interpreting economic time series this paper explores some of the implications for econometric practice of the principle that people s observed behavior will change when their constraints change in dynamic contexts a proper definition of people s constraints includes among them laws of motion that describe the evolution of the taxes they must pay and the prices of the goods that they buy and sell changes in agents perceptions of these laws of motion or constraints will in general produce changes in the schedules that describe the choices they make as a function of the information that they possess until very recently received dynamic econometric practice ignored this principle the practice of dynamic econometrics should be changed so that it is consistent with the principle that people s rules of choice are influenced by their constraints this is a substantial undertaking and involves major adjustments in the ways that we formulate estimate and simulate econometric models

deep habits price rigidities and the consumption response to government spending this paper inspects the deep habits mechanism originally used by ravn schmitt grohe and uribe 2006 to generate the positive comovement of public and private consumption observed in many var studies in their set up the price elasticity of demand is pro cyclical and it is optimal for the firm to lower the mark up while expanding production after the fiscal shock raising the demand for labor and the real wage consequently agents substitute consumption for leisure and overcome the negative wealth effect of the fiscal expansion here we show that increasing price stickiness reduces the impact of the fiscal shock on the real wage and hinders the rise of consumption if the degree of price stickiness is high enough consumption is crowded out this is in contrast to the role of price rigidities in the standard new keynesian model where they weaken the crowding out of consumption

nonseparable preferences frisch labor supply and the consumption multiplier of government spending one solution to a fiscal policy puzzle this paper proposes a theoretical explanation of the positive consumption multipliers of government spending often found in the data the explanation requires two ingredients first labor demand expands e g prices are sticky second general nonseparable preferences over consumption and leisure should be such that the two goods are substitutes that is frisch labor supply elasticity is lower than the constant consumption elasticity this implies that constant consumption labor supply shifts left existing empirical evidence on the relative magnitudes of the two elasticities supports this hypothesis the parametric conditions under which the result occurs are consistent with restrictions of concavity and noninferiority of consumption and leisure

an aggregate model of technical change a simple aggregate growth model is presented in which technology is described by a probability distribution from which new plants are drawn especially good draws are viewed as technological innovations that shift the mean of the following period s plant distribution function the resulting technical change is endogenous random and cumulative in contrast to conventional growth models the model s growth path displays nonstationary drift rather than deterministic trend and the long run per capita growth rate has positive rather than zero sensitivity to the model s saving parameter

r d and technology policy in nics as learning processes abstract this paper presents a dynamic learning perspective to research and development activity and to policies promoting these activities and technological development more generally the basic idea is that successful penetration of research and development rd multidisciplinary learning both technoeconomic and managerial organizational and learning which is cumulative through time this is especially so at an early infant phase of diffusion of this process through the economy a dynamic view of externalities and market failures is presented one that provides the basis for a catalytic perspective of technological policy this perspective is based on the distinction between an infant and a mature phase of policy where massive flexible search oriented support in the early phase sets the base for endogenization routinization of r d in the economy and for the possibility of drastic reductions in government support for traditional forms of r d in the later phase

uncertainty shocks and firm creation search and monitoring in the credit market abstract we develop a business cycle model where endogenous firm creation stems from two credit market frictions first entrepreneurs search for a lending relationship with a bank second an optimal debt contract with monitoring is implemented we analyze the interplay between both frictions and embed it into an otherwise standard business cycle model which we estimate with bayesian techniques we find that uncertainty shocks are a prime contributor to business cycle fluctuations in the us not only for macro financial aggregates but also for firm creation moreover we point out that the credit search friction dampens the financial accelerator mechanism because default may imply the end of the lending relationship

technology diffusion and the rate of technical change the way in which the process of technical change is formulated at the macroeconomic level implies generally speaking immediate diffusion or adoption of new technologies whether primarily disembodied in nature accounting for any shift in the production function as in the early technology index formulations or embodied in new investment as in the subsequent vintage growth models technical progress will be identified with advances in inventiveness or best practice technologies at first this might well seem the most appropriate way to separate out the contribution of the technology production factor from the other production factors from a straightforward economic point of view though advances in technology or best practice productivity levels are only relevant to the extent that they have been translated in actual achieved productivity levels the issue is a well known one in most empirical research on the measurement of the contribution of technical change to economic growth and has received much attention in the recent productivity slowdown debate denison i 979 griliches i980 nordhaus i980 and i 98i in particular there it was generally agreed that other technology factors including a slowdown in the rate of the spread of technology to use kendrick s i 98i term were more important than the actual decline in r d expenditure in contributing to the overall slowdown in productivity the importance of the diffusion of innovation rather than the mere occurrence of innovations is of course the major factor underlying most of the microeconomic diffusion literature the fundamental reasons for delay in adopting the so called retardation factors have been found to relate both to uncertainty and lack of information about the new technology and the often proprietary nature of the new technology since griliches i957 and mansfield s i96i seminal papers most of this literature has focused on the theoretical arguments underlying the traditional s shaped epidemic diffusion curve in more recent research particularly the mechanical static nature of these diffusion models has been questioned and various alternative diffusion models suggested including dynamic supply models metcalfe 1981 i982 stoneman i983 in which both the economic characteristics of the innovation and its diffusion environment have been made endogenous to the diffusion process these latter models in particular allow for an interpretation of the diffusion of technology in a broader macroeconomic growth and structural change perspective

the evolution of economic institutions as a propagation process based on some notions from recent game theoretic approaches to explain the emergence of institutions a model is put forward which implies some generalizations and extensions first the evolution of institutions is interpreted as a diffusion process this interpretation provides a general formal framework to cover both the case of strategic and that of non strategic interaction second different forms of interdependency effects between the individuals involved are identified as making the crucial difference between the case where institutions emerge spontaneously in an unorganized form and the case where they do not

cooperative agreements and the theory of the firm focusing on barriers to change abstract cooperative agreements between firms have become a significant phenomenon in the 1980s and have been analyzed by various approaches including economics organizational theory and business strategy this paper draws on these different strands of the literature to argue that cooperative agreements have led to focus the analysis of firms organization on the issue of change as a consequence cooperative agreements have contributed to recent developments of the theory of the firm in favor of competence based and evolutionary approaches the analysis is then extended to the case of multinational firms

