crisis or opportunity economic degrowth for social equity and ecological sustainability introduction to this special issue abstract this article reviews the burgeoning emerging literature on sustainable degrowth this is defined as an equitable downscaling of production and consumption that increases human well being and enhances ecological conditions at the local and global level in the short and long term the paradigmatic propositions of degrowth are that economic growth is not sustainable and that human progress without economic growth is possible degrowth proponents come from diverse origins some are critics of market globalization new technologies or the imposition of western models of development in the rest of the world all criticize gdp accounting though they propose often different social and ecological indicators degrowth theorists and practitioners support an extension of human relations instead of market relations demand a deepening of democracy defend ecosystems and propose a more equal distribution of wealth we distinguish between depression i e unplanned degrowth within a growth regime and sustainable degrowth a voluntary smooth and equitable transition to a regime of lower production and consumption the question we ask is how positive would degrowth be if instead of being imposed by an economic crisis it would actually be a democratic collective decision a project with the ambition of getting closer to ecological sustainability and socio environmental justice worldwide most articles in this issue were originally presented at the april 2008 conference in paris on economic degrowth for ecological sustainability and social equity this conference brought the word degrowth and the concepts around it into an international academic setting articles of this special issue are summarized in this introductory article hueting d alessandro and colleagues van den bergh kerschner spangenberg and alcott discuss whether current growth patterns are un sustainable and offer different perspectives on what degrowth might mean and whether and under what conditions it might be desirable matthey and hamilton focus on social dynamics and the obstacles and opportunities for voluntary social action towards degrowth lietaert and cattaneo with gavalda offer a down to earth empirical discussion of two practical living experiments cohousing and squats highlighting the obstacles for scaling up such alternatives finally van griethuysen explains why growth is an imperative in modern market economies raising also the question whether degrowth is possible without radical institutional changes

the proximity of nations to a socially sustainable steady state economy abstract there has been increasing interest in new economic models that aim to improve quality of life without increasing consumption this article provides the first empirical analysis of how close modern day economies are to the concept of a steady state economy and explores whether there is any relationship between a country s proximity to such an economy and its social performance the analysis is carried out using the degrowth accounts a set of 16 biophysical and social indicators that are derived from herman daly s definition of a steady state economy and the social goals of the degrowth movement these indicators are applied to 180 countries over a 10 year period the analysis reveals that the majority of countries in the world are biophysical growth economies there are only a small number of countries where resource use is relatively constant from year to year e g denmark france japan poland romania and the us and only four countries experiencing biophysical degrowth germany guyana moldova and zimbabwe there are no countries that achieve a true steady state economy defined as an economy with a stable level of resource use maintained within ecological limits however a few countries come relatively close including colombia cuba kyrgyzstan romania and south africa in general countries with stable resource use perform better on many social indicators than countries with either increasing or decreasing resource use this finding runs contrary to conventional economic thought however social performance is also higher in countries with greater per capita resource use overall these findings suggest that a steady state economy can be socially sustainable but countries need to become much more efficient at transforming natural resources into human well being if all seven billion people on earth are to lead a good life within ecological limits

gender inequality and economic development fertility education and norms we document the evolution of gender inequality in labour market outcomes earnings labour supply and wage rates over the path of economic development and present evidence on the potential reasons for this evolution to this end we have created a micro database that compiles 248 surveys from 53 countries between 1967 and 2014 covering a wide range of per capita income levels there is large convergence in the earnings of men and women over the path of development driven by female labour force participation and wage rates we argue that the single most important factor behind this convergence is demographic transition the effects of children on gender gaps child penalties are large at both low and high levels of development but fertility declines drastically over the growth process and thus reduces the aggregate implications of children we also document gender convergence in educational attainment and consider its effects on earnings inequality arguing that these are significant but less dramatic than the effects of fertility finally we document striking changes in the values or norms surrounding the role of women with children implying that such changes could serve as a reinforcing mechanism for gender convergence

