the dark side of buyer power supplier exploitation and the role of ethical climates media increasingly accuse firms of exploiting suppliers and these allegations often result in lurid headlines that threaten the reputations and therefore business successes of these firms neither has the phenomenon of supplier exploitation been investigated from a rigorous ethical standpoint nor have answers been provided regarding why some firms pursue exploitative approaches by systemically contrasting economic liberalism and just prices as two divergent perspectives on supplier exploitation we introduce a distinction of common business practice and unethical supplier exploitation since supplier exploitation is based on power we elucidate several levels of power as antecedents and investigate the role of ethical climate as a moderator this study extends victor and cullen s 1988 ethical climate matrix according to a supply chain dimension and is summarized in an integrated conceptual model of five propositions for future theory testing results provide a frame of reference for executives and scholars who can now delineate unethical exploitation and understand important antecedents of the phenomenon better

costs of business cycles for unskilled workers abstract unskilled workers are subject to a much larger risk of unemployment during recessions than are skilled workers moreover unskilled workers earn less income which limits their ability to self insure we examine how this heterogeneity in unemployment risk and income across different skill groups translates into heterogeneity in the cost of business cycles we find that the welfare cost of business cycles for unskilled workers is substantially higher than the welfare cost for skilled workers

speculative growth hints from the u s economy we propose a framework for understanding episodes of vigorous economic expansion and extreme asset valuations we interpret this phenomenon as a high valuation equilibrium with a low cost of capital based on optimism about future funding the key ingredient for such equilibrium is feedback from increased growth to a decline in the long run cost of capital this feedback arises when an expansion comes with technological progress in the capital sector when fiscal rules generate procyclical fiscal surpluses when the rest of the world has lower expansion potential or high saving needs and when financial constraints are relaxed by the expansion itself

benefit cost analysis for financial regulation calls for benefit cost analysis in rule making based on the dodd frank wall street reform act have revealed a paucity of work on allocative efficiency in financial markets we propose three principles to help fill this gap first we highlight the need for quantifying the statistical cost of a crisis to trade off the risk of a crisis against loss of growth during good times second we propose a framework quantifying the social value of price discovery and highlighting which arbitrages are over and under supplied from a social perspective finally we distinguish between insurance benefits and gambling facilitation harms of market completion

globalization and its challenges rudi was born and grew up in krefeld germany he was an undergraduate at the university of geneva and completed his ph d at the university of chicago in 1971 which is where we met he was a student of robert mundell and both the subject matter the development of the mundell fleming model and the elegance and insights of his early work reflected mundell s influence he taught at the university of rochester and at the university of chicago before accepting an offer from mit in 1975

influences upon organizational ethical subclimates a replication study of a single firm at two points in time this research replicates weber s 1995 study of a large financial services firm that found that ethical subclimates exist within multi departmental organizations are influenced by the function of the department and the stakeholders served and are relatively stable over time relying upon theoretical models developed by thompson 1967 and victor and cullen 1998 hypotheses are developed that predict the ethical subclimate decision making dimensions and type for diverse departments within a large steel manufacturing firm and that these ethical subclimate types will be stable across the two periods of time when the data were collected employees were surveyed in 1995 and again in 1999 using victor and cullen s ethical climate questionnaire response rates of 88 and 94 percent were achieved contrary to weber s findings our results imply that in both samples ethical subclimates may be determined by the strength of an organization s overall ethical climate rather than the department s function however we did find support for weber s earlier contention that these subclimates are relatively stable our results also suggest that differences may exist across industries that is when comparing a large steel manufacturer as we did in our study with a large financial services organization as weber did in his 1995 study

the welfare cost of business cycles revisited finite lives and cyclical variation in idiosyncratic risk abstract this paper investigates the welfare costs of business cycles in a heterogeneous agent overlapping generations economy which is distinguished by idiosyncratic labor market risk aggregate variation arises both in terms of aggregate productivity shocks and countercyclical variation in the volatility of idiosyncratic shocks based on both aggregate data and microeconomic data from the panel study on income dynamics we find the welfare benefits of eliminating aggregate variation to be large an order of magnitude larger than those originally documented by lucas 1987 the key difference is countercyclical variation in idiosycratic risk which both amplifies the welfare cost of aggregate productivity shocks and imposes a cost of its own the magnitude of these effects increases non linearly in risk aversion our results therefore are consistent with the increasingly popular notion that distributional effects are an important aspect of understanding the welfare cost of business cycles

moral climate in business firms a conceptual framework for analysis and change this paper introduces a new conceptual framework for studying moral climate in business firms offering an alternative to other theoretical models currently in the literature the framework integrates recent advances in organizational climate theory into a new conceptualization of the moral climate construct that explains how moral climates evolve in organizations and suggests moral climate change

