structural causes and regime consequences regimes as intervening variables international regimes are defined as principles norms rules and decisionmaking procedures around which actor expectations converge in a given issue area as a starting point regimes have been conceptualized as intervening variables standing between basic causal factors and related outcomes and behavior there are three views about the importance of regimes conventional structural orientations dismiss regimes as being at best ineffectual grotian orientations view regimes as an intimate component of the international system and modified structural perspectives see regimes as significant only under certain constrained conditions for grotian and modified structuralist arguments which endorse the view that regimes can influence outcomes and behavior regime development is seen as a function of five basic causal variables egoistic self interest political power diffuse norms and principles custom and usage and knowledge

assessing and rationalizing the management of a portfolio of clean technologies experience from a french environmental fund and a world bank cleaner production demonstration project in china abstract industrial pollution is intrinsically linked to the adoption and development of technological alternatives environmental policies from regulation to economic instruments in industrialized nations as well as in developing countries and in transition economies cannot ignore the technological dimension when they aim at controlling or preventing the pollution generated by industrial activities the implementation of cleaner technologies has been examined here for a french environmental fund the water agency agence de l eau rhin meuse and for a world bank cleaner production demonstration project in china a three dimensional assessment methodology including 1 the level of innovation 2 the type of process targeted and 3 a process flow oriented categorization of technologies has been developed and has identified significant heterogeneity for the two venues using foster s theory on innovation s curves three kinds of interpretation are proposed to distinguish what is due to intrinsic differences existing between the various technological choices from what could be explained by resistance to change inside firms or to policy distortions thus this assessment focuses on evaluating the performance of financial assistance for furthering environmental policy identifying technological alternatives which should be particularly promoted and monitoring the evolution of the various technological choices over time

higher education subsidies and heterogeneity a dynamic analysis abstract in this paper we develop a simple dynamic general equilibrium framework to address the effects of increasing higher education subsidies in the us from their already substantial levels on inequality welfare and efficiency we focus on three policies the first is a tax and subsidy scheme that ensures that the parental decision to send a child to college is independent of income such a policy decreases the efficiency of the utilization of education resources while the welfare gain is minimal the second policy maximizes the fraction of college educated labor this results in a large drop in the above mentioned efficiency with little or no welfare gain the third is the provision of merit based aid to the poor as opposed to purely need based aid this policy can increase education efficiency with little decrease in welfare based on these experiments we conclude that the case for further increases in higher education subsidies might have been overstated

sheepskin effects in the returns to education some previous discussions have dismissed screening theories of education partly on the ground that diploma years of education do not confer especially large earnings gains similarly most empirical research on earnings functions has assumed an absence of sheepskin effects we report evidence however of substantial and statistically significant sheepskin effects although this suggests that the previous dismissals of the screening hypothesis were premature our evidence of sheepskin effects is amenable to nonscreening interpretations also according to screening theories of education individuals with more schooling tend to earn more not because or at least not solely because schooling makes them more productive but rather because it credentiates them as more productive a frequently cited article by layard and psacharopoulos 1974 however dismissed the importance of the screening hypothesis on the grounds that several of its refutable predictions were not supported by available evidence one of these was the sheepskin prediction that wages will rise faster with extra years of education when the extra year also conveys a certificate after surveying a number of studies layard and psacharopoulous henceforth lp concluded that rates of return to dropouts are as high as to those who complete a course which refutes the sheepskin version of the screening hypothesis since publication of the lp paper an undergraduate labor economics textbook has cited lp s analysis of sheepskin effects as telling criticism of the screening hypothesis a prominent proponent of the screening hypothesis riley 1979 has accepted lp s summary of the empirical evidence but responded that some versions of the screening hypothesis do not imply sheepskin effects in the meantime the ongoing flood of empirical research on earnings functions typically has continued to treat the natural logarithm of the wage rate as a linear or occasionally quadratic function of years of education with no allowance for discontinuities in diploma years 2 the estimated rates of return used by lp were based on data that did not disaggregate dropouts earnings by how many years of school they had completed lp acknowledged we would have preferred to show the earnings gain associated with each year of the course including the year when it was successfully completed this note presents a reanalysis of sheepskin effects based on the type of data lp wished they had the results contain very strong evidence of sheepskin effects after all the next section describes our analysis and the following section summarizes and discusses our

the role of transnational dimensions in emerging economy technological innovation systems for clean tech the technological innovation system tis framework and its system functions have become a popular analytical tool for the study of clean tech innovation there is increasing attention for the role of emerging economies in global clean tech innovation but the applicability of tis to emerging economies cases is not entirely straightforward a key issue is the limited geographical considerations in particular transnational dimensions in tis whereas earlier perspectives on innovation in emerging economies have stressed the role of such transnational dimensions this paper elaborates transnational tis actor networks and institutions categorizes these in relation to tis functions and describes their potential to induce or block tis development in emerging economies we draw on insights from the perspectives of national learning systems international technology transfer and global production networks for this purpose we conclude that the potential effects of these transnational dimensions may be accurately grasped by the existing list of system functions lending credence to its further application of the tis framework on emerging economy case studies policy makers in emerging economies should recognize these transnational dimensions and seek to optimize their potential effect on domestic tis development taking in to consideration a realistic assessment of its role in the global tis