institutions governance and incentives in common property regimes for african rangelands the general distinctions between open access state property common property and private property are now well established in the academic literature when applied to african rangelands however common property admits a wide variety of resource management regimes to formulate effective policies it is necessary to understand the structure and operations of particular regimes in this paper we discuss three examples of common property regimes two from the southern african nation of lesotho and one from the west african nation of senegal to illustrate some of the key characteristics of common property regimes in particular it is important to understand the structure of governance the types of institutions that govern behavior and the compatibility between governance institutions and individual incentives a common property regime can only be effective if its institutions are compatible with the structure of governance the extent of its effectiveness also depends upon the incentives and expectations of individuals expected to enforce the rules of the institutions or comply with their terms at present most african governments lack the organizational capacity and political will necessary to implement state property regimes official regulations on resource use or individual property rights for rangelands resources in many cases it is more appropriate for governments to define and enforce group rights to particular resources then help to establish conditions in which internal group dynamics yield efficient resource management outcomes

parenthood and the gender gap in pay we compare the income and wage trajectories of women to those of their male partners before and after parenthood focusing on the within couple gap allows us to control for both observed and unobserved attributes of the spouse and to estimate both short and long term effects of entering parenthood we find that 15 years after the first child has been born the male female gender gaps in income and wages have increased by 32 and 10 percentage points respectively in line with a collective labor supply model the magnitude of these effects depends on counterfactual relative incomes or wages within the family

the gender gap fertility and growth changes in fertility have long been recognized as important correlates of economic growth with the relationship between the level of fertility and the level of income per capita being one of the strongest observable correlations in cross country data this paper examines the linkages between fertility and growth theory the structure of the model is presented in sections on production couples decision making system dynamics and steady state equilibria the first component of the model is that increases in capital per worker raise womens relative wages since capital is more complementary to womens labor input than to mens the second component is that increasing womens relative wages reduces fertility by raising the cost of children more than household income finally lower fertility raises the level of capital per worker a positive feedback loop generates demographic transition a rapid decline in fertility accompanied by accelerated output growth

spatial sustainability trade and indicators an evaluation of the ecological footprint the search for frameworks and indicators of sustainable development has taken a prominent place in this journal however some specific aspects have received little or no attention notably the spatial dimension and the role of international trade in indicator development moreover many sustainable development indicators comprise implicit valuations weighting schemes and policy objectives which are insufficiently recognised as such this contribution tries to highlight these issues by means of a review of a recently proposed indicator for ecological economic analysis namely the ecological footprint that has been developed by wackernagel and rees its concept and calculation procedure are criticised on a number of points and it is concluded that the ecological footprint is not the comprehensive and transparent planning tool as is often assumed in explaining our position we will argue that spatial sustainability and regional sustainable development have not been precisely discussed so far neither in the literature on trade and environment nor in that on sustainable development we will defend the view that trade can contribute positively and negatively to environmental unsustainability consequently indicators and models are needed that allow for analysing interactions and trade offs between such opposite effects 1999 elsevier science b v all rights reserved

optimal growth resource amenities and the preservation of natural environments this paper examines the conditions for which it is optimal to permanently preserve natural environments in which a productive natural resource is found the conditions are more restrictive than those previously indicated in the literature on the economics of natural environments increasing consumption and declining commodity prices are not sufficient to warrant permanent preservation the initial capital stock can be an important determinant of the optimal level of preservation in addition resource amenity values will increase the initial resource price and decrease the rate of growth of the resource price the natural world provides a variety of services to the human community natural resources are essential inputs in the production of goods and services in addition the natural world generates a variety of amenity services including the scientific recreational and aesthetic value of preserved natural environments krutilla 1967 krutilla and fisher 1975a this paper examines the impact of resource amenity values on the optimal growth of an economy which depends upon natural resource inputs for the production of goods and services in particular the paper examines the conditions under which it is optimal to permanently preserve some natural environments in which the productive resource is found the conditions which warrant permanent preservation are more restrictive than previously indicated by the literature on the economics of natural environments increasing consumption and declining commodity prices are not sufficient to warrant permanent preservation in addition the initial capital endowment can be an important determinant of the optimal level of preservation