a coevolutionary framework for analysing a transition to a sustainable low carbon economy this paper proposes a coevolutionary framework for analysing a transition to a sustainable low carbon economy based on the coevolution of ecosystems technologies institutions business strategies and user practices within a multi level micro meso macro perspective this builds on and develops previous coevolutionary analyses of long term technological and industrial change and recent renewed interest within ecological economics on coevolutionary approaches previous work has analysed how the coevolution of technologies and institutions has led to the lock in of current high carbon energy systems and how the coevolution of physical and social technologies and business strategies has brought significant material and welfare benefits to the minority of the world s population living in industrialised countries the coevolutionary framework proposed here may be used to undertake 1 detailed empirical analyses at a micro meso level of the challenges relating to the innovation and adoption of particularly low carbon technologies 2 as a framework for analysing the multi level interaction of social and technological elements within potential transition pathways to a low carbon energy system 3 to assess the implications for economic growth and prosperity of a transition to a low carbon economy and 4 to assist in the development of more formal multi level evolutionary economic models

inflation and inflation uncertainty in china abstractthe study examines the relationship between inflation and inflation uncertainty in china using generalized autoregressive conditional heteroscedasticity model particularly this link is investigated in china s urban and rural sectors motivated by the substantial urban rural divide the results provide strong statistical supportive evidence that higher inflation raises inflation uncertainty on the other hand evidence on the effect of inflation uncertainty on inflation is mixed depending on the sample periods and areas examined the understanding of inflation uncertainty nexus in china could provide implications to policymakers in the adoption of monetary policies

cyclical effects of government s employment and goods purchases distinguishing between the goods purchase and employee compensation components of government spending is important shocks to government goods purchases and shocks to government employment have the opposite effects on private output private employment and private investment moreover with this distinction in place quantitative analysis reveals that government spending is no longer a significant driving source of the u s business cycle on the contrary the components of government spending are procyclical in the u s data primarily because of their positive responses to the output fluctuations generated by technology shocks copyright 1998 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

explaining the attacker s advantage technological paradigms organizational dynamics and the value network abstract understanding when entrants might have an advantage over an industry s incumbent firms in developing and adopting new technologies is a question which several scholars have explained in terms of technological capabilities or organizational dynamics this paper proposes that the value network the context within which a firm competes and solves customers problems is an important factor affecting whether incumbent or entrant firms will most successfully innovate in a study of technology development in the disk drive industry the authors found that incumbents led the industry in developing and adopting new technologies of every sort identified by earlier scholars at component and architectural levels competency enhancing and competency destroying incremental and radical as long as the technology addressed customers needs within the value network in which the incumbents competed entrants led in developing and adopting technologies which addressed user needs in different emerging value networks it is in these innovations which disrupted established trajectories of technological progress in established markets that attackers proved to have an advantage the rate of improvement in product performance which technologists provide may exceed the rate of improvement demanded in established markets this mismatch between trajectories enables firms entering emerging value networks subsequently to attack the industry s established markets as well

sources procedures and microeconomic effects of innovation fabio arcangeli paul david frank engelman christopher freeman massimo moggi richard nelson luigi orsenigo nathan rosenberg michele salvati g n von tunzelman two anonymous referees and the participants at the meeting of the committee on distribution growth and technical progress of the italian national research council cnr rome november 16 1985 have helped with various redraftings a particularly grateful acknowledgment is for the insightful and patient help of moses abramovitz this work has been undertaken at the science policy research unit spru university of sussex as part of the research program of the designated research centre sponsored by the economic and social research council esrc earlier support to the research that led to this paper by the italian national research council cnr is also gratefully acknowledged the statistical research has been undertaken with the assistance of stephano brioschi ilaria fornari and giovannu prennushi

evolutionary theories in environmental and resource economics approaches and applications recent advances in evolutionary theory have important implications for environmental economics a short overview is offered of evolutionarythinking in economics subsequently major concepts and approaches inevolutionary biology and evolutionary economics are presented andcompared attention is devoted among others to darwinian selection punctuated equilibrium sorting mechanisms lamarckian evolution coevolution and self organization basic features of evolution such assustained change irreversible change unpredictability qualitativechange and disequilibrium are examined it is argued that there are anumber of fundamental differences as well as similarities betweenbiological and economic evolution next some general implications ofevolutionary thinking for environmental economics are outlined this isfollowed by a more detailed examination of potential uses ofevolutionary theories in specific areas of environmental economics including sustainability and long run development theories technologyand environment ecosystem management and resilience spatial evolutionand environmental processes and design of environmental policy

a political economy approach to the neoclassical gradualist model of transition a political economy approach to the neoclassical gradualist model of transition requires the exposition of what i define the primary elements of the model which are economic analysis definition of a good society speed political structure ideological structure and whether the initial conditions were incorporated in the model after the identification of the primary elements of the neoclassical gradualist model the next step is to identify secondary elements the desired changes with respect to price liberalization stabilization privatization institutional structure monetary policy and the financial system fiscal policy international trade and foreign aid and social policy the analytical framework developed makes possible to understand the neoclassical gradualist model from a new and more enlightening perspective we are better able to comprehend the complexities involved and the disagreements about the reform process the adoption of a gradual process of transition did not only involve specifying the required policies of a successful transition but also entailed a process a sequence by which the reforms should be introduced as such a process of transition consistent with the policies recommended by the neoclassical gradualists economists is developed the conclusion reveals the inconsistencies in the model copyright blackwell publishers ltd 2005

government spending and private consumption this paper investigates the macroeconomic effects of anticipations about future fiscal expenditures within a simple perfect foresight general equilibrium model this paper extends s djajic 1987 by investigating an anticipated permanent increase in government spending an anticipated permanent increase may temporarily stimulate capital accumulation the questions of whether anticipated or unanticipated changes in government spending have a larger effect on capital accumulation and output is related to the questions of whether government spending is initially above or below the optimal level