public versus private investment in human capital endogenous growth and income inequality in this paper we present an overlapping generations model with heterogeneous agents in which human capital investment through formal schooling is the engine of growth we use simple functional forms for preferences technologies and income distribution to highlight the distinction between economies with public education and those with private education we find that income inequality declines more quickly under public education on the other hand private education yields greater per capita incomes unless the initial income inequality is sufficiently high we also find that societies will choose public education if a majority of agents have incomes below average

demand pull technology push and government led incentives for non incremental technical change abstract rising expectations about future demand for new technologies increase the incentives for investments in innovation by enlarging payoffs to successful innovations how well does this notion of demand pull apply to non incremental technological change when demand is largely attributable to actions by governments in this case inventors of the most important inventions did not respond positively to strong demand pull policies filing of highly cited patents declined precipitously just as demand for wind power created a multi billion dollar market three explanations for this apparent inconsistency with the demand pull hypothesis played a role 1 the rapid convergence on a single dominant design limited the market opportunity for non incremental technical improvements 2 even though the policies implemented were stringent enough to stimulate demand uncertainty in their longevity dampened the incentives for inventions that were likely to take several years to pay off and 3 alternative explanations such as declining r d funding and weakening presidential engagement on energy appear to have been important

prospects for global market expansion of china s wind turbine manufacturing industry abstract emerging economies are increasingly contributing to global innovation including clean tech innovation the development of china s wind power sector has often been used to illustrate this point china s domestic wind power market is the largest in the world and is largely supplied by domestic manufacturers competition for market share in the domestic market may pressure firms to innovate which consecutively improves prospects for global expansion this paper reviews developments in china s domestic wind turbine market using the technological innovation system framework we analyze the pressure to innovate arising from market competition and assess the prospects for global expansion of chinese wind turbine manufacturers we conclude that domestic customers are not pressured or incentivized to perform with respect to power output such that turbine manufacturers are not pressured to perform with respect to turbine efficiency or maintenance needs pressure to innovate is further reduced by formalizing connections between wind farm developers and turbine manufacturers chinese turbine manufacturers cannot yet compete with leading global brands in technological leadership the prospects for exports are improved however by the preferential supply of project financing from institutional investors such as the china development bank from chinese utilities that seek global expansion and from the manufacturers themselves

handling financial resource mobilisation in technological innovation systems the case of chinese wind power to mitigate climate change a rapid and large scale expansion of sustainable innovations such as renewable energy technologies is crucial china s track record of wind power development shows both speed and scale that can provide valuable knowledge of how to stimulate and maintain transformation of energy systems the growth was made possible partly by ample access to financial capital however the rapid growth also led to growing pains and made the industry face increasing financial constraints while these constraints partly relate to structures and trends that are external to the wind power innovation system they were also a consequence of the particular path taken in chinese wind power development the case demonstrates that if a full fledged industry is to be developed and sustained a balanced growth is required and all innovation system functions need due attention sooner or later conceptually the article contributes by further exploring how mobilisation of financial resources affect and is affected by overall system dynamics

the optimum quantity of debt abstract we find that the welfare gains to being at the optimum quantity of debt rather than the current us level are small and therefore concerns regarding the high level of debt in the us economy may be misplaced this finding is based on a model of a large number of infinitely lived households whose saving behavior is influenced by precautionary saving motives and borrowing constraints this model incorporates a different role for government debt than is found in standard models and it captures different cost benefit trade offs on the benefit side government debt enhances the liquidity of households by providing an additional means of smoothing consumption and by effectively loosening borrowing constraints on the cost side the implied taxes have adverse wealth distribution and incentive effects in addition government debt crowds out capital via higher interest rates and lowers per capita consumption

requiem for the representative consumer aggregate implications of microeconomic consumption behavior macroeconomists pursuing microfoundations for aggregate consumption have generally adopted one of two approaches either to model microeconomic consumption behavior carefully and then to aggregate or to thoroughly understand the behavior of a representative consumer in general equilibrium then to introduce microeconomic risk and heterogeneity the broad conclusion from the bottom up approach has been that precautionary saving and microeconomic heterogeneity can profoundly change behavior stephen p zeldes 1989 angus s deaton 1991 christopher d carroll 1992 the broad conclusion from the top down approach has been that precautionary saving is of little importance in determining the aggregate capital stock s rao aiyagari 1994 per krusell and anthony a smith 1998 leading some economists to conclude that heterogeneity is unimportant for macroeconomic purposes this paper shows that while general equilibrium effects do imply that the aggregate magnitude of precautionary saving is modest nevertheless when a model with uninsurable idiosyncratic risk is modified so that it can match the key micro facts it produces behavior very different in important respects from that produced by the representative agent economy this leads to the conclusion that for many purposes the representative consumer model should be abandoned in favor of a model which matches key microeconomic facts this abstract was borrowed from another version of this item

the demand bargaining set general characterization and application to majority games abstract the cooperative solution concept introduced here the demand bargaining set contains the core and is included in the zhou bargaining set eliminating the dominated coalition structures the demand vectors belonging to the demand bargaining set are self stable in the class of constant sum homogeneous weighted majority games the demand bargaining set is nonempty and predicts a unique demand vector namely a proportional distribution within minimal winning coalitions the noncooperative implementation of the demand bargaining set is obtained for all the games that satisfy the one stage property