capital flows consumption booms and asset bubbles a behavioural alternative to the savings glut hypothesis bernanke 2005 hypothesized that a global savings glut was causing large trade imbalances however we show that the global savings rates did not show a robust upward trend during the relevant period moreover if there had been a global savings glut there should have been a large investment boom in the countries that imported capital instead those countries experienced consumption booms national asset bubbles explain the international imbalances the bubbles raised consumption resulting in large trade deficits in a sample of 18 oecd countries plus china movements in home prices alone explain half of the variation in trade deficits

when can changes in expectations cause business cycle fluctuations in neo classical settings abstract it is often argued that changes in expectation are an important driving force of the business cycle however it is well known that changes in expectations cannot generate positive co movement between consumption investment and employment in the most standard neo classical business cycle models this gives rise to the question of whether changes in expectation can cause business cycle fluctuations in any neo classical setting or whether such a phenomenon is inherently related to market imperfections this paper offers a systematic exploration of this issue our finding is that expectation driven business cycle fluctuations can arise in neo classical models when one allows for a sufficiently rich description of the production technology however such a structure is rarely allowed or explored in macro models in particular we identify a multi sector setting and a setting with a costly distribution system in which expectation driven business cycles can arise

asset bubbles and the cost of economic fluctuations lucas 1987 2003 estimates that the cost of economic fluctuations is low a social planner would pay no more than 0 1 of permanent consumption to eliminate all future business cycle fluctuations the current paper extends lucas calculations by studying the costs of fluctuations arising from asset bubbles we estimate two classes of costs consumption volatility due to asset bubbles in a representative agent economy and consumption volatility that arises because households have heterogeneous exposure to the bubble assets we show that the magnitude of welfare costs is primarily driven by the existence of heterogeneity our benchmark calibration implies that the asset bubbles of the last decade generated a social welfare cost equal to a permanent 3 reduction in the level of national consumption if assets are held proportionately across the population these welfare costs fall by an order of magnitude our calculations are sensitive to the details of the calibration including the degree of balance sheet and trading heterogeneity the coefficient of relative risk aversion and the magnitude of the asset bubble our preferred specifications generate welfare costs ranging from 1 to 10 of permanent national consumption

overlapping generations or infinitely lived agents intergenerational altruism and the economics of global warming do we need an overlapping generations model for the economics of global warming to answer this question an infinitely lived agent ila approach and an overlapping generations olg model are contrasted ila and olg can be viewed as polar representations of intergenerational altruism with ila an immortal agent acts through his investment savings decisions as trustee on the behalf of the future generations with olg agents need not behave altruistic they simply save during working years and dissave completely during retirement nevertheless ila and olg must not differ in their implication for greenhouse policy greenhouse gas abatement is a straightforward alternative to physical capital formation and even without altruism each age cohort has an incentive to provide current abatement in order to reduce future damages attributable to climate change indeed under reasonable assumptions and parameter values our simulations reveal such an invariance result provided carbon taxes are the only policy tool and tax revenues are recycled through socially mandated rules projections of economic growth climate change and energy consumption are only insignificantly affected by the choice of approach

evaluating risky consumption paths the role of intertemporal substitutability abstract in dynamic stochastic welfare comparisons a failure clearly to distinguish between risk aversion and intertemporal substitutability can result in misleading assessments of the impact of risk aversion on the welfare costs of consumption risk changes the problem arises in any setting in which uncertainty is propagated over time notably but not exclusively in economies with stochastic consumption trends regardless of the preference setup adopted an increase in risk aversion amplifies the per period costs of risks the weights consumers use to cumulate the per period costs of risks with persistent effects should however depend on intertemporal substitutability as well as on risk aversion under time separable expected utility preferences an increase in the period utility function s curvature therefore alters the welfare effect of risk for reasons that are in part unrelated to risk aversion to illustrate these points i reconsider lucas s estimate of the cost of consumption instability for the postwar united states

climate change and the representative agent the artifice of an infinitely lived representative agent iscommonly invoked to balance the present costs and future benefitsof climate stabilization policies since actual economies arepopulated by overlapping generations of finite lived persons this approach begs important questions of welfare aggregation this paper compares the results of representative agent andoverlapping generations models that are numerically calibratedbased on standard assumptions regarding climate economyinteractions under two social choice rules pareto efficiencyand classical utilitarianism the models generate closelysimilar simulation results in the absence of policies toredistribute income between present and future generations efficient rates of carbon dioxide emissions abatement rise from15 to 20 between the years 2000 and 2105 under classicalutilitarianism in contrast optimal control rates rise from 48 to 79 this same period