absorptive capacity socially enabling mechanisms and the role of learning from trial and error experiments a tribute to dan levinthal s contribution to international business research the concept of absorptive capacity ac of firms cohen and levinthal 1989 and 1990 is a foundational feature of organizational learning and adaptation that has had enormous influence in international business ib and innovation studies and management research in general in this tribute to dan levinthal we discuss the close connection between ac and learning two areas central to dan levinthal s research in relation to different contexts where ac comes into play in extant ib research we discuss four specific aspects of the nexus of ac and learning in the context of ib 1 bridging between intra and inter firm learning 2 a routine based framing of ac that emphasizes processes and capabilities underlying seeking assimilating and innovation in a global setting 3 the role of socially enabling mechanisms and 4 the logic of learning through trial and error experiments within firms and countries

micro and macro labor supply elasticities a reassessment of conventional wisdom the response of aggregate labor supply to various changes in the economic environ ment is central to many economic issues especially the optimal design of tax policies conventional wisdom based on studies in the 1980s and 1990s has long held that the analysis of micro data leads one to conclude that aggregate labor supply elasticities are quite small in this paper we argue that this conventional wisdom does not hold up to empirically reasonable and relevant extensions of simple life cycle models that served as the basis for these conclusions in particular we show that several pieces of conventional wisdom fail in the presence of human capital accumulation or labor supply decisions that allow for adjustment along both the extensive and intensive margin we conclude that previous estimates of small labor supply elasticities based on micro data are fully consistent with large aggregate labor supply elasticities jel d91 e24 j22

the level and uncertainty of inflation results from oecd forecasts bryce e kanago there is considerable evidence that inflation variability and the level of inflation are positively related across countries evidence of a within county relation is mixed evidence for a significant positive relation comes mostly from studies using some survey measure contrary evidence comes mostly from studies using regression errors our measure of uncertainty is the squared forecast error from organization for economic cooperation and development inflation forecasts most countries do not exhibit a positive and significant relation the greatest number of positive coefficients is for relative uncertainty regressed on contemporaneous inflation jel e310 e370 1342 1340 1323 i introduction although empirical studies have not reached a unanimous conclusion most economists believe one detriment of high inflation is the greater uncertainty it generates about future inflation affirmative evidence of a positive relation between inflation and uncertainty is most frequently found in cross country studies that regress some measure of variability or uncertainty for each country on their average inflation rate time series regressions for individual countries provide mixed results those time series studies that derive inflation uncertainty from a survey of forecasters conclude that higher inflation causes greater uncertainty time series studies that derive uncertainty from ex post regressions constructed by researchers provide most of the negative evidence 1 it is tempting to dismiss this negative evidence as the consequence of poorly or opportunistically constructed ex post forecasts in this paper we use annual inflation forecasts for organization for economic cooperation and development oecd countries that have been published in the oecd s economic outlook for about 30 years these data circumvent the problems of constructing forecasts after the fact for each date and each country a single forecast is provided by contrast survey data such as the livingston data average the forecasts of a number of respondents to the extent that the survey sample is representative of the population the surveys may provide a better approximation to the public s expectations however survey respondents have nothing to lose if their forecasts are wildly inaccurate whereas professional forecasters put their reputation on the line a distinct advantage of the published forecasts is that the oecd provides forecasts for 24 countries whereas surveys are available for only a few countries of course ex post forecasts could be constructed for the same set of countries while these ex post forecasts could utilize modern econometrics techniques such as autoregressive conditional heteroscedasticity arch and time varying parameters they cannot replicate the specialized human capital the judgment or the particular perspective of the times that were used to construct ex ante forecasts davis and kanago 1998 regressed the squared error from ex ante inflation forecasts produced and published by business international on inflation and found no significant relation for most countries this result makes it less tempting to dismiss the time series evidence of ex post inflation forecasts we extend the results of davis and kanago 1998 by computing the same regression but using squared errors from ex ante forecasts made by the oecd and published in economic outlook the 24 countries in the oecd data include canada iceland luxembourg new zealand the united states and turkey that are not included in the business international data for some countries the oecd data includes a few more years than the business international data the results from the oecd and business international data are broadly similar few countries show a significant relation between inflation and uncertainty we further test the robustness of these results by using relative uncertainty as the dependent variable

industrial districts old wine in new bottles harrison b 1992 industrial districts old wine in new bottles reg studies 26 469 483 according to the theory of industrial districts a new wave of economic growth is being led in a number of regions in europe north america and east asia by spatially concentrated networks of mostly small and medium sized enterprises often using flexible production technology and characterized by extensive local interfirm linkages does this amount to a re emergence of the dominance of what urban and regional economists call agglomeration economies over the well known pressures on business to spatially disperse its operations neoclassical economic theorizing from marshall to perroux provides one perspective on the contemporary industrial district phenomenon another is afforded by granovetter s more recent elaboration of the ideas of embedding under and over socialization confronting each of these theoretical approaches with the other leads me to conclude that the industrial district prototypes involv

adoption of agricultural innovations in developing countries a survey this paper reviews various studies which have provided a description and possible explanation to patterns of innovation adoption in the agricultural sector the survey points out that the tendency of many studies to consider innovation adoption in dichotomous terms adoption nonadoption may not be appropriate in many cases where the actual decisions are defined over a more continuous range more attention needs to be given to the socio cultural and institutional environment in area studies so that their interrelation with economic factors affecting adoption can be inferred the presence of several interrelated innovations is another aspect that needs to be considered more carefully in future research since a number of simultaneous decisions may be involved furthermore the possibility of regular sequential patterns in adopting components of a new technological package should be specifically addressed in future studies finally the impact of differential adoption rates on land holding distribution merits attention in future research