understanding the family gap in pay for women with children as the gender gap in pay between women and men has been narrowing the family gap in pay between mothers and nonmothers has been widening one reason may be the institutional structure in the united states which has emphasized equal pay and opportunity policies but not family policies in contrast to other countries that have implemented both the authors now have evidence on the links between one such family policy and women s pay recent research suggests that maternity leave coverage by raising women s retention after childbirth also raises women s levels of work experience job tenure and pay

the career costs of children this paper analyzes the life cycle career costs associated with child rearing and decomposes their eects into unearned wages as women drop out of the labor market loss of human capital and selection into more child friendly occupations we estimate a dynamic life cycle model of fertility occupational choice and labor supply using detailed survey and administrative data for germany for numerous birth cohorts across dierent regions we use this model to analyze both the male female wage gap as it evolves from labor market entry onward and the eect of pro fertility policies we show that a substantial portion of the gender wage gap is explainable by realized and expected fertility and that the long run eect of policies encouraging fertility are considerably lower than the short run eects typically estimated in the literature

sustainable development and a dwindling carbon space curbing global warming by setting long term maxima for temperature rise or concentrations of greenhouse gases defines spaces within which further emissions of these gases are to remain referred to here as carbon spaces this paper addresses questions related to how to share between countries the carbon space and or efforts to stay within it in the perspective of sustainable development different allocation mechanisms are reviewed responding to criteria such as responsibility for climate change capability to engage in abating it and potential or future contribution the carbon space remaining at any time will depend on effective mitigation up till that time and will condense if more stringent maxima are to be set per capita this space becomes smaller with rising population sharing the carbon space in a fair way requires convergence of currently widely unequal per capita emissions if the world is to stay within the carbon space consistent with 2 warming then developed economies the wealthiest sources of greenhouse gases should quickly and deeply engage in mitigation also substantial mitigation is to take place in developing countries and that this will require substantial support to developing countries financially technologically changing development paths can make a major contribution to climate change mitigation this requires changes in investment production and consumption patterns green new deals as proposed in the context of a widened response to the current economic crisis could become a first phase of a fundamental transition towards a decarbonised global economy worldwide concerns to do with equity as well as sustainability must be incorporated and integrated into coherent transitory strategies

traditional production communal land tenure and policies for environmental preservation in the south pacific abstract instead of maximizing the expected monetary return of land usage pacific islanders manage land so that it renders an optimal mix of cash income and non monetary cultural goods evidence from cropping patterns in fiji suggests that the production of these cultural goods is linked to traditional agriculture which produces less ecological deterioration than its commercial counterpart the capacity for village land to support traditional activities is highest under a regime of communal land tenure where decision making is centralized a regime of private land tenure lowers this capacity because decentralized decision making raises the coordination costs of preserving special areas of land for traditional purposes this means that if development planners rush to replace traditional regimes of communal land tenure with modern systems of private land ownership they might also observe a correlated increase in land degradation even if new codes of private property are perfectly enforceable a two sector growth model can be used to show that the welfare neutral bribe required from the government to increase the amount of village land preserved in the steady state is lower under a regime of communal land tenure one counterintuitive result is that a high subjective discount rate does not always imply a high level of environmental degradation observations from the south pacific have application for environmental policy in other developing countries

