growing sub systems vertically hyper integrated sectors and the labour theory of value the author starts from piero sraffa s notion of subsystem and from his own notion of vertically integrated sector and goes on to a complete generalization to dynamic analysis a production system is partitioned into a set of self contained growing subsystems each of which compactly considered is characterized by one single unit of consumption good at one extreme and one single labor coefficient at the other extreme a vertically hyper integrated sector this logical construction is shown to possess remarkable analytical and normative properties particularly suitable for dynamic analysis among these properties a complete generalization is obtained of ada m smith s pure labor theory of value copyright 1988 by oxford university press

labor productivity and the law of decreasing labor content this paper analyzes labor productivity and the law of decreasing labor content ldlc originally formulated by farjoun and machover 1983 first it is shown that the standard measures of labor productivity may be rather misleading owing to their emphasis on monetary aggregates instead the conventional classical marxian labor values provide the theoretically and empirically sound measures of labor productivity the notion of labor content and the ldlc are therefore central in order to understand the dynamics of capitalist economies second some rigorous theoretical relations between different forms of proflt driven technical change and productivity are derived in a general input output framework with flxed capital which provide deterministic foundations to the ldlc third the main theoretical propositions are analyzed empirically based on a new dataset of the german economy

the so called transformation problem revisited a brief comment this comment deals with lipietz s presentation of a solution which had been proposed to the transformation problem lipietz s account can be criticized in two respects first his attempt to integrate the familiar morishima type approach with the newer one is based on a confusion between the conceptual and factual determination of the value of labor power second his demonstration of the mathematical conditions for the validity of the new interpretation rests on an inappropriate conceptualization of the price and quantity mechanisms associated with capitalist competition moreover his results could not be applied to a more general framework which took account for example of joint production

does deposit insurance retard the development of non bank financial markets whether and how the introduction of deposit insurance affects non bank financial market development depends on whether banks and non bank financial markets are substitutes or complements and theory has conflicting views using data on 134 countries over a 28 year period and several identification strategies we find that the introduction of deposit insurance retards the equity market the non bank depositaries sector and the banking sector when law and order is weak while strong law and order mitigates this effect it does not lead to a positive outcome for all markets for non bank financial markets the effect is greater in the long run so that while deposit insurance increases banking sector development in the long run it retards non bank financial markets regardless of the level of law and order finally several design features exacerbate the negative outcomes our results have important policy implications for implementing or altering deposit insurance schemes

approximate surrogate production functions the cambridge debate showed that an aggregation of capital is not possible in general a recent investigation has found one example for reswitching and several for reverse capital deepening but the paradoxes appear to be infrequent the paper provides a theoretical justification of this result and shows how wage curves of input output matrices with small non dominant eigenvalues become quasi linear with some numeraires large random systems lead to the genesis of such states approximate surrogate production functions then seem possible a family of economic systems with constant capital composition allows construction of a surrogate production function copyright oxford university press

firm dynamics and financial development abstract using comprehensive firm level datasets this paper studies the impact of cross country variation in financial market development on firms financing choices and growth in less financially developed economies small firms grow faster and have lower leverage than large firms as financial development improves the growth difference between small and large firms shrinks while the leverage difference rises the paper then develops a quantitative model where financial frictions drive firm growth and debt financing through the availability of credit and default risk the model explains the observed cross country variations in firm size leverage and growth in response to changes in financial frictions

why doesn t technology flow from rich to poor countries what determines the technology that a country adopts while there could be many factors the e ciency of the country s nancial system may play a signi cant role to address this question a dynamic contract model is embedded into a general equilibrium setting with competitive intermediation the ability of an intermediary to monitor and control the cash ows of a rm plays an important role in a rm s decision to adopt a technology can such a theory help to explain the

age effects leverage and firm growth abstract recent theories of firm dynamics emphasize the role of financial variables as determinants of firm growth empirically examining these relationships has been difficult since there is a lack of financial data on the small young and private firms using a unique administrative data set this paper considers the growth of new firms in canadian manufacturing from a financial perspective we find that financial factors such as leverage and initial financial size impact growth rates for new firms further the inclusion of leverage has little impact on the economic significance of the conditional age and size relationships with firm growth

market motives distinctive capabilities and domestic inertia a hybrid model of innovation generation the authors develop and test a model of innovation in which the generative process of innovation is fostered by a balance of three forces market motives distinctive capabilities and domestic ine

nash and stackelberg solutions in a differential game model of capitalism abstract this paper examines two noncooperative open loop solution concepts in a simple model of economic growth and distribution formulated as a differential game between workers who may save or consume and capitalists who may consume or invest it is demonstrated that both players prefer the stackelberg game to the nash game furthermore it is shown that under fairly realistic assumptions about the parameters of the model both workers and capitalists would prefer to act as the follower in the stackelberg game this means that capitalism is in a stalemate i e in a position where neither class wants to take the initiative and announce its strategy first the result is interpreted as an explanation of the difficulties met in designing and implementing incomes policies and social contracts

