politics time and the laffer curve why should a rationally motivated political decision process generate an inverse relationship between tax rates and tax revenues there would never seem a logical reason for increasing tax rates beyond maximum revenue limits in this note we explain how such a position can emerge and show why once in such a position political decision makers may find it difficult to escape

eldercare hours work hours and perceived filial obligations in this paper we take a fresh look at the magnitude of the trade off between caring informally for a parent and paid work we adopt a simultaneous approach with a primary focus on how hours of car

toward a theory of sustainable entrepreneurship reducing environmental degradation through entrepreneurial action this article explains how entrepreneurship can help resolve the environmental problems of global socio economic systems environmental economics concludes that environmental degradation results from the failure of markets whereas the entrepreneurship literature argues that opportunities are inherent in market failure a synthesis of these literatures suggests that environmentally relevant market failures represent opportunities for achieving profitability while simultaneously reducing environmentally degrading economic behaviors it also implies conceptualizations of sustainable and environmental entrepreneurship which detail how entrepreneurs seize the opportunities that are inherent in environmentally relevant market failures finally the article examines the ability of the proposed theoretical framework to transcend its environmental context and provide insight into expanding the domain of the study of entrepreneurship

operations research for green logistics an overview of aspects issues contributions and challenges the worldwide economic growth of the last century has given rise to a vast consumption of goods while globalization has led to large streams of goods all over the world the production transportation storage and consumption of all these goods however have created large environmental problems today global warming created by large scale emissions of greenhouse gasses is a top environmental concern governments action groups and companies are asking for measures to counter this threat operations research has a long tradition in improving operations and especially in reducing costs in this paper we present a review that highlights the contribution of operations research to green logistics which involves the integration of environmental aspects in logistics we give a sketch of the present and possible developments focussing on design planning and control in a supply chain for transportation inventory of products and facility decisions while doing this we also indicate several areas where environmental aspects could be included in or models for logistics

health and work in the family evidence from spouses cancer diagnoses abstract using canadian administrative data from multiple sources we provide the first nationally representative estimates for the effect of spouses cancer diagnoses on individuals employment and earnings and on family income our identification strategy exploits unexpected health shocks and combines matching with individual fixed effects in a generalized difference in differences framework to control for observable and unobservable heterogeneity while the effect of spousal health shocks on labor supply is theoretically ambiguous we find strong evidence for a decline in employment and earnings of individuals whose spouses are diagnosed with cancer we interpret this result as individuals reducing their labor supply to provide care to their sick spouses and to enjoy joint leisure family income substantially declines after spouses cancer diagnoses suggesting that the financial consequences of such health shocks are considerable

a generalized quantity discount pricing model to increase supplier s profits in this paper the joint problem of ordering and offering price discount by a supplier to his sole major buyer is analyzed the objective is to induce the buyer to alter his order schedule and size so that the supplier can benefit from lower set up ordering and inventory holding costs we generalize the quantity discount pricing model of monahan monahan j p 1984 a quantity discount pricing model to increase vendor profits management sci 30 6 720 726 to 1 explicitly incorporate constraints imposed on the amount of discount that can be offered and 2 relax the implicit assumption of a lot for lot or order for order policy adopted by the supplier an algorithm is developed to solve the supplier s joint ordering and price discount problem

the earnings of informal carers wage differentials and opportunity costs a substantial proportion of working age individuals in britain are looking after sick disabled or elderly people often combining their work and caring responsibilities previous research has shown that informal care is linked with substantial opportunity costs for the individual due to forgone wages as a result of non labour market participation in this paper we show that informal carers exhibit further disadvantages even when participating using the british household panel study bhps we decompose wage differentials and show that carers can expect lower returns for a given set of characteristics with this wage penalty varying along the pay distribution and by gender furthermore opportunity costs from forgone wages and wage penalties are estimated and found to be substantial