a theory of ambiguity credibility and inflation under discretion and asymmetric information this paper develops a positive theory of credibility ambiguity and inflation under discretion and asymmetric information the monetary policymaker maximizes his own politically motivated objective function that is positively related to economic stimulation through monetary surprises and negatively related to monetary growth the relative importance he assigns to each target shifts stochastically through time his current preference trade off is known to him but not to the public when choosing the state contingent path of money growth for the present and the future the policymaker compares the benefits from current stimulation with the costs associated with higher future inflation expectations current monetary growth conveys information to the public about future money growth because there is persistence in the policymaker s objectives although expectations are rational information is imperfect because monetary control procedures are imprecise as a result the public cannot correctly distinguish persistent changes of emphasis on different policy objectives from transitory monetary control errors the public becomes aware of changes gradually by observing past monetary growth credibility is defined in terms of the speed with which the public recognizes changes in the objectives of the policymaker credibility is lower the noisier monetary control and the more stable the objectives of the policymaker looser monetary control and a higher degree of time preference on the part of the policymaker induce him to produce higher and more variable monetary growth when the policymaker is free to determine the accuracy of monetary control he does not always choose the most effective control available in spite of the fact that monetary surprises always have an expected value of zero the reason is that ambiguous control procedures enable the policymaker to generate positive surprises when he cares more than on average about economic stimulation he leaves the inevitable negative surprises for periods in which he cares more about inflation prevention this result provides an explanation for the fed s preference for ambiguity recently documented by goodfriend 1986 the policymaker is more likely to pick more ambiguous control procedures the more uncertain his objectives and the higher his time preference the paper also provides a theoretical underpinning for the well documented crosscountry positive correlation between the level and the variability of inflation

evolutionary diffusion internal and external methods used to acquire encompassing complementary and incremental technological changes in the lithotripsy industry this study links theories concerning methods that firms use to acquire technology with theories concerning types of technological change we place particular emphasis on interorganizational relationships we predict that firms will often acquire know how needed for encompassing technological change through equity based arrangements with other organizations complementary technological changes through nonequity interorganizational arrangements and incremental changes through internal r d our theory draws on perspectives that emphasize the need to develop new competencies within a business organization and to protect the value of existing competencies our empirical analysis examines methods of technology acquisition that firms have used in the commercialization of medical lithotripters which are devices that fragment stones in the kidney and gall bladder the analysis contributes to a better understanding of how technology acquisition methods vary with the manner in which technological change relates to a firm s existing capabilities the study also helps develop our understanding of the evolutionary processes by which capabilities diffuse through an industry 1998 john wiley sons ltd

can fiscal spending stimulate private consumption abstract empirically government expenditure shocks seem to crowd in private consumption while neoclassical and new keynesian models predict crowding out we derive conditions under which a government in utility specification in a sticky price model helps to reconcile theory and evidence

is growth corrupted or bureaucratic panel evidence from the enlarged eu abstractthis article aims at analysing the issue of conditional convergence in the new enlarged european union eu over the period 1995 2012 by means of panel data techniques we examined the issue of conditional convergence in the enlarged eu giving particular attention to the effects of corruption and bureaucracy on growth controlling for a widely used set of explanatory variables such as investment domestic and foreign human capital formation inflation general government final consumption and trade openness furthermore we examine if growth responds differently to corruption and bureaucracy in the new eu members by means of two group specific interaction variables to capture possible different responses to corruption and bureaucracy the analysis reveals evidence of conditional convergence in the enlarged eu with investment share foreign direct investment human capital and country openness appearing as robust growth drivers in contrast inflation and government consumption rather hamper gro

channels of interstate risk sharing united states 1963 1990 we develop a framework for quantifying the amount of risk sharing among states in the united states and construct data that allow us to decompose the cross sectional variance in gross state product into several components which we refer to as levels of smoothing we find that 39 percent of shocks to gross state product are smoothed by capital markets 13 percent are smoothed by the federal government and 23 percent are smoothed by credit markets the remaining 25 percent are not smoothed we also decompose the federal government smoothing into subcategories taxes transfers and grants to states

firm entry markups and the monetary transmission mechanism abstract two business cycle models with endogenous firm and product entry are estimated by matching impulse responses to a monetary policy shock the competition effect implies that entry lowers desired markups and dampens inflation under translog preferences where the substitutability between goods depends on their number we find evidence of such an effect that model generates more countercyclical markups than dixit and stiglitz 1977 monopolistic competition model where price stickiness is the only source of markup fluctuations in contrast a model with strategic interactions between oligopolistic firms cannot generate an empirically relevant competition effect and is statistically equivalent to the dixit stiglitz model

consumption government spending and the real exchange rate using panel structural var analysis and quarterly data from four industrialized countries we document that an increase in government purchases raises output and private consumption deteriorates the trade balance and depreciates the real exchange rate this pattern of comovement poses a puzzle for both neoclassical and keynesian models an explanation based on the deep habit mechanism is proposed an estimated two country model with deep habits is shown to replicate well the observed responses of output consumption and the trade balance and the initial response of the real exchange rate to an estimated government spending shock

habit formation in consumption and its implications for monetary policy models this paper explores a monetary policy model with habit formation for consumers in which consumers utility depends in part on current consumption relative to past consumption the empirical tests developed in the paper show that one can reject the hypothesis of no habit formation with tremendous condence largely because the habit formation model captures the gradual hump shaped response of real spending to various shocks the paper then embeds the habit consumption specication in a monetary policy model and nds that the responses of both spending and inflation to monetary policy actions are signicantly improved by this modication jel d12 e52 e43

why does private consumption rise after a government spending shock recent empirical evidence suggests that private consumption is crowded in by government spending this outcome violates existing macroeconomic theory according to which the negative wealth effect brought about by a rise in public expenditure should decrease consumption

light emitting diodes and the lighting revolution the emergence of a solid state lighting industry emergence of new industries from evolving technologies is critical to the global economy yet has been relatively understudied due to the paucity of available data this study draws lessons on industry emergence by analyzing how a solid state lighting ssl industry grew out of light emitting diode led technologies that evolved for half a century with participation by tens of thousands of researchers in universities national laboratories and firms using data on publications patents and firms combined with business history we trace the evolution of ssl through a succession of market niches at times a few researchers with unorthodox research approaches made breakthroughs that greatly advanced particular technology trajectories and pushed led research in unexpected directions a succession of led market niches advanced the technology and provided profits to incentivize continuing research while reducing cost and improving efficacy of leds innovating firms developed a thicket of patents and captured substantial profit but were embroiled in extensive litigation that was ultimately resolved through cross licensing a major new generation of lighting products is now disrupting the traditional lighting industry although the leading incumbent lighting firms all invested early and heavily in ssl the industry s future leadership is uncertain