measuring progress in the degrowth transition to a steady state economy article i nfo in order to determine whether degrowth is occurring or how close national economies are to the concept of a steady state economy clear indicators are required within this paper i analyse four indicator approaches that could be used 1 gross domestic product 2 the index of sustainable economic welfare 3 biophysical and social indicators and 4 a composite indicator i conclude that separate biophysical and social indicators represent the best approach but a unifying conceptual framework is required to choose appropriate indicators and interpret the relationships between them i propose a framework based on ends and means and a set of biophysical and social indicators within this framework the biophysical indicators are derived from herman daly s definition of a steady state economy and measure the major stocks and flows in the economy environment system the social indicators are based on the stated goals of the degrowth

should degrowth embrace the job guarantee degrowth should consider the right to work a job guarantee jg as a way of making a smaller economy more just and socially sustainable economic shrinkage in richer countries is accompanied by increased unemployment a bad enough problem in itself but also a barrier to voters acceptance of the degrowth path since being out of work is distinct from being poor anti poverty income policies should be approached separately the jg is one of several paths to full employment including reduced working time this essay only briefly mentions some real world jg programs and some technical objections the main suggestion is to move employment from being a matter of economics particularly economic growth to being a political right a right to work is necessarily effective and would avoid sacrificing the ecological and social goals of degrowth on the altar of full employment

toward consilience between biology and economics the contribution of ecological economics abstract during its ten year history ecological economics has made a real difference in the way economists look at the natural world and in the way biologists look at the economy in this survey article we examine the contributions to the journal in terms of e o wilson s concept of consilience that is his argument that the methods and assumptions of any field of study should be consistent with the known and accepted facts in other disciplines in particular we examine the contributions of ecological economics to reconciling the economic theory of the consumer and producer with biophysical reality

in defence of degrowth abstract this article defends the proposal of sustainable degrowth a starting premise is that resource and co2 limits render further growth of the economy unsustainable if degrowth is inevitable the question is how it can become socially sustainable i e a prosperous and stable rather than a catastrophic descent pricing mechanisms alone are unlikely to secure smooth adaptation a full ensemble of environmental and redistributive policies is required including among others policies for a basic income reduction of working hours environmental and consumption taxes and controls on advertising policies like these that threaten to harm the economy are less and less likely to be implemented within existing market economies whose basic institutions financial property political and redistributive depend on and mandate continuous economic growth an intertwined cultural and political change is needed that will embrace degrowth as a positive social development and reform those institutions that make growth an imperative sustainable degrowth is therefore not just a structuring concept it is a radical political project that offers a new story and a rallying slogan for a social coalition built around the aspiration to construct a society that lives better with less

the economics of degrowth economic degrowth is ecologically desirable and possibly inevitable but under what conditions can it become socially sustainable how can we have full employment and economic stability without growth what will happen to public spending and to public debt how would production be organised in a degrowing economy and under what plausible socio political conditions could such grand changes happen standard economic theories and models ignore these questions for them economic growth is an axiomatic necessity this article reviews recent contributions in the economics of degrowth and identifies research avenues for ecological economists

women s career choices social norms and child care policies our model explains the observed gender specific patterns of career and child care choices through endogenous social norms we study how these norms interact with the gender wage gap we show that via the social norm a couple s child care and career choices impose an externality on other couples so that the laissez faire is inefficient we use our model to study the design and effectiveness of three commonly used policies we find that child care subsidies and women quotas can be effective tools to mitigate or eliminate the externality parental leave however may even intensify the externality and decrease welfare