production externalities and long run equilibria bargaining and pigovian taxation this paper analyzes bargaining and pigovian taxation solutions to inefficiencies from production externalities with free entry the coase theorem fails in a decentralized context but remains valid if the property rights holder can act like a command economy planner a less powerful price taking rights holder s objective function is nonconcave causing an inefficient bargaining outcome bargaining complicates pigovian taxes with a nonlinear tax scheme required to sustain the optimum polluting firms pay a franchise tax whose revenue is given lump sum to consumers and face a marginal charge only on excess output which thus raises no revenue in equilibrium

the welfare analytics of transaction costs externalities and institutional choice a natural result of the economist s participation in externality literature has been a strong emphasis upon market and price guided policies available theoretical foundations are insufficient for supporting this ideology absent is a conceptual framework which integrates institutional options and their attendant resource costs with what we know of resource and technology constraints this paper addresses this omission by incorporating an explicit role for transaction costs into traditional welfare diagrammatics

a co ordination model combining incentive scheme and co ordination policy for a single vendor multi buyer supply chain abstract incentive scheme and co ordination policy are substantial components for the co ordination of a decentralized supply chain system but there is little work combining the two components as a single decision model li and wang 2007 this paper proposes a model which incorporates both incentive and co ordination issues into a single co ordination model for a single vendor multi buyer supply chain in the proposed model the co ordination is achieved by synchronizing ordering and production cycles while price discount which is based on the buyers order intervals is used as the incentive to motivate buyers to participate in the co ordination while the vendor is benefited from the co ordination by synchronized cycles the proposed price discount scheme can guarantee that a buyer s total relevant cost of co ordination will be reduced when compared with independent optimization more importantly the proposed price discount scheme does not require any cost information from the buyers

the effect of informal care on work and wages cross sectional evidence in the united states finds that informal caregivers have less attachment to the labor force the causal mechanism is unclear do children who work less become informal caregivers or are children who become caregivers working less using longitudinal data from the health and retirement study we identify the relationship between informal care and work in the united states both on the intensive and extensive margins and examine wage effects we control for time invariant individual heterogeneity rule out or control for endogeneity examine effects for men and women separately and analyze heterogeneous effects by task and intensity we find modest decreases 2 4 percentage points in the likelihood of working for male caregivers providing personal care female chore caregivers meanwhile are more likely to be retired for female care providers who remain working we find evidence that they decrease work by 3 10hours per week and face a 3 percent lower wage than non caregivers we find little effect of caregiving on working men s hours or wages these estimates suggest that the opportunity costs to informal care providers are important to consider when making policy recommendations about the design and funding of public long term care programs

vote buying in a stylized setting as we noted in the introduction we do not propose to discuss possible implications for the real world of democratic politics that may be drawn from the highly stylized models of vote buying that we have analyzed in this paper to the extent that economic legal or moral thresholds prevent the emergence of the purchase and sale of votes among persons who initially possess property rights in the collective franchise our whole analysis is simply inapplicable if however such thresholds serve only to inhibit but not to prevent totally the emergence of such markets there should be some value in an analysis that embodies the zero transactions costs assumption

revenue implications of money creation under leviathan most governments possess a monopoly franchise in the creation of money economists provide an analytical justification for this institutional arrangement either in terms of the use of monetary aggregates for macro economic stabilization or in terms of the alleged inability of competitive markets to generate tolerably efficient monetary results any complete case for the government s monetary monopoly must however depend on a comparison of market and political arrangements a comparison that requires predictions about how governments are likely to behave once a monopoly franchise is assigned similarly such predictions are crucial in evaluating restrictions that might be imposed on the government s exercise of its money creation power in designing a monetary constitution in the analysis of political arrangements the revenue implications of the money creation power are probably more significant than considerations of either macro economic stability or optimality in the money supply although those revenue implications are incidental to demonstrating the nature of market failure in monetary arrangements they are fundamental in understanding how the government might exploit a monopoly in money creation once granted our interest in the revenue effects of money creation stems from a broader study of constitutional restrictions on the revenueraising authority of government see our book the power to create money is naturally encompassed in this restrictions on the revenue raising power must embody restrictions on the power to create money consequently the fiscal constitution has important implications for the monetary constitution in this paper we examine both the revenue implications of money creation and desirable consitutional restrictions on the money creation power within the context of a specific model of political processes