inflation and unemployment the world economy today is vastly different from the 1930s when seymour harris the chairman of this meeting infected me with his boundless enthusiasm for economics and his steadfast confidence in its capacity for good works economics is very different too both the science and its subject have changed and for the better since world war ii but there are some notable constants unemployment and inflation still preoccupy and perplex economists statesmen journalists housewives and everyone else the connection between them is the principal domestic economic burden of presidents and prime ministers and the major area of controversy and ignorance in macroeconomics i have chosen to review economic thought on this topic on this occasion partly because of its inevitable timeliness partly because of a personal interest reaching back to my first published work in 1941

market structure and cyclical fluctuations in u s manufacturing the relevance of imperfect competition for models of economic fluctuations has received increased attention from researchers in both macroeconomics and industrial organization the authors outline a new methodology for estimating industry markups of price over marginal cost and the influence of market structure on cyclical movements in total factor productivity measures of industry concentration import competition and unionization are important for explaining markups in some industry groups much of the estimated markup of price over marginal cost is accounted for by noncapital fixed costs finally the authors show that their estimated margins fluctuate substantially over the cycle in particular markups are countercyclical especially in concentrated durable goods industries copyright 1988 by mit press

endogenous market structures and the business cycle we propose a flexible prices model where endogenous market structures and search and matching frictions in the labor market interact endogenously the interplay between firms endogenous entry strategic interactions among producers and labor market frictions represents a strong amplification channel of technology shocks on labor market variables and helps addressing the unemployment volatility puzzle consistently with u s evidence new firms create a large fraction of new jobs and grow faster than more mature firms net firms entry is procyclical and the price mark up is countercyclical

using stock returns to identify government spending shocks this article explores a new approach to identifying government spending shocks which avoids many of the shortcomings of existing approaches the new approach is to identify government spending shocks with statistical innovations to the accumulated excess returns of large us military contractors this strategy is used to estimate the dynamic responses of output hours consumption and real wages to a government spending shock we find that positive government spending shocks are associated with increases in output hours and consumption real wages initially decline after a government spending shock and then rise after a year we estimate the government spending multiplier associated with increases in military spending to be about 1 5 over a horizon of 5 years

economics and the biologists a review of geerat j vermeij s nature an economic history this essay reviews and criticizes vermeij s nature an economic history and places it in the context of evolutionary economics vermeij presents a natural history written in what he considers economic terms and argues that biologists should know more about economics while the exchanges between economics and biology can sometimes be hazardous and misleading quite a bit could be learned by economists from reading this book

fiscal foresight and information flows news or foresight about future economic fundamentals can create rational expectations equilibria with non fundamental representations that pose substantial challenges to econometric efforts to recover the structural shocks to which economic agents react using tax policies as a leading example of foresight simple theory makes transparent the economic behavior and information structures that generate non fundamental equilibria econometric analyses that fail to model foresight will obtain biased estimates of output multipliers for taxes biases are quantitatively important when two canonical theoretical models are taken as data generating processes both the nature of equilibria and the inferences about the effects of anticipated tax changes hinge critically on hypothesized information flows different methods for extracting or hypothesizing the information flows are discussed and shown to be alternative techniques for resolving a non uniqueness problem endemic to moving average representations

institutional voids or organizational resilience business groups innovation and market development in latin america summary the paper compares the innovativeness of group affiliated firms gafs and standalone firms safs and it investigates how country specific institutional factors affect the group innovation relationship the paper analyzes the contrasting predictions of two competing views the institutional voids and the organizational resilience theses the empirical analysis focuses on a large sample of firms in latin america in line with the organizational resilience thesis the results point out that the superior innovation performance of gafs is stronger for national economies with more efficient financial legal and labor market institutions

inflation and inflation volatility in thailand abstractquarterly data for thailand are used in this article for the period 1965q3 2013q4 to investigate both the relationship between inflation and inflation volatility and the impact of inflation volatility on economic growth inflation volatility is estimated by deploying the generalized autoregressive conditional heteroscedastic garch technique a granger causality test is then conducted to examine the causality between inflation and inflation volatility the empirical results obtained are consistent with a number of theoretical propositions first the results are consistent with the friedman ball proposition which states that a rise in inflation raises inflation volatility second there is evidence supporting the holland proposition that inflation volatility lowers the rate of inflation this is consistent with the view that central banks attempt to stabilize inflation with the rise in inflation volatility third empirical results obtained by asymmetric garch models suggest that inflation shoc

the effects of fiscal shocks on employment and the real wage we study the transmission of fiscal shocks in the labor market we employ a structural var and base identification on the restrictions that shocks to government consumption investment and employment must raise output and deficits these restrictions hold in both prototype real business cycle rbc and new keynesian models shocks to government consumption and investment increase real wages and employment contemporaneously both at state level and in the aggregate the dynamics in response to employment shocks are mixed increases in government employment raise the real wage and total employment in the aggregate however in one third of the states they reduce total employment

chronicle of a war foretold the macroeconomic effects of anticipated defence spending shocks we identify us defense news shocks as shocks that best explain future movements in defense spending over a ve year horizon and are orthogonal to current defense spending our identied shocks are strongly correlated with the ramey 2011 news shocks but explain a larger share of macroeconomic uctuations and have signicant demand eects fiscal news induces signicant and persistent increases in output consumption investment hours and the interest rate standard dsge models fail to produce such a pattern we propose a sticky price model with distortionary taxation variable capital utilization capital adjustment costs and rule of thumb consumers that replicates the empirical ndings

economists models of learning abstract economic theorists have intensively studied learning in games and decisions over the last decade this essay puts some of the work in perspective and offers opinions about what still needs to be learned journal of economic literature classification numbers c73 d83

the relationship between inflation and inflation uncertainty in the uk 1885 1998 abstract using a long series of uk inflation data i have provided strong evidence in favour of the hypothesis that inflationary periods are associated with high inflation uncertainty this result supports the friedman ball hypothesis and has important implications for the inflation output relationship provided that more inflation uncertainty leads to lower output

housework and fiscal expansions in an otherwise standard business cycle model with housework calibrated consistently with data on time use we discipline complementarity between consumption and hours worked and relate its strength to the size of fiscal multipliers evidence on the substitutability between home and market goods confirms that complementarity is an empirically relevant driver of fiscal multipliers however in a housework model substantial complementarity can be generated without imposing a low wealth effect which contradicts the microeconomic evidence also explicitly modeling housework matters for assessing the welfare effects of government spending which are understated by theories that neglect substitutability between home produced and market goods