renewable energy investment by the world bank world bank group lending for renewable energy accelerated in the 1990s and resulted in 17 approved projects with 700 million in bank loans and 230 million in grants by the global environment facility the bank s 1999 energy sector strategy fuel for thought charted new directions for renewable energy investment the present paper considers the implementation challenges of fuel for thought strategies and the opportunities for carrying them out the paper distinguishes between agendas in the energy and rural development sectors and reviews limitations to implementing these agendas lessons from projects are just emerging but suggest ve areas of support for renewable energy by the bank in the future renewable energy nancing electric power policy frameworks rural energy enterprises regulated rural energy concessions and domestic technology manufacturing interviews with the private sector suggest additional forms of support assist with business plans nance pre feasibility studies reduce commercial risks support joint ventures build market volume and stability and pilot and test innovative business models the e ectiveness of the bank in following through on its ambitious agenda fundamentally rests on the willingness and commitment of developing countries to pursue these strategies and the degree to which renewable energy applications are seen to serve countries development priorities 2001 elsevier science ltd all rights reserved

wealth inequality and intergenerational links previous work has had difficulty generating household saving behaviour that makes the distribution of wealth much more concentrated than that of labour earnings and that makes the richest households hold onto large amounts of wealth even during very old age i construct a quantitative general equilibrium overlapping generations model in which parents and children are linked by accidental and voluntary bequests and by earnings ability i show that voluntary bequests can explain the emergence of large estates while accidental bequests alone cannot and that adding earnings persistence within families increases wealth concentration even more i also show that the introduction of a bequest motive generates lifetime savings profiles more consistent with the data

the family as an incomplete annuities market families can self insure against uncertain dates of death through implicit or explicit agreements with respect to consumption and interfamily transfers interfamily transfers need have nothing to do with altruistic feelings they may simply reflect risk sharing behavior of completely selfish family members although family annuity markets are incomplete even small families can substitute by more than 70 percent for perfect market annuities given adverse selection and transaction costs family risk pooling may be preferred to public market annuities in the absence of public annuities these risk sharing arrangements provide powerful incentives for marriage and family formation

the composition of foreign direct investment and protection of intellectual property rights evidence from transition economies while existing literature has examined the impact of intellectual property protection on the volume of foreign direct investment fdi little is known about its effect on the composition of fdi inflows the author addresses this question empirically using a unique firm level data set from eastern europe and the former soviet union she finds that weak protection deters foreign investors in technology intensive sectors that rely heavily on intellectual property rights the results also indicate that a weak intellectual property regime encourages investors to undertake projects focusing on distribution rather than local production the latter effect is present in all sectors not just those relying heavily on intellectual property protection

income distribution and macroeconomics this paper analyzes the role of wealth distribution in macroeconomics through investment in human capital it is shown that in the presence of credit markets imperfections and indivisibilities in investment in human capital the initial distribution of wealth affects aggregate output and investment both in the short and in the long run as there are multiple steady states this paper therefore provides an additional explanation for the persistent differences in per capita output across countries furthermore the paper shows that cross country differences in macroeconomic adjustment to aggregate shocks can be attributed among other factors to differences in wealth and income distribution across countries

a comparative analysis of photovoltaic technological innovation systems including international dimensions the cases of japan and the netherlands this paper investigates the development and diffusion of photovoltaic pv technology in japan and the netherlands both cases are analysed with the technological innovation systems tis framework which focuses on a particular technology and includes all those factors that influence the development and diffusion of a technology this framework proposes seven system functions key processes that need to be fulfilled for a tis to function well we include international factors in the framework such as import share export activities foreign direct investment and international knowledge exchange japan is found to have a well functioning pv tis with a strong industry and a large market for pv whereas the dutch have so far established considerably less based on the differences in the cases we formulate a number of lessons for the dutch pv tis 1 system functions such as guidance of the search f4 and advocacy coalitions f7 need to be strengthened in order to reinforce each other in a positive way 2 formulate maintain and translate consistent long term goals into long term policies and stimulation measures in order to allow a gradual build up of networks and skills expertise 3 build up and maintain legitimacy within the institutional setting and 4 strengthen the tis in order for the smes to grow in terms of capital and capabilities

biofuels and the role of space in sustainable innovation journeys this paper aims to identify the lessons that should be learnt from how biofuels have been envisioned from the aftermath of the oil shocks of the 1970s to the present and how these visions compare with biofuel production networks emerging in the 2000s working at the interface of sustainable innovation journey research and geographical theories on the spatial unevenness of sustainability transition projects we show how the biofuels controversy is linked to characteristics of globalised industrial agricultural systems the legitimacy problems of biofuels cannot be addressed by sustainability indicators or new technologies alone since they arise from the spatial ordering of biofuel production in the 1970 80s promoters of bioenergy anticipated current concerns about food security implications but envisioned bioenergy production to be territorially embedded at national or local scales where these issues would be managed where the territorial and scalar vision was breached it was to imagine poorer countries exporting higher value biofuel to the north rather than the raw material as in the controversial global biomass commodity chains of today however controversy now extends to the global impacts of national biofuel systems on food security and greenhouse gas emissions and to their local impacts becoming more widely known south south and north north trade conflicts are also emerging as are questions over biodegradable wastes and agricultural residues as global commodities as assumptions of a food versus fuel conflict have come to be challenged legitimacy questions over global agri business and trade are spotlighted even further in this context visions of biofuel development that address these broader issues might be promising these include large scale biomass for fuel models in europe that would transform global trade rules to allow small farmers in the global south to compete and small scale biofuel systems developed to address local energy needs in the south

