting dispensations for some long run public development projects are explicable in terms of an underlying hyperbolic social discount rate a statistical aggregation argument demonstrates that even if the behaviorist economics and public choice evidence for hyperbolic discounting is not conclusive the social discount rate of a set of people who individually express time preferences best modeled by exponential discounting functions is nonetheless hyperbolic further empirical economics studies of discounting preferences are required comparisons of different national discounting practices would also be useful to see how widespread is the use of unusually low exponential rates of discount for long run projects the application of hyperbolic discounting would have most impact in long run benefit cost analyses however government agencies would require overwhelming evidence before switching from exponential to hyperbolic discounting

on what basis should health be discounted the discount rate to be applied in health care programmes should be based on the time preference rate for health and this same rate should be applied to costs as well due to the limited tradeability of health when eliciting its time preference rate the intertemporal choices must be framed in such a way as to resemble as closely as possible those facing health planners and decision makers

redefining innovation eco innovation research and the contribution from ecological economics while innovation processes toward sustainable development eco innovations have received increasing attention during the past years theoretical and methodological approaches to analyze these processes are poorly developed against this background the term eco innovation is introduced in this paper addressing explicitly three kinds of changes towards sustainable development technological social and institutional innovation secondly the potential contribution of neoclassical and co evolutionary approaches from environmental and innovation economics to eco innovation research is discussed three peculiarities of eco innovation are identified the double externality problem the regulatory push pull effect and the increasing importance of social and institutional innovation while the first two are widely ignored in innovation economics the third is at the least not elaborated appropriately the consideration of these peculiarities may help to overcome market failure by establishing a specific eco innovation policy and to avoid a technology bias through a broader understanding of innovation finally perspectives for a specific contribution of ecological economics to eco innovation research are drawn it is argued that methodological pluralism as established in ecological economics would be very beneficial for eco innovation research a theoretical framework integrating elements from both neoclassical and evolutionary approaches should be pursued in order to consider the complexity of factors influencing innovation decisions as well as the specific role of regulatory instruments and the experience gathered in ecological economics integrating ecological social and economic aspects of sustainable development is highly useful for opening up innovation research to social and institutional changes 2000 elsevier science b v all rights reserved

driving effect of technology innovation on energy utilization efficiency in strategic emerging industries abstract under the policy of energy saving and emission reduction technological innovation has become the key power driver to improve energy utilization efficiency by using the panel data of 21 industrial segments between 2000 and 2015 this paper investigates the driving effect of technological innovation on energy utilization efficiency in strategic emerging industries and analyzes the critical factors influencing the driving effect of technological innovation by the stochastic frontier analysis method the empirical result shows that technological innovation between 2000 and 2015 has had a significant positive driving effect on the energy utilization efficiency of strategic emerging industries and exhibits a development trend of year by year steady state growth on the whole the greater the value of the development expenditure of new green products and the investment in environmental pollution treatment the greater the technological efficiency the greater the value of the transformation expenditure of energy saving technology the greater the technological inefficiency finally the paper proposes the countermeasures and suggestions for the driving effect of technological innovation on energy utilization efficiency in strategic emerging industries an empirical study is made to analyze the driving effect of technological innovation on energy utilization efficiency the positive and negative factors of technological innovation are forgotten strategic emerging industries can select optimal innovation behavior to improve quality and efficiency of energy utilization based on the results

theorizing change revisited an amended process model of institutional innovations and changes in institutional fields abstract the recent abandonment of old taxis and the introduction and diffusion of new taxis and car ride sharing services of uber and the sharing economy in general shows that institutional environments change this paper provides a review on institutional change based on 29 previously published case studies based on this review and the uber case an overview of antecedents for institutional change is developed furthermore an existing model describing the process of institutional change greenwood et al 2002 is validated and extended this extended process model describes the development and different phases of institutional change this paper aims to enrich our theoretical understanding of institutional change and to provide insights for change agents