a classical model of the class struggle a game theoretic approach the class struggle is formalized as a differential game in a strictly supply side model an approach that synthesizes the models of lancaster and goodwin four different steady state equilibria are derived each corresponding to different assumptions about the degree to which each class is organized to promote its own interests in particular the goodwin growth cycle is shown to emerge from a world characterized by unorganized capitalists and workers in which individuals ignore the effects of their own actions on economywide variables more relevant for discussion of modern capitalism are the hierarchical equilibria especially the codetermination equilibrium in which the existence of a full employment equilibrium turns out to be problematic finally comparative statics results suggest that the incentives for technological change differ widely among the four regimes

economic growth and conflict over the distribution of income abstract a thorough analysis of economic growth inflation and fluctuations resulting from the class struggle is presented the paper begins with the formulation of an extended predator prey model and pays attention to population growth technical progress differential saving consumption out of wealth trade union activity inflation labour hoarding affluence and the inherent contradictions of capitalism the paper proceeds with a neo classical reformulation to allow for smooth substitution possibilities in production and for time taken to recruit and fire labour an alternative extension of the model based on maximising the reduction in unit costs subject to kaldor s technical progress function is also provided

technological regimes and schumpeterian patterns of innovation this paper proposes that the specific pattern of innovative activities in an industry can be explained as the outcome of different technological learning regimes a technological regime is defined by the particular combination of technological opportunities appropriability of innovations cumulativeness of technical advances and properties of the knowledge base building upon the distinction between schumpeter mark i and schumpeter mark ii industries this paper provides empirical estimates of the relationships between indicators of the schumpeterian patterns of innovation concentration of innovative activities stability in the hierarchy of innovators and importance of new innovators and indicators of the variables defining technological regimes

taxes and financial frictions implications for corporate capital structure abstract according to data from compustat we observe three general trends between 1980 and 2012 first firms have been reducing their reliance on debt as leverage ratios have fallen and an increasing fraction of firms are now actually net lenders second the frequency at which firms neither issue external equity nor distribute dividends to shareholders has fallen third marginal corporate income tax rates have fallen significantly as well using compustat balance sheet data we structurally estimate a model in which heterogeneous firms finance investment with equity and debt our model incorporates costly external finance as well as a detailed tax structure including personal dividend and corporate income taxes we conclude that there has been a significant reduction in the cost of external equity while overall leverage ratios have fallen mainly because of a lower tax advantage of debt

breakthroughs deadlines and self reported progress contracting for multistage projects we study the optimal incentive schemes for multistage projects staged financing pervasive in both venture capital and research grants arises as a feature of the optimal contract the nature of progress plays an important role when progress is tangible incentives are provided through a series of deadlines and a reward scheme that decreases over time early progress in one stage gives the agent more time and funding to complete the next one when progress is intangible unverifiable progress reports are used despite the fact that the information in the report has no social value the optimal contract involves a soft deadline wherein the principal guarantees funding up to a certain date if the agent reports progress at that date then the principal gives him a relatively short deadline to complete the project if not then a probationary phase begins in which the project is terminated at a constant rate until progress is reported we explore the implications for welfare and optimal project design

dynamic financial constraints distinguishing mechanism design from exogenously incomplete regimes we formulate and solve a range of dynamic models of constrained credit insurance that allow for moral hazard and limited commitment we compare them to full insurance and exogenously incomplete financial regimes autarky saving only borrowing and lending in a single asset we develop computational methods based on mechanism design linear programming and maximum likelihood to estimate compare and statistically test these alternative dynamic models with financial information constraints our methods can use both cross sectional and panel data and allow for measurement error and unobserved heterogeneity we estimate the models using data on thai households running small businesses from two separate samples we find that in the rural sample the exogenously incomplete saving only and borrowing regimes provide the best fit using data on consumption business assets investment and income family and other networks help consumption smoothing there as in a moral hazard constrained regime in contrast in urban areas we find mechanism design financial information regimes that are decidedly less constrained with the moral hazard model fitting best combined business and consumption data we perform numerous robustness checks in both the thai data and in monte carlo simulations and compare our maximum likelihood criterion with results from other metrics and data not used in the estimation a prototypical counterfactual policy evaluation exercise using the estimation results is also featured

agency and optimal investment dynamics agency problems limit firms access to capital markets curbing investment firms and investors seek contractual ways to mitigate these problems what are the implications for investment we present a theory of a firm s investment dynamics in the presence of agency problems and optimal long term financial contracts we derive results relating firms investment decisions current and past cash flows firm size capital structure and dividends among the results optimal investment is increasing in current and past cash flow and optimal investment is positively serially correlated over time after controlling for investment opportunities these results hold for a range of agency problems jel g30 g31 g32 g35 d82 d86 d92 copyright 2007 oxford university press

large firm dynamics and the business cycle do large firm dynamics drive the business cycle we answer this question by developing a quantitative theory of aggregate fluctuations caused by firm level disturbances alone we show that a standard heterogeneous firm dynamics setup already contains in it a theory of the business cycle without appealing to aggregate shocks we offer an analytical characterization of the law of motion of the aggregate state in this class of models the firm size distribution and show that aggregate output and productivity dynamics display i persistence ii volatility and iii time varying second moments we explore the key role of moments of the firm size distribution and in particular the role of large firm dynamics in shaping aggregate fluctuations theoretically quantitatively and in the data