growth in global materials use gdp and population during the 20th century the growing industrial metabolism is a major driver of global environmental change we present an assessment of the global use of materials since the beginning of the 20th century based on the conceptual and methodological principles of material flow accounting mfa on the grounds of published statistical data data compilations and estimation procedures for material flows not covered by international statistical sources we compiled a quantitative estimate of annual global extraction of biomass fossil energy carriers metal ores industrial minerals and construction minerals for the period 1900 to 2005 this period covers important phases of global industrialisation and economic growth the paper analyses the observed changes in the overall size and composition of global material flows in relation to the global economy population growth and primary energy consumption we show that during the last century global materials use increased 8 fold humanity currently uses almost 60 billion tons gt of materials per year in particular the period after wwii was characterized by rapid physical growth driven by both population and economic growth within this period there was a shift from the dominance of renewable biomass towards mineral materials materials use increased at a slower pace than the global economy but faster than world population as a consequence material intensity i e the amount of materials required per unit of gdp declined while materials use per capita doubled from 4 6 to 10 3 t cap yr the main material groups show different trajectories while biomass use hardly keeps up with population growth the mineral fractions grow at a rapid pace we show that increases in material productivity are mostly due to the slow growth of biomass use while they are much less pronounced for the mineral fractions so far there is no evidence that growth of global materials use is slowing down or might eventually decline and our results indicate that an increase in material productivity is a general feature of economic development

symposium on management of local commons in the public image of industrially advanced countries the commons problem relates to global warming acid rain depletion of the ozone layer and the like in the developing countries the daily livelihood of the poor depends more substantially and directly on the local commons irrigation forestry grazing in shore fisheries and so on these restricted access common property resources usually involve small local communities which opens the possibility for local level community organizations to manage resources and resolve conflicts as an alternative to the polar opposites of private and state control which usually hog the limelight in public policy discussion in fact many developing countries have a long history of balanced resource management under highly informal local community institutions in these countries the erosion of the local commons set in only with major demographic and institutional changes in recent years often accelerated by private commercialization or bureaucratic appropriation of the traditional historical rights of local communities over these resources

degrowth taking stock and reviewing an emerging academic paradigm degrowth has evolved within a decade from an activist movement into a multi disciplinary academic paradigm however an overview taking stock of the peer refereed degrowth literature is yet missing here we review 91 articles that were published between 2006 and 2015 we find that the academic degrowth discourse occupies a small but expanding niche at the intersection of social and applied environmental sciences the discourse is shaped by authors from high income mainly mediterranean countries until 2012 articles largely constitute conceptual essays endorsed by normative claims more recently degrowth has branched out into modelling empirical assessments and the study of concrete implementations authors tend to agree in that economic growth cannot be sustained ad infinitum on a resource constraint planet and that degrowth requires far reaching societal change whether degrowth should be considered as a collectively consented choice or an environmentally imposed inevitability constitutes a major debate among degrowth thinkers we argue that the academic discourse could benefit from rigid hypotheses testing through input output modelling material flow analysis life cycle assessments or social surveys by analyzing the potentials for non market value creation and identifying concrete well being benefits the degrowth discourse could receive wider public support and contribute to a paradigmatic change in the social sciences

happy degrowth through more amateur economy abstract this paper outlines a simple aggregate descriptive model of what is here termed a whole economy covering all human involvement in the economy from ultimate means or ecological sacrifices to the ultimate ends of human satisfaction the model embraces not only the formal professional economy driven by money but also the parallel non paid voluntary economy here termed amateur economy driven by peoples affective motivations the input of work to the economy plays an essential role in the paper s analysis of options for reducing ecological sacrifices hence part of the paper is devoted to a brief historical overview of the role of work including turning points in the 1930s in the united states when work sharing was displaced by work creation through consumerism and in the post war economy when gdp became the dominant economic indicator the paper proposes the aim of a happy and sustainable degrowth for affluent countries implying the transfer of some activities from the professional economy to the less labor productive amateur economy this will tend to reduce overall labor productivity and hence resource throughput but increase satisfaction and happiness a key element in the analysis is combining a reduction in consumption with a reduction in production which is obtainable through lowering either working time or work productivity and turning some of the leisure time into voluntary activities economic growth is not a law of nature but the consequence of explicit political decisions taken hence growth is also open to new political decisions in recognition of physical limits to growth and the human quest for replacing economic growth with life satisfaction including increased free time