the national system of innovation in historical perspective contrary to some recent work on so called globalisation this paper argues that national and regional systems of innovation remain an essential domain of economic analysis their importance derives from the networks of relationships which are necessary for any firm to innovate whilst external international connections are certainly of growing importance the influence of the national education system industrial relations technical and scientific institutions government policies cul tural traditions and many other national institutions is fundamental the historical examples of germany japan and the former ussr illustrate this point as well as the more recent contrast between east asian and latin american countries introduction the national system of friedrich list according to this author s recollections the first person to use the expression national system of innovation was bengt ake lundvall and he is also the editor of a highly original and thought provoking book 1992 on this subject however as he and his colleagues would be the first to agree and as lundvall himself points out the idea actually goes back at least to friedrich list s conception of the national system of political economy 1841 which might just as well have been called the national system of innovation the main concern of list was with the problem of germany overtaking england and for underdeveloped countries as germany then was in relation to england he advocated not only protection of infant industries but a broad range of policies designed to accelerate or to make possible industrialisation and economic growth most of these policies were concerned with learning about new technology and applying it the racialist and colonialist overtones of the book were in strong contrast to the inter nationalist cosmopolitan approach of the classical free trade economists and list s belief that holland and denmark should join the german bund and acquire german nationality because of their descent and whole character reads somewhat strangely in the european community of today nevertheless despite these unattractive features of his outlook he clearly anticipated many contemporary theories after reviewing the changing ideas of economists about development in the years since the second world war the world bank 1991 concludes that it is intangible investment in knowledge accumulation which is decisive rather than physical capital investment as was at one time believed pages 33 35 the report cites the new growth theory

sustainability oriented innovation system analyses of brazil russia india china south africa turkey and singapore abstract the coherency of research development and innovation processes are vital in promoting a more resource efficient society sustainability oriented innovation systems define specific kinds of innovation systems i e those that are directed to the aims of sustainable development this paper develops an integrated method with four layers of analysis to evaluate the priorities and performances of such systems the method is applied to a sample of emerging and innovation based economies namely brazil russia india china south africa turkey and singapore the analyses consider the 6 main activities or functional dynamics of innovation systems and a set of 19 keywords the keywords relate to the thematic clusters of renewable energy technologies energy efficiency and environmental management the priorities of the countries in each main interaction of the system are classified accordingly the priorities are compared to the existing level of specialization in the keywords based on the intermediate outputs of the system the analyses cover 153 838 papers and 15 138 patents between the years 2003 and 2014 a sustainable innovation index is developed to aggregate the normalized values of country performance across all keywords singapore receives the highest value 21 17 and the average of brazil russia india china and south africa is 14 91 the results determine the ability of countries to align priorities and performance towards more mature innovation systems for sustainable development

evaluating contingent and actual contributions to a local public good tsetse control in the yale agro pastoral zone burkina faso abstract in this case study of the yale agro pastoral zone in southern burkina faso the sustainability of tsetse control as a local public good was shown to depend upon farmers contributions to establish and maintain the traps and targets that attract and kill tsetse flies contingent valuation cv techniques were used to generate estimates of farmers willingness to pay for tsetse control in money labour or both forms of payment of the 261 households that participated in the cv survey these proportions were 23 37 and 40 respectively indicating differentiation among the population and an overall preference for labour contribution a comparison of predicted versus actual contribution of labour indicated that only 56 of households that said they would contribute actually contributed 3 of households that said they would not contribute actually contributed major factors affecting contingent contributions of labour in discrete choice models were identified as well as those to account for in any successful scheme for actual labour contribution these factors include the age of household head offtake of cattle involvement in secondary activities membership in rural organizations current expenditure on drug therapy and cash on hand the results also indicate that full cost recovery of the investment in targets about us 8000 could not be achieved in the short run with the proposed contribution of us 0 90 1 00 per month per household contingent contributions of money were interpreted as maximum donations to expect of beneficiaries as part of the total cost of providing tsetse control

incentives for procrastinators we examine how principals should design incentives to induce time inconsistent procrastinating agents to complete tasks efficiently delay is costly to the principal but the agent faces stochastic costs of completing the task and efficiency requires waiting when costs are high if the principal knows the task cost distribution she can always achieve first best efficiency if the agent has private information the principal can induce first best efficiency for time consistent agents but often cannot for procrastinators we show that second best optimal incentives for procrastinators typically involve an increasing punishment for delay as time passes

determinants of women s time allocation in rural bangladesh time allocation patterns of women in developing countries have received attention due to interest in 2 problems the 1st is whether womens time is governed by economic constraints or by local customs and patriarchy 2nd is the question of whether these women have a 2 way to work or not to work or a 3 way to work inside or outside the family or not to work choice structure an economic framework is outlined that elucidates how jointly made decisions on labor force participation and hours of work affect womens time allocation decisions this econometric model of womens time allocation is based on a random sample of 500 households in different regions of rural bangladesh market production is defined as work for cash income whether inside or outside the home the study focused on married women aged 15 49 of whom 195 out of 444 engaged in market production these women tended to be younger live closer to market centers and have more schooling than those not participating in market production time use by these women was influenced by individual and household economic factors and was not rigidly set by local customs thus women in rural bangladesh will probably respond to market opportunities as development proceeds there the husbands educational level also had a large effect on time allocation and this may have been due to a spouse selection bias rather than the husband determining his wifes time use