analyzing the functional dynamics of technological innovation systems a scheme of analysis various researchers and policy analysts have made empirical studies of innovation systems in order to understand their current structure and trace their dynamics however policy makers often experience difficulties in extracting practical guidelines from studies of this kind in this paper we operationalize our previous work on a functional approach to analyzing innovation system dynamics into a practical scheme of analysis for policy makers the scheme is based on previous literature and our own experience in developing and applying functional thinking it can be used by policy makers not only to identify the key policy issues but also to set policy goals

regression toward mediocrity in economic stature this paper provides estimates of the correlation in lifetime earnings between fathers and sons intergenerational data from the national longitudinal survey are used earlier studies conducted for the united states report elasticities of children s earnings with respect to parent s earnings of 0 2 or less suggesting extensive integenerational mobility these estimates however are biased downward by error contaminated measures of lifetime economic status estimates presented in this paper correct for the problem of measurement error and find the intergenerational correlation in income to be on the order of 0 4 this suggests considerably less intergenerational mobility than previously believed jel j62

intergenerational income mobility in the united states social scientists and policy analysts have long expressed concern about the extent of intergenerational income mobility in the united states but remarkably little empirical evidence is available the few existing estimates of the intergenerational correlation in income have been biased downward by measurement error unrepresentative samples or both new estimates based on intergenerational data from the panel study of income dynamics imply that the intergenerational correlation in long run income is at least 0 4 indicating dramatically less mobility than suggested by earlier research copyright 1992 by american economic association

equity and efficiency effects of redistributive policies abstract how do various forms of redistribution affect the distributions of earnings and consumption and their intergenerational mobility do redistributive policies enhance efficiency by mitigating market imperfections or do they create a trade off between equity and efficiency to address these issues a dynamic general equilibrium model is constructed and solved numerically the effects of the degrees of targeting of money transfers and educational transfers and the relative performance of the two types of transfers are examined

random earnings differences lifetime liquidity constraints and altruistic intergenerational transfers abstract this paper develops a model of private savings behavior in which households care about their descendants cannot have negative net worth and have lifetime earnings depending on random draws from an exogenous distribution of abilities the elements interact very lucky parents are likely to leave large estates constrained children are unusually likely to receive intergenerational transfers the paper proves the existence of a stationary cross sectional distribution of wealth endogenously determines where liquidity constraints will bind and shows that the long term interest rate must be such that ricardian neutrality fails its last section generates several illustrative numerical simulations

accounting for the u s earnings and wealth inequality we show that a theory of earnings and wealth inequality based on the optimal choices of ex ante identical households that face uninsured idiosyncratic shocks to their endowments of efficiency labor units accounts for the u s earnings and wealth inequality almost exactly

overcoming barriers to innovation and diffusion of cleaner technologies some features of a sustainable innovation policy regime despite a deepening understanding of systems and processes by which the innovation and diffusion of cleaner technologies occurs relatively little attention has been given to the development of policy processes that reflect this deeper understanding a set of guiding principles for improving sustainable innovation policy processes has been formulated and disseminated by the authors and colleagues in research drawing on theoretical and empirical analysis including a case study of low carbon energy innovation in the uk and interactions with policy makers and other stakeholders through a series of workshops this paper elaborates on two of the guiding principles 1 stimulating the development of a sustainable innovation policy regime bringing together innovation and environmental policy regimes 2 applying systems thinking engaging with the complexity and systemic interactions of innovation systems and policy making processes to promote a transition to sustainability

risk sharing between and within families this paper uses the panel study of income dynamics to test whether risk sharing is complete between or within american families the tests accommodate a wide variety in the configuration and availability of family data the test results reject inter as well as intra family full risk sharing even assuming that leisure is endogenous or that leisure and consumption are nonseparable

internationalization as a strategy to overcome industry barriers an assessment of the marine energy industry abstract research on conditions to develop new innovations within emerging renewable energy industries is often done with a national focus however recent research on international entrepreneurship has revealed that firms operate on international levels very early in their life time thus based on former research on international entrepreneurship and case examples we build the propositions that firms in the marine energy industry use internationalization as a strategy to overcome industry barriers our primary source of data is a unique dataset from a global survey of all the companies in the marine energy industry who are aiming to commercialize a wave or tidal energy device this paper is organized in two steps first we identified the most challenging industry barriers perceived by companies second we use these to form propositions which we assess through empirical data the two most challenging barriers perceived by the companies are need for capital and need for supportive political schemes our findings reveal that internationalization certainly is a common strategy to access capital and attractive support schemes in foreign countries the early internationalization has implications for researchers managers and policy makers