common property and collective action in economic development abstract a fundamental issue in many ldcs is the degree to which natural resource mismanagement is caused by common property arrangements this view has led to widespread attempts to privatize forests rangelands and water resources many of these efforts have failed to stop overuse and have contributed to inequality in resource distribution this paper seriously questions this approach and describes a number of reasons why common property may continue to be both efficient and equitable complementing and combining with private rights in a way consistent with the resource endowments of village economies a theoretical approach is outlined showing that the tragedy of the commons is an unsatisfactory model of common property an alternative model is presented together with a call for research into institutional alternatives in resource management

sustainable development in pacific micro economies abstract this paper argues that the central economic problem for a number of very small pacific island economies is the preservation and enhancement of their status as rentier societies and the relatively high living standards vis a vis other developing countries which go with the status the thrust of most development planning in the region with its focus on sustainable expansion of productive activity is misdirected in these small countries it is not productive activity but rent entitlements which must be sustained and reproduced over time aid philately and migrant remittances are not merely supplements to local incomes they are the foundations of the modern economy insofar as conventional development projects crowd out aid and remittance entitlements their impact is immiserizing criticism is offered of a recent argument for returning to sustainable subsistence economies

mothers and sons preference formation and female labor force dynamics this paper argues that the growing presence of a new type of man one brought up in a family in which the mother worked has been a significant factor in the increase in female labor force participation over time we present cross sectional evidence showing that the wives of men whose mothers worked are themselves significantly more likely to work we use variation in the importance of world war ii as a shock to women s labor force participation as proxied by variation in the male draft rate across u s states to provide evidence in support of the intergenerational consequences of our propagation mechanism

the effect of the discount rate on depletion of exhaustible resources this paper argues that despite its widespread acceptance in the literature the basic proposition that a reduction an increase in the discount rate leads to greater conservation faster depletion of an exhaustible resource is not generally valid it shows that the effect of the discount rate on the rate of resource depletion depends on capital requirements for production of the substitute and extraction of the resource and on the size of the resource stock in fact it shows that there always exist at least two ranges of the resource stock size for which the effect is opposite to that conventionally believed

women in top incomes evidence from sweden 1971 2017 abstract using yearly register data on the full population of sweden we study gender differences in top incomes down to the top 0 01 percentile group over the period 1971 2017 we find that while women are still a minority of the top decile and typically make up a smaller share the higher up in the distribution we move their presence has steadily increased in all top groups over the past half century at the beginning of the period top income women relied more on capital incomes but the rise in the share of top women is not due to the growing importance of capital instead women have increased their presence in the top by gains in the top of labour incomes while top income men have captured most of the growth in capital incomes studying gender differences in observable characteristics we find small gender differences in some respects convergence in others but also some important remaining differences overall our results suggest that many findings in the top income literature have a clear gender component and that understanding gender equality in the top of the distribution requires studying not only earnings and labour market outcomes but also incomes from other sources as well as family circumstances

less is more the influence of aspirations and priming on well being abstract if resource consumption is to be reduced through economic de growth individuals in industrialized countries may have to accept a reduction in their consumption levels in democratic societies implementing this process requires the consent of a majority of the population however as long as people have high reference levels of consumption lower consumption will induce feelings of loss and hence evoke resistance this paper summarizes recent experimental evidence on some of the factors that determine the utility costs involved in decreasing consumption the results suggest that the acceptance of economic de growth would be facilitated if people s material aspirations were moderated and the extent to which material achievements are emphasized in our daily environment were reduced an analysis of the financial and economic crisis that developed during 2008 suggests that it will not contribute to either of these points rather by increasing the public s focus on the economic sphere even beyond pre crisis levels it may lead to a further decrease in the acceptance of de growth policies in the population

property relations and economic development the other land reform abstract continued concern for development has led to the suggestion that private property rights should be created to stimulate economic development this suggestion derives from an incomplete understanding of the property relations on the public domain lands in the arid tropics and from a confusion of cause and effect between property and economic productivity a model of the private public boundary in land is developed that challenges the view that wealth would increase if land at the extensive margin were privatized the various types of property regimes in land are defined and explained