government spending and private consumption some international evidence this paper investigates the relationship between private consumption and publicly provided goods and services for a number of countries the empirical results show that in the aggregate private and government consumption are best described as complementary in the sense that an increase in one raises the marginal utility of the other the strength of this relationship is shown to be negatively affected by the government size these findings are robust across all specifications tried copyright 1994 by ohio state university press

reconsidering the bayh dole act and the current university invention ownership model abstract the bayh dole act of 1980 provided u s universities with the right to commercialize employees inventions made while engaged in government funded research this paper argues that the current university invention ownership model in which universities maintain de jure ownership of inventions is not optimal either in terms of economic efficiency or for advancing the social interest of rapidly commercializing technology and encouraging entrepreneurship we argue that this model is plagued by ineffective incentives information asymmetries and contradictory motivations for the university the inventors potential licensees and university technology licensing offices tlos these structural uncertainties can lead to delays in licensing misaligned incentives among parties and obstacles to the flow of scientific information and the materials necessary for scientific progress the institutional arrangements within which tlos are embedded have encouraged some of them to become revenue maximizers rather than facilitators of technology dissemination for the good of the entire society we suggest two alternative invention commercialization models as superior alternatives the first alternative is to vest ownership with the inventor who could choose the commercialization path for the invention for this privilege the inventor would provide the university an ownership stake in any returns to the invention the inventor would be free to contract with the university tlo or any other entity that might assist in commercialization the second alternative is to make all inventions immediately publicly available through a public domain strategy or through a requirement that all inventions be licensed non exclusively both alternatives would address the current dysfunctional arrangements in university technology commercialization

changing inflation dynamics and uncertainty in the united states garch estimation we investigate recent changes in the level persistence and uncertainty of u s inflation despite the great strides in lowering inflation in the 1980s and 1990s we find that uncertainty has risen palpably in the current decade this is disturbing given the aforementioned findings of the negative impact of inflation uncertainty on output moreover analyzing both the standard consumer price index cpi and the cpi minus energy our results suggest that volatile energy costs contribute to the higher inflation uncertainty in the united states in the current decade

a critical realist interpretation of evolutionary growth theorising the article discusses a critical realist interpretation of evolutionary growth theorising by focusing on some of its basic characteristics the evolutionary ontology is complex differentiated structured systemic open ever changing and radically uncertain its methodology tends to be increasingly based on appreciative theorising retroductive explanations and interdisciplinary analysis after discussing these features the article suggests that critical realism may indeed constitute an important philosophical and methodological foundation for the future development of evolutionary theories of economic growth

fiscal policy profits and investment this paper evaluates the effects of fiscal policy on investment using a panel of oecd countries we find a sizeable negative effect of public spending and in particular of its wage component on profits and on business investment this result is consistent with different theoretical models in which government employment creates wage pressure for the private sector various types of taxes also have negative effects on profits but interestingly the effects of government spending on investment are larger than those of taxes our results can explain the so called non keynesian i e expansionary effects of fiscal adjustments jel e22 e62

the relationship between inflation and inflation uncertainty in emerging market economies a standard generalized autoregressive conditional heteroskedastic q v model is employed to construct a measure of monthly inflation uncertainty in 12 emerging market economies and the relationship between inflation and inflation uncertainty is examined using granger causality tests the results suggest that higher inflation rates increased inflation uncertainty in all the economies providing strong support for the friedman hypothesis the evidence on the effect of inflation uncertainty on average monthly inflation is more mixed with increased inflation uncertainty leading to lower average inflation in colombia israel mexico and turkey consistent with the holland hypothesis but to higher average inflation in hungary indonesia and korea consistent with the hypothesis of cukierman and meltzer

what are the effects of fiscal policy shocks we propose and apply a new approach for analyzing the effects of fiscal policy using vector autoregressions specifically we use sign restrictions to identify a government revenue shock as well as a government spending shock while controlling for a generic business cycle shock and a monetary policy shock we explicitly allow for the possibility of announcement effects i e that a current fiscal policy shock changes fiscal policy variables in the future but not at present we construct the impulse responses to three linear combinations of these fiscal shocks corresponding to the three scenarios of deficit spending deficit financed tax cuts and a balanced budget spending expansion we apply the method to us quarterly data from 1955 to 2000 we find that deficit financed tax cuts work best among these three scenarios to improve gdp with a maximal present value multiplier of five dollars of total additional gdp per each dollar of the total cut in government revenue 5 years after the shock copyright 2009 john wiley sons ltd

a coevolutionary understanding of agroenvironmental change a case study of a rural community in brazil abstract this paper studies the coevolutionary ecological economic dynamics of agro environmental change the case study is santa rosa brazil and the modernization of subsistence agriculture followed by the more recent emergence of organic farming we use coevolution as an integrative framework for explaining how and why economic production changed over time in santa rosa in interdependence with the ecosystem resulting in a mosaic of diverse farm practices a coevolutionary framework expands the explanatory breadth of prevailing accounts of agro environmental change that rely on a notion of shifts from one singular homogeneous production economy to the next it unveils the complex processes driving agro environmental change instead of focusing on the structures resulting from it

developments in non expected utility theory the hunt for a descriptive theory of choice under risk this article reviews recent developments in the economic theory of individual decision making under risk since the 1950s it has been known that individual choices violate the standard model of expected utility in predictable ways considerable research effort has now been devoted to the project of developing a superior descriptive model following an overview of non expected utility theories which distinguishes between conventional and non conventional approaches the paper seeks to assess these alternative models in terms of empirical success using laboratory and field data and theoretical usefulness the closing sections reflect on some new directions emerging in this literature

the evolution of new industries and the determinants of market structure several empirical regularities concerning firm growth rates and industry firm size distributions have been developed by studying primarily mature industries the primary purpose of this article is to bring together and extend empirical regularities on the evolution of new industries and to use these regularities to gain further insight into the forces governing industry evolution to explain these regularities a model is constructed which emphasizes how factors governing the early evolution of industries may shape their market structure at maturity it stresses how chance events and exogenous factors that influence the number of potential entrants to the industry the growth rate of incumbents and the ease of imitation of industry leaders will influence the ultimate number and size distribution of firms in the industry