the relationship between firm growth size and age estimates for 100 manufacturing industries this study uses a sample of all firms operating in 100 manufacturing industries to examine some aspects of firm dynamics it finds that firm growth the variability of firm growth and the probability that a firm will fail decrease with firm age it also finds that firm growth decreases at a diminishing rate with firm size even after controlling for the exit of slow growing firms from the sample gibrat s law therefore fails although the severity of the failure decreases with firm size copyright 1987 by blackwell publishing ltd

solving the feldstein horioka puzzle with financial frictions unlike the prediction of a frictionless open economy model long term average savings and investment rates are highly correlated across countries a puzzle first identified by feldstein and horioka 1980 we quantitatively investigate the impact of two types of financial frictions on this correlation one is limited enforcement w here contracts are enforced by the threat of default penalties the other is limited spanning where the only asset available is noncontingent bonds we find that the calibrated model with both frictions produces a savings investment correlation and a volume of capital flows close to the data to solve the puzzle the limited enforcement friction needs low default penalties under which capital flows are much lower than those in the data and the limited spanning friction needs to exogenously restrict capital flows to the observed level when combined the two frictions interact to endogenously restrict capital flows and thereby solve the feldstein horioka puzzle

cross sectoral variation in the volatility of plant level idiosyncratic shocks we estimate the volatility of plant level idiosyncratic shocks in u s manufacturing we measure the variation in revenue total factor productivity not explained by either industry or economy wide factors or by establishments characteristics we find that idiosyncratic shocks are much larger than aggregate shocks accounting for about 80 of the overall uncertainty faced by plants plants in the most volatile sector are subject to about six times as much idiosyncratic uncertainty as plants in the least volatile we provide evidence suggesting that idiosyncratic risk is higher in industries where the extent of creative destruction is likely to be greater

understanding the marxian notion of exploitation a summary of the so called transformation problem between marxian values and competitive prices the ending in the second part of the article the author examines the so called problem of transformation first he analyze certain contradiction faced by marx in the third volume of capital in studying the question of how to transform the cost into the price then he turns to the problem of inverse transformation and argues that marx procedure works only in a single case equal organic composition of capital the third part of the article bibliography provides an overview of the work on the analysis of marx s theory

innovation waves self organized criticality and technological convergence abstract the purpose of this paper is to investigate the evolutionary process of imitation and innovation as a process of searching in a given neighbourhood of firms the spreading of information through neighbourhoods allows firms to acquire knowledge leading to innovation waves followed by imitation as firms attempt to glean information on best practise techniques whilst innovators are temporarily allowed to reap quasi rents the imitative band wagon effect drives the profit rate down to its normal level productivity growth lowers the prices of sectors involved in the process of technological advance causing obsolescence and creative destruction in a schumpeterian sense

the transformation problem abstract the history of the marxian transformation problem is surveyed from 1885 to the present particular emphasis is placed on the less well known literature and the focus is on problems of interpretation rather than on technicalities a substantial bibliography is provided

the estimation of barone curves based on the iwai model abstract based on the evolutionary model of iwai the authors show that the supply curve of barone can be interpreted as an outcome of the dynamic process of schumpeterian competition by using empirically given distributions of profits the barone curve can be estimated significantly for different industries of the federal republic of germany in this respect the paper at hand not only provides a strong argument for the validity of the iwai model but also gives important insights into the individual forces of schumpeterian competition and their impact on the market structures in an economy

dynamic security design convergence to continuous time and asset pricing implications an entrepreneur with limited liability needs to finance an infinite horizon investment project an agency problem arises because she can divert operating cash flows before reporting them to the financiers we first study the optimal contract in discrete time this contract can be implemented by cash reserves debt and equity the latter is split between the financiers and the entrepreneur and pays dividends when retained earnings reach a threshold to provide appropriate incentives to the entrepreneur the firm is downsized when it runs short of cash we then study the continuous time limit of the model we prove the convergence of the discrete time value functions and optimal contracts our analysis yields rich implications for the dynamics of security prices stock prices follow a diusion reflected at the dividend barrier and absorbed at zero their volatility as well as the leverage ratio of the firm increase after bad performance stock prices and book tomarket ratios are in a non monotonic relationship a more severe agency problem entails lower price earning ratios and firm liquidity and higher default risk

stochastic house appreciation and optimal mortgage lending w e characterize the optimal mortgage contract in a continuous time setting with stochastic growth in house price and income costly foreclosure and a risky borrower who requires incentives to repay his debt we show that many features of subprime loans can be consistent with properties of the optimal contract and that when house prices decline mortgage modification can create value for borrowers and lenders our model provides a number of empirical predictions that relate the features of mortgage contracts originated in a housing boom and the extent of their modification in a slump to location and borrowers characteristics jel g20 g21 g33

a macroeconomic approach to corporate capital structure abstract the cross sectional distribution of corporate capital structure and its macroeconomic implications are underexplored research areas this paper embeds a dynamic trade off theory of firm financing into a general equilibrium model with firm dynamics i find that the stationary equilibrium replicates fairly well the distribution of leverage as well as the relationship between leverage size and profitability the counterfactual experiment points out relatively small effects of tax benefits on corporate capital structure it also implies that the effects of the default cost on macroeconomic variables are almost negligible under endogenous capital structure choice