optimal timing of college subsidies enrollment graduation and the skill premium abstract the large increase in the skill premium has led many policy makers to propose increasing college subsidies as a strategy to increase college enrollment and reduce inequality existing analyses typically assume that there is no distinction between enrollment and graduation but in fact more than 50 of college enrollees do not graduate this highlights the need to explicitly model the decision to drop out in assessing the effect of subsidies i build a general equilibrium model of education choice that features an explicit dropout decision calibrate it to match key features of the us economy and use it to evaluate the impact of college subsidies on the supply of college educated labor i show that moving to a system in which subsidies are back loaded i e higher for juniors and seniors than for freshmen and sophomores will increase the supply of college educated labor even holding total subsides constant in fact this effect is larger than what would be accomplished by a uniform 50 increase in subsidies

accounting for the changing role of family income in determining college entry in this paper i analyze the determinants of college enrolment and the changes in these determinants over time i propose a quantitative life cycle model with college enrolment altruistic parents provide financial support to their children using counterfactual experiments i find that 24 percent of all households are financially constrained in their college decision constraints become more severe over time i show that my model is consistent with a narrow college enrolment gap between students from rich and poor families as previously reported in the empirical literature the estimation of enrolment gaps is a popular reduced form approach for measuring the fraction of constrained households my results suggest that these reduced form estimates are misleading and that a structural model of parental transfers is needed to correctly identify constrained households further i show that parental transfers are an important driver behind the changing role of family income as a determinant of college entry a fact that is well documented for the us economy

globalisation of knowledge production and regional innovation policy supporting specialized hubs in the bangalore software industry abstract this paper is concerned with the changing role of regional innovation systems and regional policies in supporting the transition of indigenous firms in developing countries from competing on low costs towards becoming knowledge providers in global value chains special attention is paid to policies supporting the emergence and development of the regional innovation system in this transition process regional innovation systems in developing countries have very recently started to be conceptualised as specialized hubs in global innovation and production networks asheim b coenen l vang lauridsen j 2007 face to face buzz and knowledge bases socio spatial implications for learning innovation and innovation policy environment and planning c government and policy 25 5 655 670 chaminade c vang j 2006a innovation policy for small and medium size smes in asia an innovation systems perspective in yeung h ed handbook of research on asian business edward elgar cheltenham maggi c 2007 the salmon farming and processing cluster in southern chile in pietrobello c rabellotti r eds upgrading and governance in clusters and value chains in latin america harvard university press a specialized hub refers to a node in a global value chain that mainly undertakes one or a few of the activities required for the production and development of a given good or service or serves a particular segment of the global market in global value chains firms in developing countries have traditionally been responsible for the lowest added value activities however a few emerging regional innovation systems in developing countries are beginning to challenge this scenario by rapidly upgrading in the value chain there is however still only a poorly developed understanding of how the system of innovation emerges and evolves to support this transition process and what the role of regional innovation policy is in building the regional conditions that support indigenous small and medium size enterprises smes in this transition process this paper aims at reducing this omission by analyzing the co evolution of the strategies of indigenous smes and the regional innovation system of bangalore india

intergenerational persistence of earnings the role of early and college education recent empirical evidence from the united states indicates a high degree of persistence in earnings across generations designing effective public policies to increase social mobility requires identifying and measuring the major sources of persistence and inequality in earnings we provide a quantitative model of intergenerational human capital transmission that focuses on three sources innate ability early education and college education we find that approximately one half of the intergenerational correlation in earnings is accounted for by parental investment in education in particular early education we show that these results have important implications for education policy

human capital risk and economic growth this paper develops a tractable incomplete markets model of economic growth in which households invest in risk free physical capital and risky human capital the paper shows that a reduction in uninsurable idiosyncratic labor income risk decreases physical capital investment but increases human capital investment growth and welfare a quantitative analysis based on a calibrated version of the model reveals that these effects are substantial and of the same order of magnitude as the effects of distortionary income taxation the analysis further suggests that government sponsored severance payments to displaced workers increase growth and welfare even if these payments have to be e nanced through distortionary income taxation

does school quality matter returns to education and the characteristics of public schools in the united states this paper estimates the effects of school quality measured by the pupil teacher ratio average term length and relative teacher pay on the rate of return to education for men born between 1920 and 1949 using earnings data from the 1980 census we find that men who were educated in states with higher quality schools have a higher return to additional years of schooling rates of return are also higher for individuals from states with better educated teachers and with a higher fraction of female teachers holding constant school quality measures however we find no evidence that parental income or education affects average state level rates of return

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

subsidies hierarchy and peers the awkward economics of higher education higher education is a business it produces and sells educational services to customers for a price and it buys inputs with which to make that product production is subject to technological constraints costs and revenues discipline decisions and determine the long run viability of a college or university but higher education is not just a business while that statement is often meant to imply that higher education is nobler than business more decent and humane in the purposes it serves it can also mean that even in economic terms higher education is in important ways simply different from a business this paper asks how well our extensive experience with commercial businesses and the microeconomic theory of firms and markets that has evolved to describe them helps in understanding the economics of higher education that experience and those insights will be used by trustees politicians administrators lawyers reporters and the public as well as by economists to understand and evaluate the behavior of colleges and universities so it is useful to ask how safe it is to use the economic analogy in the context of higher education drawing parallels between universities and firms students and customers faculty and labor markets and so on the discussion here seeks to identify the key economic features of higher education that make it different from familiar for profit industries and to ask what difference those differences make this is a stick that can be picked up from either end one approach is to start with meticulous economic theory and see how far it can be made to encompass the economic realities of higher education an excellent recent paper by rothschild and white 1995 does that in their matching model students and colleges meet