selection and variation in organizational evolution many organizational populations display increasing variation over time in characteristics thought to be central to survival as we show here for hard disk drive producers we develop a simple model that might account for this pattern in it technological advance follows a trajectory consistent with a proportionate random process akin to a gibrat process that favors technology leaders but only stochastically we demonstrate through computer simulations that evolution in an organizational population with selection favoring a characteristic evolving as a proportionate random process can under plausible conditions generate increased variation over time copyright 2012 the author 2011 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

media coverage of biotech foods and influence on consumer choice in the last two decades few issues in the global agrifood sector have attracted as much media attention as biotechnology thousands of brief and in depth articles have been written focusing on diverse issues from the spectacle of ecological disasters to the promise of feeding a burgeoning world population among those accounts of alleged health risks could influence consumer perceptions and behavior directly indeed reporters across the globe have continued to draw parallels between biotechnology and other known food hazards such as mad cow disease and chemical contaminants such as dioxin they have also continued to raise the possibility of unknown long term health effects essentially framing biotechnology as a food safety risk marks and kalaitzandonakes marks et al there is evidence that this broad and often negative media coverage of biotechnology has raised public awareness influenced public perceptions and altered the public agenda on biotech foods in europe and elsewhere bauer durant bauer and gaskell this is not surprising as over 90 of consumers receive information about agrifood biotechnology primarily through the popular press and television hoban and kendall despite the apparent influence of media coverage on public perceptions however the question of whether such coverage has also affected consumer purchasing behavior has not been answered the answer to this question is broadly relevant with less than 2 of the u s population now engaged in agricultural production the average food consumer has diminishing personal experience and knowledge of agriculture

fiscal policy in general equilibrium this paper studies four classic fiscal policy experiments within a quantitatively restricted neoclassical model the authors main findings are as follows 1 permanent changes in government purchases can lead to short run and long run output multipliers that exceed one 2 permanent changes in government purchases induce larger effects than temporary changes 3 the financing decision is quantitatively more important than the resource cost of changes in government purchases and 4 public investment has dramatic effects on private output and investment these findings stem from important dynamic interactions of capital and labor absent in earlier equilibrium analyses of fiscal policy copyright 1993 by american economic association

fiscal stimulus with spending reversals abstract the short run effects of fiscal policy depend not only on current tax and spending choices but also on expectations about future policy adjustment while general equilibrium models typically restrict medium term adjustment to taxation we highlight the importance of government spending dynamics first we provide time series evidence for the united states suggesting that an exogenous increase in government spending prompts a rise in public debt followed over time by a reduction in spending below trend second we show how expected spending reversals alter the short run impact of fiscal policy in a new keynesian model bringing it closer in line with the evidence

efficiency gains within firms under voluntary environmental initiatives this paper focuses on efficiency gains that voluntary environmental initiatives may achieve within the firm current debate concerning the extent and significance of inefficiencies within firms is critically important to the progress of energy and environmental policies several recent lines of inquiry in microeconomics help explain the persistence of inefficiencies within firms in addition two of the most prominent new approaches in the field of business strategy resource based strategy and the capabilities perspective focus on the heterogeneity among firms and the resulting pockets of inefficiency within firms they suggest at least three generic strategies for voluntary environmental initiatives challenging outdated organizational routines creating opportunities for differentiation or complementing firms resource investment trajectories these generic approaches suggest that there is considerable scope for further experimentation with voluntary environmental initiatives

accounting for changes in tastes health concerns are thought by many to have shifted consumption away from red meats though econometric evidence is mixed testing for structural change is difficult especially when one time series is used for both estimating demand equations and testing their stability specification errors may suggest a shift where none has occurred using nonparametric demand analysis we find that meat consumption patterns in the united states and australia can be explained using only relative prices and expenditures only imposing particular functional forms can reverse the conclusion suggesting that specification errors in econometric demand studies can account for findings of taste changes

recent evolutionary theorizing about economic change this famous passage from marshall s principles of economics it first appeared in the fifth edition which came out in 1907 nicely brings out two issues which are as germane to economics today as they were when marshall wrote the first is the heavy reliance by economists in their formal theorizing on the notion of equilibrium the other is the appeal that biological conceptions3x201d have for many economists particularly when their focus is on economic change

evolution in the finitely repeated prisoner s dilemma abstract this paper examines some aspects of evolutionary dynamic behavior in the finitely repeated prisoner s dilemma the fitness of cooperation found in the best known simulation of this type that by robert axelrod stems from strategy set restrictions the game used for the simulation has a continuum of pure cooperation equilibria and no pure defection equilibrium some new simulations are presented here for the finitely repeated game although cooperation is ultimately exploited and extinguished dynamic paths can pseudo converge in ways that allow partial cooperation to flourish for extended periods of time

knowledge and competitive advantage the coevolution of firms technology and national institutions this issue of jibs offers reviews of two books that analyse the dynamic interaction between the business environments and business strategies in very different ways the institutional underpinnings for business strategies are a major research topic for comparative management aiming to explain why in different contexts firms pursue different strategies and with different implications for performance j peter murman in knowledge and competitive advantage takes a historical perspective focusing on the co evolutionary processes between national innovation systems business strategies and performance this books thus adds to the industry level longitudinal research reviewed in jibs no 4 2003 tom murtha et al s managing new industry creation and david mckendrick et al s from silicon valley to singapore

firm entry excess capacity and endogenous productivity abstract we show that sluggish firm entry causes productivity to vary endogenously in response to technology shocks the endogenous productivity effect is caused by incumbent firms utilizing excess capacity as entry adjusts we develop a nonparametric model of endogenous sunk costs and monopolistic competition to show that imperfect competition and dynamic entry are necessary and jointly sufficient conditions for endogenous productivity fluctuations quantitatively we show the endogenous productivity effect is as large as that from a traditional capital utilization effect