corporate debt structure and economic recoveries abstract this paper analyzes the business cycle behavior of the corporate debt structure and its interaction with economic recovery the debt structure is measured as the share of bonds in the total credit to non financial corporations for a quarterly panel of countries over the period 1989 2013 we first show that the substitution of loans for bonds in recoveries is a regular property of business cycles secondly we provide evidence that economies with high bond share and important bond loan substitution recover from the recessions faster this identified link between corporate debt structure and business cycles is robust to the inclusion of traditional factors which shape recessions and recovery such as the size and the quality of financial markets the occurrence of bank crisis the dynamics of credit and the distribution of firm size

optimal mortgage design this article studies optimal mortgage design in a continuous time setting with volatile and privately observable income costly foreclosure and a stochastic market interest rate we show that the features of the optimal mortgage are consistent with an option adjustable rate mortgage option arm under the optimal contract the borrower is given discretion of how much to repay until his balance reaches a certain limit the default rates and interest rate payment on the mortgage correlate positively with the market interest rate gains from using the optimal contract relative to simpler mortgages are the biggest for those who face more income variability buy pricey houses given their income level or make little or no down payment our model thus may help to explain a high concentration of option arms among riskier borrowers jel g20 g21 g33

optimal annuitization with stochastic mortality and correlated medical costs the conventional wisdom since yaari 1965 is that households without a bequest motive should fully annuitize their investments numerous frictions do not break this sharp result we modify the yaari framework by allowing a household s mortality risk itself to be stochastic due to health shocks a lifetime annuity still helps to hedge longevity risk but the annuity s remaining present value is correlated with medical costs such as those for nursing home care thereby reducing annuity demand even without ad hoc liquidity constraints we find that most households should not hold a positive level of annuities and many should hold negative amounts jel d14 d82 g23 i12 j14 j26

marx s transformation problem and pasinetti s vertically integrated subsystems pasinetti 1988 constructs a complete generalization of marx s transformation problem in the context of a non uniform growth model by proving that production prices are not proportional to the physical quantities of labour supplied to vertically hyper integrated subsystems pasinetti therefore restricts the labour theory of value to a pre institutional stage of analysis in this paper i demonstrate that the transformation problem dissolves once we consider the vertically integrated subsystems induced by the specific institutional setup of a capitalist economy i prove that production prices both in steady state and non uniform growth models are proportional to the physical quantities of labour supplied to vertically super integrated subsystems in consequence the labour theory of value suitably generalized also applies at the institutional stage of analysis

one million miles to go taking the axiomatic road to defining exploitation this paper analyses the marxian theory of exploitation a general axiomatic approach is developed which is appropriate to study the concept of exploitation what it is and how it should be captured empirically two properties are presented that capture some fundamental marxian insights it is shown that contrary to the received view there exists a nonempty class of definitions of exploitation that preserve the relation between exploitation and profits called profitexploitation correspondence principle in general economies with heterogeneous agents complex class structures and production technologies with heterogeneous labour inputs however among the main approaches only the so called new interpretation satisfies the profitexploitation correspondence principle in general jel b51

a re in statement of the labour theory of value this paper surveys and argues for an account of labor values and prices in the marxian tradition that is not subject to the usual criticisms concerning their conceptual coherence and empirical relevance this reformulation first suggested independently of each other by g dumeenil and d k foley provides a powerful account that overturns almost a century of misconceived orthodoxy in doing so it enables a theoretically coherent account of the value of labor power and an empirical account of the fundamental categories of capitalism copyright 1994 by oxford university press

schumpeterian dynamics an evolutionary model of innovation and imitation abstract this paper develops a simple evolutionary model of innovation and imitation it analyzes how dynamic interactions between equilibrating force of imitation and disequilibrating force of innovation mold the evolutionary pattern of an industry s state of technology and shows that in this schumpeterian world the industry will never approach a neoclassical equilibrium with perfect knowlwdge even in the long run the paper also examines the steady state efficiency distribution of firms that characterizes the industry s long run and obtains some comparative dynamics results

financial frictions investment and tobin s q we develop a model of investment with financial constraints and use it to investigate the relation between investment and tobin s a firm is financed partly by insiders who control its assets and partly by outside investors when their wealth is scarce insiders earn a rate of return higher than the market rate of return i e they receive a quasi rent on invested capital this rent is priced into the value of the firm so tobin s is driven by two forces changes in the value of invested capital and changes in the value of the insiders future rents per unit of capital this weakens the correlation between and investment relative to the frictionless benchmark we present a calibrated version of the model which due to this effect generates realistic correlations between investment a nd cashflow

a new database on the structure and development of the financial sector this article introduces a new database of indicators of financial structure and financial development across countries and over time the database is unique in that it combines a wide variety of indicators that measure the size activity and efficiency of financial intermediaries and markets it improves on previous efforts by presenting data on the public share of commercial banks introducing indicators of the size and activity of nonbank financial institutions and constructing measures of the size of bond and primary equity markets this article introduces a new database the first to provide comprehensive measures of the development structure and performance of the financial sector this database is the first to define and construct indicators of the size and activity of nonbank financial intermediaries such as insurance companies pension funds and non deposit money banks it is also the first to include indicators of the size of primary equity markets and primary and secondary bond markets in constructing the database authors carefully deflate measures and match stock and flow variables