economy of specialization and diseconomy of externalities abstract suppose the production of x by agent i causes an externality to the production of y by agent j a prerequisite for the existence of an externality problem is that i and j are not far apart and are separate agents but an externality corrective government policy may make j integrate with i or move away and start producing both x and y the above reactions by j essentially change the institutional structure and division of labor and alter the boundary which differentiates what is internal and what is external previous analysis has neglected this aspect for which this paper provides a pioneering analysis

entrepreneurship and the internalization of externalities in an idealized setting for the operation of markets it becomes artificial and redundant to interpret the production trade process itself as involving the internalization of potentially relevant externalities nonetheless it may be useful to think of the ordinary operation of the market in these terms when we want to move beyond the economists idealized construction to settings where externalities defined in the orthodox sense may exist in such settings trade becomes only one among several institutional arrangements for internalizing externalities in this paper we suggest that for the particular types of economic interaction consequent upon the inauguration of entrepreneurial ventures the internalization embodied in a well functioning legal structure may be superior to either trade or overt political arrangements our purpose is to compare alternative means of internalizing potential externalities in terms of the effects on the activity of entrepreneurs and through such activity on the pace of economic development consider the two party example made familiar by r h coase in his now classic paper on social cost at an elementary level of analysis the interaction between the cattle rancher and the wheat farmer is not different from that between any two ordinary traders indeed this point was the fundamental one in coase s argument to the extent that the externality is pareto relevant exchange will tend to take place hence internalizing the effect and guaranteeing an efficient outcome 2 although much of his discussion was posed in terms of liability for damages the implicit model for coase s analysis is one that assumes all property rights

risk aversion in inventory management traditional inventory models focus on risk neutral decision makers i e characterizing replenishment strategies that maximize expected total profit or equivalently minimize expected total cost over a planning horizon in this paper we propose a framework for incorporating risk aversion in multiperiod inventory models as well as multiperiod models that coordinate inventory and pricing strategies we show that the structure of the optimal policy for a decision maker with exponential utility functions is almost identical to the structure of the optimal risk neutral inventory and pricing policies these structural results are extended to models in which the decision maker has access to a partially complete financial market and can hedge its operational risk through trading financial securities computational results demonstrate that the optimal policy is relatively insensitive to small changes in the decision maker s level of risk aversion

who will care employment participation and willingness to supply informal care the impact of informal care responsibilities on the willingness and ability of caregivers to undertake paid employment has been the subject of a number of studies in contrast the effect of employment status on willingness to undertake informal care has been less well explored this paper concentrates on this less studied direction of causality using the data provided by 15 waves of the british household panel survey we find that employment participation and earnings both impact negatively on willingness to supply informal care this evidence has implications for health and social care policy since informal care has been shown to be a significant substitute for formal long term care

the opportunity costs of informal care does gender matter in this paper we investigate the costs borne by both male and female carers in terms of their forgone formal employment opportunities traditionally informal care was supplied by women but nowadays women are not only more likely to work but also likely to be significant contributors to family finances for women this implies that the size of any forgone earnings cost of informal care is increasing at the same time population ageing is making for increasing numbers requiring care from a policy perspective it is therefore helpful to consider a less traditional but nevertheless important source of informal care men we find that both male and female carers bear indirect costs in that they are less likely to be in paid work than otherwise similar non carers and when they are in paid work they earn significantly less however we find that the motivation for lower employment participation is not the same for men as it is for women

the labour market costs of community care this paper reports an empirical investigation into the influence of informal care responsibilities on the labour supply of women the objective is to examine the argument that the uk policy of caring for the chronic sick in the community involves a nontrivial opportunity cost in the form of the forgone labour supply of the informal carers upon which it relies we find that informal carers who care for less than 20 h per week are in fact more likely to participate in the labour market but tend to work for fewer hours per week than otherwise similar noncarers informal carers who care for 20 h or more a week are less likely to participate but only slightly however when they do undertake formal employment they tend to earn less per hour and work for fewer hours per week