optimal health insurance for prevention and treatment this paper reexamines the efficiency based arguments for optimal health insurance extending the classic analysis to consider optimal coverage for prevention and treatment separately our paper considers the tradeoff between individuals risk reduction on the one hand and both ex ante and ex post moral hazard on the other we demonstrate that it is always desirable to offer at least some insurance coverage for preventive care if individual consumers ignore the impact of their preventive care on the health premium using a utility based framework we reconfirm the conventional tradeoff between risk avoidance by risk sharing and moral hazard for insuring treatment goods uncompensated losses that reduce effective income provide a new efficiency based argument for more generous insurance coverage for prevention and treatment of health conditions the optimal coinsurance rates for prevention and for treatment are not identical

a tale of two market failures technology and environmental policy abstract market failures associated with environmental pollution interact with market failures associated with the innovation and diffusion of new technologies these combined market failures provide a strong rationale for a portfolio of public policies that foster emissions reduction as well as the development and adoption of environmentally beneficial technology both theory and empirical evidence suggest that the rate and direction of technological advance is influenced by market and regulatory incentives and can be cost effectively harnessed through the use of economic incentive based policy in the presence of weak or nonexistent environmental policies investments in the development and diffusion of new environmentally beneficial technologies are very likely to be less than would be socially desirable positive knowledge and adoption spillovers and information problems can further weaken innovation incentives while environmental technology policy is fraught with difficulties a long term view suggests a strategy of experimenting with policy approaches and systematically evaluating their success

international technology oriented agreements to address climate change much discussion has surrounded possible alternatives for international agreements on climate change particularly post 2012 among these alternatives technology oriented agreements toas are perhaps the least well defined we explore what toas may consist of why they might be sensible which toas already exist in international energy and environmental governance and whether they could make a valuable contribution to addressing climate change we find that toas aimed at knowledge sharing and coordination research development or demonstration could increase the overall efficiency and effectiveness of international climate cooperation but are likely to have limited environmental effectiveness on their own technology transfer agreements are likely to have similar properties unless the level of resources expended is large in which case they could be environmentally significant technology specific mandates or incentives could be environmentally effective within the applicable sector but are more likely to make a cost effective contribution when viewed as a complement to rather than a substitute for flexible emissions based policies these results indicate that toas could potentially provide a valuable contribution to the global response to climate change the success of specific toas will depend on their design implementation and the role they are expected to play relative to other components of the policy portfolio

uncertain discount rates in climate policy analysis abstract consequences in the distant future such as those from climate change have little value today when discounted using conventional rates this result contradicts our gut feeling about such problems and often leads to ad hoc application of lower rates for valuations over longer horizons a step facilitated by confusion and disagreement over the correct rate even over short horizons we review the theory and intuition behind the choice of discount rates now and importantly the impact of likely variation in rates in the future correlated changes in future rates imply that the distant future should be discounted at much lower rates than suggested by the current rate thereby raising the value of future consequences regardless of opinions concerning the current rate using historic data to quantity the likely changes and correlation in changes in future rates we find that future valuations rise by a factor of many thousands at horizons of 300 years or more almost doubling the expected present value of climate mitigation benefits relative to constant 4 discounting ironically uncertainty about future rates reduces the ratio of valuations based on alternate choices of the current rate

patient cost sharing and healthcare spending growth in this paper we explore the role patient incentives play in slowing healthcare spending growth evidence suggests that while patients do indeed respond to financial incentives cost sharing does not uniformly improve value rather cost sharing provisions must be deliberately structured and targeted to reduce care of low marginal value other mechanisms may be helpful in targeting particular populations or types of utilization the spillover effects between privately insured and publicly insured populations as well as market imperfections suggest a potential role for public policy in promoting insurance design that slows spending growth while increasing the health that each dollar buys

uk innovation systems for new and renewable energy technologies drivers barriers and systems failures abstract a better understanding of the systemic processes by which innovation occurs is useful both conceptually and to inform policy making in support of innovation in more sustainable technologies this paper analyses current innovation systems in the uk for a range of new and renewable energy technologies and generates policy recommendations for improving the effectiveness of these innovation systems although incentives are in place in the uk to encourage innovation in these technologies system failures or gaps are identified in moving technologies along the innovation chain preventing their successful commercialisation sustained investment will be needed for these technologies to achieve their potential it is argued that a stable and consistent policy framework is required to help create the conditions for this in particular such a framework should be aimed at improving risk reward ratios for demonstration and pre commercial stage technologies this would enhance positive expectations stimulate learning effects leading to cost reductions and increase the likelihood of successful commercialisation