liquidity default liquidity management and smooth dividends policy abstractour article models liquidity financing constraints with the real options framework by conducting a comprehensive investigation of the effects of shocks to liquidity constraints on the firm s optimal investment financing and dividend policies our model highlights the importance of liquidity management and extends the liquidity management approach to hedge liquidity default risk we find that being concerned about liquidity default risk will significantly change a firm s behaviours including those related to investment and the optimal capital structure a firm that is concerned about its liquidity default risk will become more cautious it will choose to delay investment and have higher leverage when internal liquidity is very low but choose earlier investment and lower leverage when liquidity is high enough the dividends policy can alleviate risks from both the external market and internal project volatility and provides an alternative explanation for the smooth dividends policy puzzle comm

beyond replicator dynamics innovation selection dynamics and optimal diversity we propose a new evolutionary approach to model technological change based on an extension of replicator dynamics with recombination and mutation it gives rise to interactive innovation selection dynamics the model allows studying the combined effects of selection and variety generation on evolutionary economic change the developed framework describes a population of boundedly rational entrepreneurs who decide each period on the allocation of investments in different production technologies they tend to invest in belowaverage cost technologies just as under replicator dynamics in addition they spend a constant fraction of investments captured by mutation and recombination rates on alternative technologies and research on recombinant innovation as opposed to most previous studies mutation and recombination are here conceptual variables with a concrete behavioral interpretation namely describing the decision rules heuristics of investors we compare the dynamics of shares of investments in various technologies for three cases with constant costs of capital with costs decreasing steadily and exogenously over time and with costs depending on the level of cumulative investments for each model version we examine under which conditions the coexistence of technological options is feasible and optimal in terms of minimising the average cost of investments authors abstract

financial integration and international risk sharing abstract conventional wisdom suggests that financial liberalization can help countries insure against idiosyncratic risk there is little evidence however that countries have increased risk sharing despite widespread financial liberalization we show that the key to understanding this puzzling observation is that conventional wisdom assumes frictionless international financial markets while actual markets are far from frictionless financial contracts are incomplete and contract enforceability is limited when countries remove official capital controls default risk is still present as an implicit barrier to capital flows if default risk were eliminated capital flows would be six times greater and international risk sharing would increase substantially

large risks limited liability and dynamic moral hazard we study a continuous time principal agent model in which a risk neutral agent with limited liability must exert unobservable effort to reduce the likelihood of large but relatively infrequent losses firm size can be decreased at no cost or increased subject to adjustment costs in the optimal contract investment takes place only if a long enough period of time elapses with no losses occurring then if good performance continues the agent is paid as soon as a loss occurs payments to the agent are suspended and so is investment if further losses occur accumulated bad performance leads to downsizing we derive explicit formulae for the dynamics of firm size and its asymptotic growth rate and we provide conditions under which firm size eventually goes to zero or grows without bounds

growth cycles with induced technical change this paper concerns itself with two related topics the relative shares of workers and capitalists in the national income and the labour augmenting bias of technical change both have been dealt with in contrasting fashion in two seminal papers on distribution theory kennedy i964 attempts to explain the then observed constancy of relative shares with the help of the now famous invention possibility frontier however the wage and profit rates are exogeneous to his model goodwin i967 on the other hand presents a model of cycles in growth rates in which the share of labour the wage rate and the profit rate are endogenously determined however unlike the kennedy analysis technical change is assumed to be constant and exogeneously given given that these pioneering works have addressed themselves to important questions it seems a worthwhile task to build a model in which the shares of labour and capital the wage rate the profit rate and technical change are all endogenously determined the perspective we have chosen here introduces the key element of kennedy s perception induced technical change into the goodwin scheme and the consequences of so doing are traced out in the following terse account there are two classes in the economy workers and capitalists only one good q t is produced and it can be either consumed or invested capital stock k t is homogeneous and for simplicity also assumed to be non depreciating the capital output ratio at time t is denoted by o t labour i t is also homogeneous and its productivity at time t a t q t l t improves at the rate ac t labour s share in the national income denoted by u t is

a theory of financing constraints and firm dynamics there is widespread evidence supporting the conjecture that borrowing constraints have important implications for firm growth and survival in this paper we model a multiperiod borrowing lending relationship with asymmetric information we show that borrowing constraints emerge as a feature of the optimal long term lending contract and that such constraints relax as the value of the borrower s claim to future cash flows increases we also show that the optimal contract has interesting implications for firm dynamics in agreement with the empirical evidence as age and size increase mean and variance of growth decrease and firm survival increases

value price and exploitation the logic of the transformation problem this paper tries to clarify the logical structure of the relationship between labor values and prices from an axiomatic perspective the famous transformation problem is interpreted as an impossibility result for a specific interpretation of value theory based on specific assumptions and definitions a comprehensive review of recent literature is provided which shows that there are various theoretically relevant and logically consistent alternative interpretations based on different assumptions and definitions