doha merchandise trade reform what is at stake for developing countries this paper provides new estimates of the global gains from multilateral trade reform and their distribution among developing countries in the presence of trade preferences particular attention is given to agriculture as farmers constitute the poorest households in developing countries but are the most assisted in rich countries the latest gtap database version 6 05 and the linkage model of the global economy are used to examine the impact first of current merchandise trade barriers and agricultural subsidies and then of possible reform outcomes from the wto s doha development agenda the results suggest moving to free global merchandise trade would boost real incomes in sub saharan africa proportionately more than in other developing countries or high income countries despite a terms of trade loss in parts of that region net farm incomes would rise substantially in that and other developing country regions thereby alleviating rural poverty a doha partial liberalization could move the world some way toward those desirable outcomes but more so the more developing countries themselves cut applied tariffs particularly on agricultural imports

tax and education policy in a heterogeneous agent economy what levels of redistribution maximize growth and efficiency this paper studies the effects of progressive income taxes and education finance in a dynamic heterogeneous agent economy such redistributive policies entail distortions to labor supply and savings but also serve as partial substitutes for missing credit and insurance markets the resulting tradeoffs for growth and efficiency are explored both theoretically and quantitatively in a model that yields complete analytical solutions progressive education finance always leads to higher income growth than taxes and transfers but at the cost of lower insurance overall efficiency is assessed using a new measure that properly reflects aggregate resources and idiosyncratic risks but unlike a standard social welfare function does not reward equality per se simulations using empirical parameter estimates show that the efficiency costs and benefits of redistribution are generally of the same order of magnitude resulting in plausible values for the optimal rates aggregate income and aggregate welfare provide only crude lower and upper bounds around the true efficiency tradeoff

the critical role of informed political direction for advancing technology the case of swedish marine energy marine energy technologies can contribute to meeting sustainability challenges but they are still immature and dependent on public support this paper employs the technological innovation systems tis framework to analyze the development and diffusion of swedish marine energy up until 2014 while there were promising device developers relevant industrial capabilities and world class research the system suffered from weaknesses in several important innovation processes finally the analysis identifies the lack of informed political direction as a critical blocking factor and highlights its connection to domestic market potential

default risk and private student loans implications for higher education policies abstract in recent years the proportion of students facing a binding constraint on government student loans has grown this has led to substantially increased use of private loans as a supplementary source of finance for households higher education investment a critical aspect of the private market for student loans is that loan terms must reflect students risk of default college investment will therefore differ from a world in which government student loans whose terms are not sensitive to credit risk are expanded to no longer bind moreover beyond simply crowding out private lending expansions of the government student loan program will feed back into default risk on private loans the goal of this paper is to provide a quantitative assessment of the likely effects of the private market for student loans on college enrollment we build a model of college investment that reflects uninsured idiosyncratic risk and a well defined life cycle that is consistent with observed borrowing and default behavior across family income and college preparedness we find that higher government borrowing limits increase college investment but lead to more default in the private market for student loans while tuition subsides increase college investment and reduce default rates in the private market consequently higher limits on government student loans have small negative welfare effects while tuition subsidies increase aggregate welfare

risky higher education and subsidies abstract tertiary education in the u s requires large investments that are risky lumpy and well timed tertiary education is also heavily subsidized our model suggests that despite adverse selection arising from encouraging poorly prepared students to enroll observed collegiate subsidies improve outcomes substantially relative to the fully decentralized case this result occurs because increases in subsidy rates for college education generate reductions in college failure risk without altering mean returns we find that this mechanism is robust and that tertiary subsidy rates well in excess of those observed in the u s can be justified by failure risk alone

from lagging to leading technological innovation systems in emerging economies and the case of chinese wind power there is increasing attention for the contribution of emerging economies to global innovation including innovation of renewable energy technologies the technological innovation systems tis framework presents a list of system functions for the analysis of the development of a technology it has often been applied to renewable energy technologies but with a strong focus on advanced economies in this paper we elaborate on emerging economy innovation system formation structured according to tis functions rather than analysing development of the technology we analyse the development of the chinese tis vis a vis the global forefront key to this notion is that tis especially for clean tech are transnational phenomena lagging tis depend on the global tis whereas leading tis contribute to its formation it is concluded that china has reduced its dependence on foreign knowledge and investment but the outward contribution remains limited the main challenge to foreign market expansion lies in reforming the domestic tis to focus on turbine quality rather than cost reduction demonstration projects are needed especially for large capacity and offshore turbine models in order to build up operational history and get quality certification

comparing the innovation effects of support schemes for renewable electricity technologies a function of innovation approach abstract the aim of this paper is to provide a comparative assessment of the innovation effects of instruments which support the diffusion of renewable electricity technologies with a functions oriented technological innovation system perspective the paper provides a link between two major streams of the literature the functions of innovation systems and the literature on renewable electricity support schemes we show that when a functional perspective is adopted feed in tariffs are likely to be superior to other policy instruments quotas with tradable green certificates and tendering although they still need to be complemented with other instruments most importantly direct r d support furthermore those innovation effects are affected by the specific design elements of the instruments chosen