lifting the burden state care of the elderly and labor supply of adult children we use a reform in the federal funding of care for the elderly in norway to examine the effects of formal care expansion on the labor supply decisions of middle aged children we find a consistent and significant negative impact of formal care expansion on insured work absences for the adult daughters of single elderly parents this effect is particularly strong for daughters with no siblings who are also more likely to exceed earnings thresholds after the reform we find no impacts of the reform on daughters mobility or parental health and no effects on adult sons

the coevolution of industries social movements and institutions wind power in the united states this study of the u s wind energy industry extends theory on the process of industry emergence by developing and testing a coevolutionary model of the relationship between social movement organizations smos institutions and industries building on research that suggests that smos can influence institutions and the path of emerging industries we show that the growth of an industry can also influence the diversity of social movements by motivating the participation of specialist smos these new smos in turn deploy distinct knowledge capabilities goals and strategies to produce institutional changes that are necessary for the continued growth of the industry our study offers a more complete conceptualization of the influence of social movements on industry emergence and growth and it extends understanding of how smo diversity is produced

a one vendor multi buyer integrated inventory model abstract we consider a one vendor multi buyer integrated inventory model the vendor seeks to minimize his total annual cost subject to the maximum costs which buyers are prepared to incur in order to implement this model the vendor only needs to know buyer s annual demand and previous order frequency which can be inferred from buyer s past ordering behavior we find the optimal solution for the one vendor one buyer case and present a heuristic approach for the one vendor multi buyer case

bibliography of james m buchanan s publications 1949 1986 1 prices income and public policy with c l allen and m r colberg new york mcgraw hill 1954 second edition 1959 2 public principles of public debt homewood richard d irwin 1958 3 the public finances homewood richard d irwin 1960 second edition 1965 translated into spanish as hacienda publica 1968 third edition 1970 translated into japanese 1972 fourth edition with marilyn flowers 1975 fifth edition with marilyn flowers 1980 sixth edition with marilyn flowers 1986 4 fiscal theory and political economy chapel hill university of north carolina press 1960 translated into turkish 1965 translated into japanese 1972 5 the calculus of consent logical foundations of constitutional democracy with gordon tullock ann arbor university of michigan press 1962 paperback edition 1965 translated into japanese 1979 translated into spanish 1980 6 public finance in democratic process chapel hill university of north carolina press 1966 translated into japanese 1971 translated into spanish 1973 7 demand and supply of public goods chicago rand mcnally 1968 translated into italian 1968 translated into japanese 1974 8 cost and choice an inquiry in economic theory chicago markham publishing co october 1969 out of print reprinted by university of chicago press midway reprint 1979 9 academia in anarchy an economic diagnosis with nicos devletoglou basic books 1970 english edition 1971 10 theory of public choice political applications of economics edited with robert tollison university of michigan press 1972 11 lse essays on cost edited with g f thirlby london wiedenfeld and nicholson 1973 12 the limits of liberty between anarchy and leviathan chicago university of chicago press 1975 translated into japanese 1977 translated into italian 1979 translated into german 1984 13 democracy in deficit the political legacy of lord keynes with richard e wagner new york academic press 1978 translated into japanese 1979 translated into korean 1981 14 freedom in constitutional contract perspective of a political economist college station texas a m university press 1978 15 whatshould economistsdo indianapolis indiana liberty press 1979

inventory control with an exponential utility criterion a base stock policy is shown to be optimal when a dynamic version of the news vendor model is optimized with respect to an exponential utility criterion

your next of kin or your own career caring and working among the 50 of europe an increasing demand for both formal and informal care is likely to result from the ongoing demographic transition at the same time as there is a further move away from the traditional domestic division of labour public policy making that aims at increasing the supply of informal care necessitates knowledge about the relative importance of various incentives for individual care providers this paper takes as a point of departure that the willingness to supply informal care is partly explained by the extent to which it adversely affects labour market outcomes and analyses the effect on labour market outcomes of providing informal care to one s elderly parent s among the 50 of europe data from share survey of health ageing and retirement in europe was used to examine the association between on the one hand hours of informal care provided and on the other 1 the probability of employment 2 hours worked and 3 wages respectively the results suggest that giving informal care to one s elderly parents is associated with significant costs in terms of foregone labour market opportunities and that these adverse effects vary between countries