bite me abc s shark tank as a path to entrepreneurship business pitch competitions provide early stage finance and mentoring for entrepreneurs in this paper we analyze data from the most public high stakes pitch competition in the usa abc s shark tank we construct a dataset comprising all entrepreneurs firms that have aired between august 2009 and may 2016 our findings 1 funding on the show seems to relax an internal financial constraint rather than signal the quality of the venture to potential outside investors 2 to the extent that the latter is occurring there is plausible evidence that the signaling effect works in an unexpected direction for women entrepreneurs it may crowd out attention from potential investors 3 while it is fairly clear that this pitch competition is associated with longer run existence of firms it has no significant impacts on innovation 4 there are no consistent differential impacts on racial ethnic minorities these findings complement the literature on the impact of pitch competitions and early access to finance

technological change and market structure an evolutionary approach this paper studies an inter temporal market context in which firms innovate imitate and compete in quantities and technological choices each period potential entrants enter if there are profitable opportunities incumbent firms exit when they go bankrupt the key aspect of the model is that technological change evolves along a directed graph this graph reflects both the direction of technological change and the magnitude of costs involved in switching technologies in this set up my main concern is to explore the implications of different technological structures on entry exit dynamics and on the evolution of market characteristics market concentration profitability variance etc

evolutionary modelling of the macro economic impacts of catastrophic flood events this paper examines the possible contribution of evolutionary economics to macro economic modelling of flood impacts to provide guidance for future economic risk modelling most macro economic models start from a neoclassical economic perspective and focus on equilibrium outcomes either in a static or dynamic way and describe economic processes at a high level of aggregation as a consequence they typically fail to account for the complexity of social interactions and other behavioural responses of consumers and producers to disasters which may affect the macroeconomic impacts of floods employing evolutionary principles and methods such as agent based modelling may help to address some of the shortcomings of current macro economic models we explore and discuss the implications of applying consumer and producer heterogeneity bounded rationality network effects social and technological learning co evolution and adaptive policy making concepts into existing economic frameworks for the assessment of macro economic impacts of floods authors abstract

class and exploitation in general convex cone economies abstract in this paper we examine what appropriate formulations for labor exploitation are in order to explain the emergence of class and exploitation status in capitalist economies given the well known controversy pertaining to plausible formulations for labor exploitation in joint production economies we propose an axiom axiom for labor exploitation le which every appropriate formulation of labor exploitation should satisfy using this axiom the necessary and sufficient condition for plausible formulations of labor exploitation is characterized to verify class exploitation correspondence principle cecp roemer 1982 according to this cecp no longer holds in general convex cone economies if the well known formulations of labor exploitation such as morishima 1974 and roemer 1982 chapter 5 are applied therefore we propose two new definitions of labor exploitation each of which verifies cecp

on efficient distribution with private information this paper is a study of the dynamics of the efficient distribution of consumption in an exchange economy with many consumers each of whom is subject to private idiosyncratic taste shocks we propose a recursive method for finding feasible allocations that are incentivecompatible and that are pareto optimal within this set the method is applied to several parametric examples we find that in an efficient allocation the degree of inequality continually increases with a diminishing fraction of the population receiving an increasing fraction of the resources we discuss the extent to which these allocations can be decentralized via market arrangements this paper is a study of the dynamics of the efficient distribution of consumption in an exchange economy with private information the economy we study has a constant endowment flow of a single non storable consumption good which is to be allocated each period among a large number of consumers each period these consumers experience unpredictable idiosyncratic privately observed taste shocks affecting their marginal utility of current consumption efficiency dictates that more resources be allocated to those consumers who in any given period have a high marginal utility of current consumption

financial capacity and output fluctuations in an economy with multi period financial relationships this paper motivates a financial propagation mechanism in the context of an intertemporal production economy with asymmetric information and with borrowers and lenders who enter multi period financial relationships a key feature is that aggregate output and borrowers financial capacity the maximum overhang of past debt they may feasibly carry are determined jointly much in the spirit of gurley and shaw 1955 expectations of future economic conditions govern financial capacity which in turn may constrain current production especially in bad times a small but persistent shift in aggregate conditions may have a large impact on financial capacity making the framework capable of motivating large endogenous fluctuations in financial constraints understanding how small disturbances can induce large output fluctuations is an on going quest in macroeconomics this paper develops a simple framework in which shifts in aggregate economic fundamentals are amplified through their impact on financial conditions a distinguishing feature is that output and borrowers financial capacity the maximum overhang of past debt they may feasibly carry are determined jointly much in the spirit of gurley and shaw 1955 expectations of future economic conditions govern financial capacity and financial capacity may constrain current production especially in bad times a number of recent papers have resurrected the view that financial factors may play a part in propagating business fluctuations the underlying theories exploit the idea that with asymmetric information between borrowers and lenders agency costs may drive the price of uncollateralized external funds above the price of internal funds in this kind of setting a borrower s financial position is a key determinant of the terms of credit she faces in the aggregate swings in borrower balance sheets over the cycle amplify fluctuations in investment and output essentially by inducing counter cyclical movements in the required premium for external finance this simple mechanism is broadly consistent with informal descriptions of how financial and real variables interacted in the great depression bernanke 1983 and in the postwar business cycles eckstein and sinai 1986 in addition numerous recent panel data studies beginning with fazzari hubbard and peterson 1988 support the notion of a financial investment accelerator mechanism

the structure of class conflict in democratic capitalist societies the article presents a theory of class conflict between workers and capitalists who pursue their material interests under a form of societal organization that combines private ownership of instruments of production with representative political institutions there exist economic and political conditions under which both classes would simultaneously choose courses of action that constitute a class compromise workers consent to the institution of profit and capitalists to democratic institutions through which workers can effectively press claims for material gains when these conditions hold and a compromise is in force the role of the state consists in institutionalizing coordinating and enforcing the terms of a compromise that represents the preferences of workers as well as capitalists the combination of private ownership of the instruments of production with representative political institutions based on widespread suffrage constitutes a compromise between workers who consent to the private appropriation of profit by owners of capital and capitalists who accept the democratic institutions through which workers can make effective claims for an improvement of their material conditions this form of societal organization was con