the implicit costs of motherhood over the lifecycle cross cohort evidence from administrative longitudinal data it is well known that the explicit costs of raising a child have grown over the past several decades less well understood are the implicit costs of having a child and how they have changed over time in this article we are the first to examine the evolution of the implicit costs of motherhood over the lifecycle and across generations using high quality administrative data we estimate that the lifetime labor market income gap between mothers and women who never have children never mothers decreases from around 350 000 to 280 000 between women born in the late 1940s and late 1960s gaps tend to increase monotonically over the lifecycle and decrease monotonically between cohorts our evidence suggests that changes in the gaps are caused by changing labor force participation rates

economic de growth vs steady state economy in recent years the concept of economic de growth decroissance based on the literature of nicolas georgescu roegen e g 1 3 has found a revival in france italy spain and other countries in the popular as well as in the academic literature therein authors took on board georgescu roegens categorical rejection of a steady state economy sse as proposed by herman daly 4 they argue that economic degrowth is the only viable alternative goal to the growing economy this position is challenged in this article and it is concluded that the two concepts are in fact complements economic de growth is not a goal in itself but the rich north s path towards a globally equitable sse moreover the de growth literature can benefit from the strong economic historic roots of the sse and from daly s macroeconomic concepts while in return being able to give lessons about bottom up approaches this would be particularly important for the population issue where daly proposes limited birth licences unfortunately statements on demography are inconsistent and underdeveloped in the de growth literature further it is concluded that most criticisms of the sse are due to a too narrow and technocratic interpretation of the concept instead the sse should be defined as a quasi steady state resting in a dynamic equilibrium and as an unattainable goal which can and probably should be approximated

having it all for all child care subsidies and income distribution reconciled abstract we study the design of child care policies when redistribution matters traditional mothers provide some informal child care whereas career mothers purchase full time formal care the sorting of women across career paths is endogenous and shaped by a social norm about gender roles in the family via this social norm traditional mothers informal child care imposes an externality on career mothers so that the market outcome is inefficient informal care is too large and the group of career mothers is too small so that inefficiency and gender inequality go hand in hand in a first best world redistribution across couples and efficiency are separable redistribution is performed via lump sum transfers and taxes which are designed to equalize utilities across all couples the efficient allocation of child care is obtained by subsidizing formal care at a pigouvian rate however in a second best setting a trade off between efficiency and redistribution emerges the optimal uniform subsidy is lower than the pigouvian level conversely under a nonlinear policy the first best pigouvian rule for the marginal subsidy on informal care is reestablished while the share of high career mothers continues to be distorted downward for incentive reasons this policy is effective in reconciling the objectives of reducing the child care related inefficiency and achieving a more equal income distribution across couples our results continue to hold when the norm is defined within the mothers social group rather than being based on the entire population

the evolution of social norms in common property resource use the problem of extracting commonly owned renewable resources is examined within an evolutionary game theoretic framework it is shown that cooperative behavior guided by norms of restraint and punishment may be stable in a well defined sense against invasion by narrowly self interested behavior the resource stock dynamics are integrated with the evolutionary game dynamics effects of changes in prices technology and social cohesion on extraction behavior and the long run stock are analyzed when threshold values of the parameters are crossed social norms can break down leading generally to the lowering of the long run stock and possibly to its extinction copyright 1996 by american economic association

the motherhood earnings dip evidence from administrative records using spanish social security records we document the channels through which mothers fall onto a lower earnings track such as shifting into part time work accumulating lower experience or transitioning to lower paying jobs and are able to explain 71 percent of the unconditional individual fixed effects motherhood wage gap the earnings trajectories analysis reveals that mothers to be experience important relative earnings increases several years before giving birth but this earnings advantage falls right after birth taking in average nine years to recover heterogeneity matters as most of the motherhood dip is driven by workers with permanent contracts