do they care too much to work the influence of caregiving intensity on the labour force participation of unpaid caregivers in canada the recent growth of the home care sector combined with societal and demographic changes have given rise to concerns about the adequacy of the supply of family and friend caregivers potential caregivers face competing time pressures that pull them in the direction of the labour market on one hand and towards unpaid caregiving duties on the other this paper examines the influence of unpaid caregiving on the labour supply of a cohort of working aged caregivers in canada with particular emphasis on caregiving intensity results suggest that caregivers are heterogeneous in both their caregiving inputs and associated labour market responses thereby underscoring the importance of controlling for caregiving intensity when measuring labour supply the negative influence of primary caregiving on labour supply appears to be at the level of labour force participation rather than on hours of work or wages

impact of risk aversion on optimal decisions in supply contracts abstract we introduce the concept of conditional value at risk as the evaluation criterion in a supply contract model we first derive the manufacturer s optimal decisions and then analyze the impact of risk aversion on the manufacturer s decisions we follow by conducting numerical experiments to observe how the manufacturer s risk attitude affects his decisions we obtain results that characterize the explicit relationship between the manufacturer s risk attitude and his optimal decisions we also show the dependence of the decision variables on the price and cost parameters which is seldom given in the literature

dynamic wage and employment effects of elder parent care this article formulates and estimates a dynamic discrete choice model of elder parent care and work to analyze how caregiving affects a woman s current and future labor force participation and wages the model incorporates parental health changes human capital accumulation and job offer availability the estimates indicate that women face low probabilities of returning to work or increasing work hours after a caregiving spell i use the estimated model to simulate the caregiving employment and welfare effects of a longer unpaid work leave than currently available under the family and medical leave act a paid leave and a caregiver allowance

an equilibrium model of the supply chain network under multi attribute behaviors analysis abstract this paper studies a supply chain network scn equilibrium model considering decision makers multi attribute behaviors from the perspective of behavioral finance in this paper an equilibrium model of an uncertain snc is constructed in which retailers choose their decisions according to their risk averse behavior loss averse behavior and regret averse behavior by using different weights to represent retailers attitudes to these three behaviors the retailers multi attribute utility functions are developed the equilibrium conditions of the manufacturers the retailers together with the network are established by the finite dimensional variational inequality formulation three numerical examples are solved in the first numerical example we illustrate the effect of each of these three behaviors on the equilibrium decisions the profits and the utilities of the decision makers in the other two numerical examples we explore the effects of changes in attitudes to these three behaviors on the equilibrium decisions profits and utilities of the decision makers the numerical results show that the equilibrium decisions are affected by each of these three behaviors very much moreover they are sensitive to the changes in attitudes to these behaviors

environmental performance impacts of vendor buyer coordination abstract effective coordination is a hallmark of successful supply chain management without such coordination vendors and buyers will act independently to make decisions that optimize their own objectives e g maximize their respective profits or minimize their costs this non coordinated approach is unlikely to be optimal when one considers the supply chain as a whole most vendor buyer coordination research concentrates only on an objective of minimizing total system costs but with the increasing environmental awareness in business and the general public many organizations acknowledge that strategies and practices which incorporate environmental considerations are essential to acquire a competitive advantage the objectives of this research are concerned not only with the economic impact of vendor buyer coordination on the organizations involved but also with the wider effects on society such as the effects of pollution on the environment this research demonstrates how to effectively incorporate environmental issues into vendor buyer coordination first we study the impacts of cost minimizing vendor buyer coordination models on environmental performance when compared with independent non coordinated optimization second we develop a single vendor multi buyer coordination model that includes both costs and environmental performance measures in its objective function a numerical example and a real case study show how both the total system cost and the environmental performance can be simultaneously improved