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

optimal lending contracts and firm dynamics we develop a general model of lending in the presence of endogenous borrowing constraints borrowing constraints arise because borrowers face limited liability and debt repayment cannot be perfectly enforced in the model the dynamics of debt are closely linked with the dynamics of borrowing constraints in fact borrowing constraints must satisfy a dynamic consistency requirement the value of outstanding debt restricts current access to short term capital but is itself determined by future access to credit this dynamic consistency is not guaranteed in models of exogenous borrowing constraints where the ability to raise short term capital is limited by some prespecified function of debt we characterize the optimal default free contract which minimizes borrowing constraints at all histories and derive implications for firm growth survival leverage and debt maturity the model is qualitatively consistent with stylized facts on the growth and survival of firms comparative statics with respect to technology and default constraints are derived borrowing constraints are an important determinant of firm growth and survival 1 such constraints may arise in connection to the financing of investment opportunities faced by firms or temporary liquidity needs such as those required to survive a recession this paper develops a theory of endogenous borrowing constraints and studies its implications for firm dynamics in our model debt is constrained by the firm s limited liability and option to default a lending contract specifies an initial loan size future financing and a repayment schedule the choice of these variables in turn determines future growth the firm s future borrowing capacity and its ability and willingness to repay hence borrowing constraints and firm dynamics are jointly determined we study this dynamic design problem our model builds on thomas and worral s 1994 model of foreign direct investment at time zero a risk neutral borrower firm or entrepreneur has a project which requires a fixed initial set up cost every period the project yields revenues that increase with the amount of 1 there is considerable evidence suggesting that financing constraints are important determinants of firm dynamics gertler and gilchrist 1994 argue that liquidity constraints may explain why small manufacturing firms respond more to a tightening of monetary policy than do larger manufacturing firms perez quiros and timmermann 2000 show that in recessions smaller firms are more sensitive to the worsening of credit market conditions as measured by higher interest rates and default premia evans and jovanovic 1989 show that the liquidity constraints are essential in the decision to become an entrepreneur fazzari hubbard and petersen 1988 among others view financial constraints as an explanation for the dynamic behaviour of aggregate investment and cabral and mata 1996 are able to fit reasonably well the size distribution of portuguese manufacturing firms by estimating a simple model of financing constraints for surveys see hubbard 1998 and stein 2003

sector heterogeneity and credit market imperfections in emerging markets this paper shows that the impact of country interest rate shocks on emerging markets economic activities can be associated with credit market imperfections affecting principally non tradable activities i present novel evidence documenting that tradable and non tradable activities respond asymmetrically to changes in credit conditions in emerging markets i show that country interest rate shocks are amplified through non tradable activities and that local credit substantially explains their output growth unlike the non tradable sector tradable activities are not significantly affected by changes in local credit conditions to rationalize these findings i introduce a small open economy model with heterogeneous access to international borrowing that accounts for the asymmetric response of tradable and non tradable activities

optimal long term financial contracting we develop an agency model of financial contracting we derive long term debt a line of credit and equity as optimal securities capturing the debt coupon and maturity the interest rate and limits on the credit line inside versus outside equity dividend policy and capital structure dynamics the optimal debt equity ratio is history dependent but debt and credit line terms are independent of the amount financed and in some cases the severity of the agency problem in our model the agent can divert cash flows we also consider settings in which the agent undertakes hidden effort or can control cash flow risk

financial determinants of firm dynamics evidence from a european panel i use a panel of large european firms for the period 1999 2007 to study scale dependence in firm dynamics i find that scale dependence is much more pronounced when focusing on within firm rather than between firm variation and that scale dependence is a decreasing function of financial development

labour time versus alternative value bases a research note this paper provides empirical support for the law of value understood as the proposition that embodied labor time is conserved in exchanges of commodities market prices are well correlated with the sum of direct and indirect labor content is it possible to produce equally good correlations by taking the sum of direct and indirect x content where x is some input other than labor time the authors repeat the analysis for electricity iron and steel and oil and show that the answer is no the high correlations in the case of labor time are therefore not a statistical artifact copyright 1997 by oxford university press

outside opportunities and termination abstract we study a dynamic principal agent relationship where a stochastic outside opportunity offer arises each period for the risk averse agent termination is costly but it allows the agent to pursue the available outside opportunity and the principal to return to an external market to hire a new agent the principal acts strategically with respect to the agent s outside offers and we show that it is optimal to terminate the current relationship if and only if the agent s outside offer is above a cutoff level the optimal contract generates both voluntary and involuntary terminations severance compensation arises endogenously and we show that it may be paid only in involuntary terminations conditional on termination the size of the optimal severance compensation depends positively on the agent s current compensation but negatively on his outside offer the optimal contract dictates an inverted u relationship between compensation and the probability of termination

intertemporal distortions in the second best we consider a very general class of public nance problems that encompasses ramsey models of optimal taxation as well as economies with limited commitment private information and political economy frictions we identify a su cient condition to rule out permanent intertemporal distortions at the optimum if there exists an admissible allocation that converges to the rst best steady state then all intertemporal distortions are temporary in the second best we analyze a series of applications to illustrate the signi cance of this result