sectoral systems of innovation and production the concept sectoral system of innovation and production provides a multidimensional integrated and dynamic view of sectors it is proposed that a sectoral system is a set of products and the set of agents carrying out market and non market interactions for the creation production and sale of those products a sectoral systems has a specific knowledge base technologies inputs and demand agents are individuals and organizations at various levels of aggregation they interact through processes of communication exchange co operation competition and command and these interactions are shaped by institutions a sectoral system undergoes change and transformation through the co evolution of its various elements 2002 elsevier science b v all rights reserved

fiscal shocks and their consequences this paper investigates the response of hours worked and real wages to fiscal policy shocks in the post world war ii us we identify these shocks with exogenous changes in military purchases and argue that they lead to a persistent increase in government purchases and tax rates on capital and labor income and a persistent rise in aggregate hours worked as well as declines in real wages the shocks are also associated with short lived rises in aggregate investment and small movements in private consumption we describe and implement a methodology for assessing whether standard neoclassical models can account for the consequences of a fiscal policy shock simple versions of the neoclassical model can account for the qualitative effects of a fiscal shock once we allow for habit formation and investment adjustment costs the model can also account reasonably well for the quantitative effects of a fiscal shock

wasted waste an evolutionary perspective on industrial by products abstract every production process gives rise to unintended outputs we argue that whether an output is desired or undesired is not given per se but depends on the economic circumstances which change over time as a result by products of one industry first perceived as non marketable wastes may become desired inputs into other production processes by adopting an evolutionary perspective on economic dynamics in particular by exploiting the concept of niche exclusion we identify favorable circumstances for undesired outputs to become marketable to cope with the pace and unpredictability of economic evolution we argue for a flexible policy system which favors outcome over process oriented waste management policies and balances the responsibility between consumers and producers on the one side and the society as a whole on the other side

schumpeterian dynamics part ii technological progress firm growth and economic selection abstract business firms strive for survival and growth they innovate in order to grow they imitate in order to survive the purpose of this paper the second in the series on schumpeterian dynamics is to construct a simple mathematical model which is capable of studying the evolution of an industry s state of technology as a dynamic outcome of the interactions among innovation imitation and capacity growth at the micro level of firms the doctrine of economic selection insists by means of the analogy to the biological theory of natural selection that only the most efficient firms will survive the long run competitive struggle for capacity growth indeed if neither innovation nor imitation is possible for the firm a firm or a group of firms which is lucky enough to start with the most efficient technology will outgrow all the other firms in the long run once however the possibility of technological imitation is allowed for the firms the industry will settle down to a static equilibrium of perfect technological knowledge not by the success of the most efficient firms in their striving for the higher growth rate but by the success of the less efficient in their effort to imitate the others the blind force of economic selection is thus outwitted by the human force of imitative activities finally when firms are allowed to innovate in their technology the selective force of market competition is no longer capable of weeding out the less fit even in the long run indeed it is shown in the present paper that the dynamic interplay of the processes of innovation imitation and growth will keep the industry s state of technology from settling down to the static equilibrium but reproduce in the long run a relative dispersion of efficiencies across firms in a statistically balanced form

public policies and changing boundaries of firms in a history friendly model of the co evolution of the computer and semiconductor industries in this paper we explore the effects of alternative policies ranging from antitrust to public procurement open standards information diffusion and basic research support on the dynamics of two vertically related industries in changing and uncertain technological and market environments the two industries are a system industry and a component industry and the evolution of these industries is characterized by periods of technological revolutions punctuating periods of relative technological stability and smooth technical progress we have been inspired by the co evolution of the computer and component industries from their inceptions to the 1980s on the basis of that evolution we have developed a history friendly model this co evolution in sum this paper has stressed that various types of policies may sometimes have contrasting effects on the industry mainly on concentration and technical change and innovation it has also shown that the consequences of policies may spillover from one industry to another and from one type of firms to another policies that aim at a specific industry may provoke major changes in a related industry through the product market the changing boundaries of firms or knowledge and technological interdependencies the policy maker has to be aware of that finally a major point of the paper regards the unintended consequences of policies

beyond demand and supply curves in macroeconomics this paper surveys recent issues in macroeconomics from the viewpoint of dynamic economic theory the need to look beyond demand and supply curves and the insights that come from doing so are emphasized examples of issues in debt management and fiscal policy are analyzed

systems competition and network effects this paper discusses firm behavior market performance and the public and private institutions that arise in systems markets i e markets where consumers use compatible components together to generate benefits in such markets which include communications networks and hardware software networks popular products are inherently more valuable these network effects can drive corporate strategies and are critical in understanding innovation in many high technology markets the discussion here emphasizes the dynamics of consumer adoption decisions in the presence of network effects competition between incompatible systems and how suppliers choose which components are compatible and which are not

on inflation and inflation uncertainty in the g7 countries abstract the relationship between inflation and inflation uncertainty is investigated in the g7 countries from 1948 to 1993 garch models are used to generate a measure of inflation uncertainty and then granger methods are employed to test the causality between average inflation and inflation uncertainty in all g7 countries inflation significantly raises inflation uncertainty as predicted by friedman and ball weaker evidence is found that inflation uncertainty granger causes inflation in three countries us uk and germany increased inflation uncertainty lowers inflation while in two countries japan and france increased inflation uncertainty raises inflation

government spending entry and the consumption crowding in puzzle this article documents empirically that net firm entry robustly rises after a u s government spending expansion we use this new finding to test the empirical validity of various model features that have been proposed to generate consumption crowding in after positive expenditure shocks endogenous entry models typically fail to generate the observed joint increase in consumption and entry model features that dampen the wealth effect such as rule of thumb households or complementarity between labor and consumption in preferences tend to reduce entry we show that utility or productivity enhancing public spending can reconcile the model with our documented fact and performs well empirically

introduction to the special issue on agent based computational economics abstract a brief overview of agent based computational economics ace is given followed by a synopsis of the articles included in this special issue on ace and in a companion special issue on ace scheduled to appear in computational economics

inflation and uncertainty tests for temporal ordering for the postwar united states increases in the rate of inflation tend to precede increases in the level of inflation uncertainty the finding suggests that higher inflation uncertainty is part of the welfare cost of inflation possible explanations are 1 a high rate of inflation increases uncertainty about future monetary policy and 2 there is uncertainty about the persistence of inflation copyright 1995 by ohio state university press