towards a renaissance in international business research big questions grand challenges and the future of ib scholarship in this article we review critiques of international business ib research with a focus on whether ib scholarship tackles big questions we identify three major areas where ib scholars have addressed important global phenomena but find that they have had little influence outside of ib and only limited effects on business or government policy we propose a redirection of ib research towards grand challenges in global business and the use of interdisciplinary research methods multilevel approaches and phenomena driven perspectives to address those questions we argue that ib can play a more constructive and vital role by tackling expansive topics at the business societal interface

start up sustainability an insurmountable cost or a life giving investment abstract an outstanding question in the entrepreneurship literature reigns given recent emphases on sustainable business practices and corporate social responsibility if small start ups are generally stretched for time and resources does it enhance their chances for survival and success to be sustainable and socially responsible new firms can aid in rectifying pressing environmental and social issues by being more sustainable while many entrepreneurs like a sustainable business model and or mission investment may not follow so willingly this paper examines a sample of 300 start ups across thirty cities around the world to consider whether sustainability is rewarded by investors investors signal confidence in start ups when they infuse life extending investments into them this analysis also considers whether a more sustainable national context affects investor confidence and whether a sustainable firm within a sustainable national context gains more investor attention and investment results show that investors avoid sustainable firms particularly those that are environmentally sustainable moreover investors enjoy national contexts that are socially responsible but pay no attention to those that are environmentally conscious in addition firms that are sustainable in a sustainable national context are not better off for attracting investment insights for policy are that mainstream investors are attracted by national social policies but these investors are unlikely to be the main force behind sustainable venture growth under today s conditions

a multi product risk averse newsvendor with exponential utility function abstract we consider a multi product newsvendor using an exponential utility function we first establish a few basic properties for the newsvendor regarding the convexity of the model and monotonicity of the impact of risk aversion on the solution when the product demands are independent and the ratio of the degree of risk aversion to the number of products is sufficiently small we obtain closed form approximations of the optimal order quantities the approximations are as easy to compute as the risk neutral solution we prove that when this ratio approaches zero the risk averse solution converges to the corresponding risk neutral solution when the product demands are positively negatively correlated we show that risk aversion leads to lower higher optimal order quantities than the solution with independent demands using a numerical study we examine convergence rates of the approximations and thoroughly study the interplay of demand correlation and risk aversion the numerical study confirms our analytical results and further shows that an increased risk aversion does not always lead to lower order quantities when demands are strongly negatively correlated

informal care and long term labor market outcomes in this paper we estimate long run effects of informal care provision on female caregivers labor market outcomes up to eight years after care provision we compare a static version where average effects of care provision in a certain year on later labor market outcomes are estimated to a partly dynamic version where the effects of up to three consecutive years of care provision are analyzed our results suggest that there are significant initial negative effects of informal care provision on the probability to work full time the reduction in the probability to work full time by 4 percentage points or 2 4 5 0 if we move from point to partial identification is persistent over time short run effects on hourly wages are zero but we find considerable long run wage penalties

voting as a lottery supermajorities have their advantage as well as their disadvantage they provide an hedge against being in the minority but they make being in the majority less likely we characterize this trade oand compute the most preferred majority threshold the relevant parameters are voting power risk aversion and pessimism people who feel powerful prefer low thresholds high thresholds are preferred by risk averters or by those who are pessimistic about being in the majority further we study constitutional agreements on the voting rule members of the constituent assembly are heterogeneous in the parameters above we show that weak and minority members succeed in pushing forward on high and protective rules

the political economy of long term care we build a two dimensional political economy model to explain the provision and financing of long term care and income redistribution voting agents differ in need and income opening up two conflicts one sets families with disabled parents who are in favor of a public long term care program against the ones without such parents who oppose public financing the other sets the poor against the rich with the former preferring heavier income taxation than the latter we show that a structure induced equilibrium always exists and that it is unique if informal care is provided in equilibrium the equilibrium not only explains the negative association of income inequality and long term care financing but also allows predictions about how demographic change might impact long term care arrangements and expenses