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

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

cross sectoral variation in the volatility of plant level idiosyncratic shocks the volatility of plant level idiosyncratic shocks we estimate the volatility of plant level idiosyncratic shocks in u s manufacturing we measure the variation in revenue total factor productivity not explained by either industry or economy wide factors or by establishments characteristics we find that idiosyncratic shocks are much larger than aggregate shocks accounting for about 80 of the overall uncertainty faced by plants plants in the most volatile sector are subject to about six times as much idiosyncratic uncertainty as plants in the least volatile we provide evidence suggesting that idiosyncratic risk is higher in industries where the extent of creative destruction is likely to be greater

labour values prices of production and the missing equalisation tendency of profit rates evidence from the german economy during recent years several empirical studies have found that deviations from labour values to market prices are quite small however most of these articles do not offer a detailed reason for this result in this paper two theoretical justifications of the labour theory of value are brought together with some data concerning labour values prices of production and market prices on the basis of german input output tables from 2000 and 2004 in addition the statistical characteristics of profit rates are analysed both of the theoretical arguments are much in line with the empirical observations because there is only a slight transformation tendency and at the same time profit rates and capital intensity are negatively correlated moreover during the period under observation the german economy seems to be in a state of statistical equilibrium copyright oxford university press

financial constraints and firm dynamics this study analyzes the effect of financial constraints fcs on firm dynamics we measure fcs with an official credit rating which captures availability and cost of external resources we find that fcs undermine average firm growth induce anti correlation in growth patterns and reduce the dependence of growth volatility on size fcs are also associated with higher volatility and asymmetries in growth shock distributions preventing young fast growing firms especially from seizing attractive growth opportunities and further deteriorating the growth prospects of already slow growing firms particularly if old the sub diffusive nature of the growth process of constrained firms is compatible with the distinctive properties of their size distribution

investment irreversibility and financing constraints evidence from a panel of transition economies abstract focusing on a panel of unlisted firms from transition economies we observe that only firms facing low irreversibility exhibit high and significant investment cash flow sensitivities our findings provide a new explanation for why some financially constrained firms may exhibit low sensitivities

profits equal surplus value on average and the significance of this result for the marxian theory of accumulation being a new contribution to engels prize essay competition based on random matrices and on manuscripts recently published in the mega for the first time marx s justification of his theory of surplus value in the face of unequal compositions of capital by interpreting total profits as a redistribution of surplus value is not correct in general however it is shown here that the equality holds if the input matrices are random and the labour theory of value holds in a sense to be specified on average manuscripts recently published for the first time confirm that to the end marx trusted his approach to the theory of value in that he continued to use the identity of the aggregates of capital and surplus in value and in price terms his insistence was rooted in his philosophy an attempt is made to clarify his use of a hegelian methodology by comparing hegel s and marx s approaches to the foundation of the infinitesimal calculus the article concludes with marx s late reconsiderations of his theory of the falling rate of profit which also continue to be based on the equality of profit and surplus value

how sensitive is investment to cash flow when financing is frictionless i analyze the sensitivity of a rm s investment to its own cash ow in the benchmarkcase where nancing is frictionless this sensitivity has been proposed as a measure of nancing constraints in earlier studies i nd that the investment cash ow sensitivities that obtain in the frictionless benchmarkare very similar both in magnitude and in patterns they exhibit to those observed in the data in particular the sensitivity is higher for rms with high growth rates and low dividend payout ratios tobin s q is shown to be a more noisy measure of near term investment plans for these rms does a high sensitivityof a rm s investment to its own cash ow indicate that the rm is nancially constrained a large body of research starting with fazzari hubbard and petersen 1988 hereafter fhp suggests that rms facing nancing constraints should exhibit high investment cash ow sensitivities re ecting the wedge between the costs of external and internal funds empirical ndings seem to give support to this hypothesis since rms classi ed as constrained on a priori criteria such as size dividend payout or leverage do have higher cash ow sensitivities even after controlling for their investment opportunities by conditioning on tobin s q however the reliability of these results critically depends on whether q is a proper control for the investment opportunity set if q performs worse for certain classes of rms higher sensitivities may obtain for these rms simply because cash ow re ects information about investment opportunities this critique is not new in his discussion of fhp poterba 1988 was the rst to point out that measurement error in q may cloud the empirical results similar concerns have been raised in subsequent studies as well while the qualitative point is well known its quantitative impact on the investment cash ow sensitivity has not been analyzed can the linkbetween cash ow and the investment opportunity set account for the observed magnitudes of the sensitivity or are these magnitudes too large to be explained without nancing frictions