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

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

a simple test of consumption insurance are consumers effectively insured against idiosyncratic shocks to income or wealth either by formal institutions such as charities private insurance and government programs or by informal mechanisms such as gifts and loans from relatives friends and neighbors under full insurance consumption growth should be cross sectionally independent of idiosyncratic variables that are exogenous to consumers this proposition is tested by cross sectional regressions of consumption growth on a variety of exogenous variables full insurance is rejected for long illness and involuntary job loss but not for spells of unemployment loss of work due to strike and an involuntary move

technology transfer and spillovers does local participation with multinationals matter this paper examines the effects on technology transfer and spillovers deriving from ownership sharing of foreign multinational affiliates more specifically we try to answer two questions using unpublished indonesian micro data firstly do establishments with minority and majority ownership differ in terms of productivity levels secondly does the degree of spillover differ with the degree of ownership in the fdi our results show that foreign establishments have comparable high levels of labor productivity and that domestic establishments benefit from spillovers however the degree of foreign ownership does neither affect the level of labor productivity in foreign establishments nor the degree of spillovers

economic underdevelopment the case of a missing market for human capital abstract this paper demonstrates that the coexistence of developed and underdeveloped countries can be a stationary equilibrium in a world economy with free trade in consumption goods and physical capital an underdeveloped country is characterized by a high ratio of unskilled workers in the labor force a small stock of physical capital a low gross national product a high rate of return on human capital and a corresponding large wage differential between skilled and unskilled workers the critical assumptions are that future labor earnings cannot serve as collateral on a loan and indivisibilities in education

the family inheritance and the intergenerational transmission of inequality unequal inheritance of material wealth is commonly considered a major cause of inequality in consumption however theoretical models of the intergenerational transmission of inequality by becker blinder and ishikawa imply that unequal inheritance may either increase or reduce consumption inequality differences in inherited wealth resulting from unequal parental incomes increase inequality in recipients consumption however unequal bequests caused by differences among families in the endowed ability of children or the costs of producing human capital are equalizing empirical results confirm these predictions the inheritance received by children is inversely related to both children s income and parental education thus bequests are compensatory in that ceteris paribus low income children inherit more than their advantaged contemporaries

optimal wage and income taxation with wage uncertainty optimal taxation in a two period model with human capital investment and second period wage uncertainty is analyzed a proportional tax on wages dominates lump sum taxation and the socially optimal level of human capital exceeds that which individuals choose a tax on interest income may raise welfare by encouraging investment in human capital the interest income tax reduces the difference between returns to physical and human capital from individuals inability to reduce human capital risk through diversification a positive interest income tax rate may therefore be optimal even with an optimal wage tax by encouraging m ore investment in human capital copyright 1987 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

innovation system strengths and weaknesses in progressing sustainable technology the case of swedish biorefinery development based on the combination of economic challenges and uncertain policy conditions in the united states european union and elsewhere the development of advanced biorefineries has progressed slower than anticipated this has delayed the transition to a more sustainable and less carbon intensive economy in this article we adopt the technological innovation system tis approach to analyze advanced biorefinery development in sweden a front runner country in current development the analysis highlights a number of system strengths e g long term research funding significant research infrastructure strong actor networks that have contributed to developing the swedish tis but also important system weaknesses e g weak coordination among ministries lack of industrial absorptive capacity unclear roles inhibiting it the article highlights a combination of four policy measures that build on the system strengths to address the system weaknesses a the implementation of a deployment policy for creating domestic niche markets b improved policy timing and more structured coordination among different governmental agencies c the provision of stronger incentives for mature industries to invest in rd and d improved organization and financing of existing research infrastructure in addition to the empirical contribution the article contributes with novel insights into the tis framework by highlighting the dynamics between system strengths and weaknesses and suggests that system strengths should be better emphasized in future tis studies

carbon market risks and rewards firm perceptions of cdm investment decisions in brazil and india the carbon market experiences of brazil and india represent policy success stories under several criteria a careful evaluation however reveals challenges to market development that should be addressed in order to make the rollout of a post 2012 cdm more effective we conducted firm level interviews covering 82 cdm plants in the sugar and cement sectors in brazil and india focusing on how individual managers understood the potential benefits and risks of undertaking clean development mechanism cdm investments our results indicate that the cdm operates in a far more complex way in practice than that of simply adding a marginal increment to a project s internal rate of return our results indicate the following first although anticipated revenue played a central role in most managers decisions to pursue cdm investments there was no standard practice to account for financial benefits of cdm investments second some managers identified non financial reputational factors as their primary motivation for pursuing cdm projects and third under fluctuating regulatory regimes with real immediate costs and uncertain cdm revenue managers favored projects that often did not require carbon revenue to be viable the post 2012 cdm architecture can benefit from incorporating these insights and in particular reassess goals for strict additionality and mechanisms for achieving it

contracting for tacit knowledge the provision of technical services in technology licensing contracts abstract recent research on the economic payoff from new technology has emphasized the importance of tacit knowledge or know how this paper shows that arm s length contract can overcome the problems in contracting for know how by bundling complementary inputs with know how in a technology package and leveraging the superior enforceability of contracts over the latter in the empirical part of this paper the relationship between bundling and transfer of know how is analyzed using indian data the results imply that tied sales of inputs may increase the efficiency of contracts involving the transfer of know how a striking result in the context of the current north south debates on intellectual property rights is the packaging of patents with know how