rare disasters asset prices and welfare costs a representative consumer model with epstein zin weil preferences and i i d shocks including rare disasters accords with observed equity premia and risk free rates if the coefficient of relative risk aversion equals 3 4 if the intertemporal elasticity of substitution exceeds one an increase in uncertainty lowers the price dividend ratio for equity and a rise in the expected growth rate raises this ratio calibrations indicate that society would willingly reduce gdp by around 20 percent each year to eliminate rare disasters the welfare cost from usual economic fluctuations is much smaller though still important corresponding to lowering gdp by about 1 5 percent each year

on measuring the welfare cost of business cycles lucas 1987 argues that the gain from eliminating aggregate fluctuations is trivial following lucas a number of researchers have altered assumptions on preferences and found that the gain from eliminating business cycles are potentially very large however in these exercises little discipline is placed on preference parameters this paper estimates the welfare cost of business cycles allowing for potential time non separabilities in preferences where discipline is placed on the choice of preference parameters by requiring that the preferences be consistent with observed fluctuations in a model of business cycles that is a theoretical real business cycle world is constructed and the representative agent is then placed in this world the agent responds optimally to exogenous shocks given the frictions in the economy the agent s preference parameters along with other structural parameters are estimated using a bayesian procedure involving markov chain monte carlo methods two main results emerge from the paper first the form for the time non separability estimated in this paper is very different than the forms suggested and used elsewhere in the literature second the welfare cost of business cycles is close to lucas s estimate

the social cost of near rational investment abstract we show that the stock market may fail to aggregate information even if it appears to be efficient and that the resulting decrease in the information content of prices may drastically red

cost of business cycles with indivisibilities and liquidity constraints it is almost universally agreed that individuals face incomplete insurance markets and cannot perfectly insure against the idiosyncratic risk in this paper simple general equilibrium models with incomplete insurance markets are examined in order to assess the impact of imperfect insurance on the magnitude of the welfare costs of business cycles two versions of incomplete insurance markets are considered and certain statistical properties of the equilibrium stochastic processes in these environments are compared with those of a perfect insurance economy

the sensitivity of tests of the intertemporal allocation of consumption to near rational alternatives suppose a consumer sets consumption equal to income each period rather than following the optimal permanent income decision rule how much utility does he lose this paper finds that the answer is typically less than 10 cents 1 per quarter in environments specified by popular tests on aggregate data it includes calculations of the costs of excess sensitivity and excess smoothness to income and interest rate changes and the costs of ignoring information it concludes that the theory does not make predictions for aggregate tests that are robust to small costs such as information or transactions copyright 1989 by american economic association

a review of the stern review on the economics of climate change how much and how fast should we react to the threat of global warming the stern review argues that the damages from climate change are large and that nations should undertake sharp and immediate reductions in greenhouse gas emissions an examination of the review s radical revision of the economics of climate change finds however that it depends decisively on the assumption of a near zero time discount rate combined with a specific utility function the review s unambiguous conclusions about the need for extreme immediate action will not survive the substitution of assumptions that are consistent with today s marketplace real interest rates and savings rates

the cost of business cycles under endogenous growth robert e lucas jr argued that the welfare gains from reducing aggregate consumption volatility are negligible subsequent work that revisited his calculation continued to find small welfare benefits further reinforcing the perception that business cycles do not matter this paper argues instead that fluctuations can affect welfare by affecting the growth rate of consumption i show that fluctuations can reduce growth starting from a given initial consumption which can imply substantial welfare effects as lucas himself observed empirical evidence suggests the welfare effects are likely to be substantial about two orders of magnitude greater than lucas original estimates

job displacement risk and the cost of business cycles this paper analyzes the welfare costs of business cycles when workers face uninsurable job displacement risk that has a cyclical component using a simple general equilibrium model with incomplete markets this paper shows the following result for sufficiently high degree of risk aversion at least one cyclical variations in the long term earnings losses of displaced workers can generate arbitrarily large cost of business cycles even if the second moments of the distribution of individual income changes are constant over the cycle thus the previous literature which has either disregarded long term earnings losses of displaced workers or dealt with them only indirectly using second moment analysis might have severely under estimated the welfare cost of business cycles in addition to the theoretical analysis this paper also conducts a quantitative study of the cost of business cycles using empirical evidence on the long term earnings losses of u s workers the quantitative analysis suggests that cyclical variations in job displacement risk generate sizable cost of business cycles

trading off generations equity discounting and climate change the prevailing literature discusses intergenerational trade offs in climate change predominantly in terms of the ramsey equation relying on the infinitely lived agent model we discuss these trade offs in a continuous time olg framework and relate our results to the infinitely lived agent setting we identify three shortcomings of the latter first underlying normative assumptions about social preferences cannot be deduced unambiguously second the distribution among generations living at the same time cannot be captured third the optimal solution may not be implementable in overlapping generations market economies