the risk free rate in heterogeneous agent incomplete insurance economies abstract why has the average real risk free interest rate been less than one percent the question is motivated by the failure of a class of calibrated representative agent economies to explain the average return to equity and risk free debt i construct an economy where agents experience uninsurable idiosyncratic endowment shocks and smooth consumption by holding a risk free asset i calibrate the economy and characterize equilibria computationally with a borrowing constraint of one year s income the resulting risk free rate is more than one percent below the rate in the comparable representative agent economy

international bioenergy trade a review of past developments in the liquid biofuel market policies aimed to promote biofuels locally had tremendous effects on global market developments across the past decade this article develops insights into the interaction of these policies and market forces via a comprehensive collection and analysis of international production and trade data it shows that world biofuel production and trade has grown exponentially from below 30 pj in 2000 to 572 pj in 2009 for biodiesel from 340 pj in 2000 to over 1540 pj in 2009 for fuel ethanol the eu has dominated world biodiesel whereas the us and brazil have led fuel ethanol production world net biofuel trade reached 120 130 pj in 2009 and was directed towards the most lucrative markets for biodiesel this has been the eu whose imports rose to 92 pj in 2008 and remained at 70 pj in 2009 regarding fuel ethanol both the us and the eu have been prime destinations for competitively priced exports the vast majority of which originated in brazil international biofuel trade is both supply and demand driven the demand side was shaped by support policies which generally increased the domestic market value of biofuels trade developed wherever these policies prices were not accompanied by respective measures it is found that import duties largely influenced trade volumes whereas trade routes were mainly driven by tariff preferences trade regimes appear to have been designed and adapted unilaterally along national interests causing market disruptions trade inefficiencies and disputes to avoid these it is important to explicitly consider international trade implications of national trade policies a prerequisite is to improve the understanding of the underlying complex and interwoven links within the market the current lack of adequate homogeneous international reporting of biofuel production and trade statistics could be bridged via internationally standardized custom clarifications trade factor interrelations also need to be investigated further

estimating the variance of wages in the presence of selection and unobserved heterogeneity abstract identification of potential wage distributions by education is important to the study of the causal links between education inequality and uncertainty potential wage inequality within an educational group that is the variance in wages if all workers had the same education exceeds the observed statistics because self selected education truncates wage distributions decomposing potential wage inequality into heterogeneity known to the agent making the educational choice and uncertainty unknown to the agent suggests that wage uncertainty does not necessarily rise with education it is unobserved heterogeneity not uncertainty that explains the observed relationship between college graduation and higher wage inequality

fostering a renewable energy technology industry an international comparison of wind industry policy support mechanisms this article examines the importance of national and sub national policies in supporting the development of successful global wind turbine manufacturing companies we explore the motivations behind establishing a local wind power industry and the paths that different countries have taken to develop indigenous large wind turbine manufacturing industries within their borders this is done through a cross country comparison of the policy support mechanisms that have been employed to directly and indirectly promote wind technology manufacturing in 12 countries we find that in many instances there is a clear relationship between a manufacturer s success in its home country market and its eventual success in the global wind power market whether new wind turbine manufacturing entrants are able to succeed will likely depend in part on the utilization of their turbines in their own domestic market which in turn will be influenced by the annual size and stability of that market consequently policies that support a sizable stable market for wind power in conjunction with policies that specifically provide incentives for wind power technology to be manufactured locally are most likely to result in the establishment of an internationally competitive wind industry

the demand for and return to education when education outcomes are uncertain this article treats education as a sequential choice that is made under uncertainty a simple model is used to explore the effects of ability high school preparation preferences for schooling the borrowing rate and ex post payoffs to college on the probability of various post secondary college outcomes and the ex ante return to starting college the model motivates an empirical method of accounting for uncertainty about educational outcomes and for nonlinearity in the relationship between years of education and earnings when estimating the expected return to the first year of college

wage structure as implicit insurance on human capital in developed versus underdeveloped countries abstract this paper explores the role of wage structure as implicit insurance on human capital it illustrates how smaller wage differentials in the developed world can be welfare enhancing by acting as implicit insurance while larger wage differentials in underdeveloped countries make investments in human capital riskier in other words with smaller wage differentials the students in a developed country are insured against poor educational outcomes through the existence of well paid alternative employments which are not present in the economy of a less developed country this result arises as multiple equilibria in a general equilibrium model when there are no insurance markets for human capital

risk bearing and the theory of income distribution this paper develops the stochastic theory of distribution with a dynamic model which focuses on the role of incomplete insurance in generating inequality unlike previous work our approach takes explicit account of the reason for market incompleteness in modeling agents behaviour in particular the amount of risk borne is endogenous using a model of growth with altruism in which agents are risk averse and there is moral hazard we show that lineage wealth follows a markov process which converges globally to an ergodic distribution this also represents the long run population distribution of wealth we discuss the role of particular assumptions such as availability of production loans and unboundedness of utility in yielding the qualitative properties of the distribution of wealth the choice of occupation and the prevention of poverty traps