endogenous business cycles and systematic stabilization policy we study the effects of fiscal policy rules on the determinacy of rational expectations equilibrium in a perfectly competitive monetary model with constant returns government spending implies a distortion of the monetary steady state due to the implied taxation we show that policy rules that let the gnp share of government spending depend sufficiently negatively on increases in gnp stabilize the economy with respect to endogenous fluctuations for arbitrarily little distortion of the steady state at which stabilization occurs the rules do not involve lump sum taxation negative income taxation or exact knowledge of the economy s laissez faire steady state

introduction to the symposium on growth fluctuations and sunspots confronting the data the papers in this symposium demonstrate the theoretical as well as the empirical plausibility of indeterminacy and of sunspots in equilibrium models with infinitely lived agents they depart from the standard competitive framework because of the presence of externalities or of monopolistic competition some focus on business fluctuations while others address long run growth the second part of the introduction presents a general unifying framework to identify the structure that is common to the papers of the symposium journal of economic literature classification numbers e00 e3 o40 c 1994 academic press inc

el salvador s agricultural sector macroeconomic policy agrarian change and the environment abstract this paper argues that current agricultural policy in el salvador is failing to further the goals of macroeconomic growth and stability sustainable livelihood security and environmental sustainability macroeconomic policy has turned relative prices sharply against agriculture the plight of the rural poor has been exacerbated by continuing inequities in the agrarian structure the breakdown in rural livelihoods and limited access to land and other assets is accelerating environmental degradation suggested alternative policies such as more favorable price policies agrarian reform and environmental restoration would promote sustainable development by capitalizing on the complementarity among growth poverty reduction and consolidation of peace

capital labor substitution and competitive nonlinear endogenous business cycles abstract we develop simple geometrical methods to study local indeterminacy bifurcations and stochastic sunspot equilibria near a steady state in nonlinear two dimensional economic models we present in particular a simple constructive geometrical characterization of the support of stochastic sunspot equilibria not only arbitrarily near a steady state but also along local bifurcations these methods are applied to a simple aggregative model to study in particular the influence of capital labor substitution and of the aggregate labor supply wage elasticity on the occurrence of competitive endogenous deterministic or stochastic fluctuations journal of economic literature classification numbers e32 c62

marginal rate of transformation and rate of substitution measured by dea environmental assessment comparison among european and north american nations this study discusses the new use of dea data envelopment analysis environmental assessment to measure mrt marginal rate of transformation and rs rate of substitution among production factors e g inputs desirable and undesirable outputs to measure the degree on mrt and rs this study first examines a concept of disposability from the perspective of economic strategies to combat various environmental issues the strategies are extendable to a policy change for pollution prevention the underlying concept is separated into natural and managerial disposability under managerial disposability it is possible for us to measure an occurrence of desirable congestion or eco technology innovation considering the disposability concept this study discusses how to measure the type and magnitude of mrt and rs a problem of the mrt rs measurement is that these measures usually become unstable e g very large or small in these magnitudes because dea does not assume any functional form for economic activities to overcome such a difficulty this study equips dea environmental assessment with multiplier restriction by utilizing a unique feature on a proposed data treatment the multiplier restriction in dea has been never explored in previous works on environmental assessment in an application this study finds three important economic concerns on europe and north america first western europe outperforms eastern europe and north america in their unified efficiency measures under managerial disposability this study statistically confirms a difference between western and eastern europe but not between western europe and north america this result exhibits that eastern europe is not yet well developed at the level of the other two regions second eastern europe has exhibited mrt estimates that are different from western europe and north america the nations in eastern europe have an economic potential for industrial developments because the level of their industrial pollutions is less than that of the other two regions the potential is also found in their mrt estimates finally an interesting difference can be found in the rs estimate between eastern europe and western europe from 2008 to 2012 they have statistically exhibited a difference between the two regimes but not with north america this is because most nations in both western europe and north america have already attained a high level of economic successes so that they have a limited industrial potential under current production technology and eco technology the situation of the two regions will be changed along with new technology development in contrast eastern europe is different from the other two regions in terms of attaining such a level of social sustainability because of limited capital accumulation and limited opportunity for technology innovation

measuring the liquidity effect this paper measures the effect on the federal funds rate of an open market operation the paper deals with simultaneous equations bias by developing a proxy for the errors the federal reserve makes in forecasting the extent to which treasury operations will add or drain reserves available to private banks these errors induce fluctuations in bank reserves which have measurable consequences for the federal funds rate the paper estimates that a reduction in nonborrowed reserves of 30 million if sustained for an entire fourteen day reserve maintenance period will cause the federal funds rate to rise by ten basis points copyright 1997 by american economic association

labor contracts and business cycles this paper investigates the claim often put forth by real business cycle proponents that the poor performance of their models in matching real world aggregate labor market behavior is due to the fact that observed real wage payments do not correspond to the actual marginal productivity of labor but contain an insurance component that cannot be accounted for by the walrasian pricing mechanism to test this idea we dispense with the walrasian description of the labor market and introduce contractual arrangements between employees and employers assuming that employees are prevented from accessing capital markets and are more risk averse than employers we use the theory of optimal contracts to derive an equilibrium relation between aggregate states of the economy and wage labor outcomes this contractual arrangement is then embedded into a standard one sector stochastic neoclassical growth model in order to look at the business cycle implications of the contractual hypothesis the resulting dynamic equi

borrowing constraints and complex dynamics in an olg framework abstract in this paper we model an olg economy a la kiyotaki and moore whose novel feature is the role of money as a store of value and of bequest as a source of funds to be invested in landholding the dynamics generated by the model are generally characterized by irregular cyclical trajectories and under special configuration of the parameters a strange attractor appears in this setting an expansionary monetary policy may have a stabilizing role due to the interaction between money holding and the accumulation of borrowers net worth

can heterogeneous preferences stabilize endogenous fluctuations while most of the literature concerned with indeterminacy and endogenous cycles is based on the restrictive assumption of a representative consumer some recent contributions have investigated the role of heterogeneous agents in dynamics this paper adds to this latter strand of the literature by highlighting the effects of heterogeneity in consumers preferences within an overlapping generations economy with capital accumulation endogenous labor supply and consumption in both periods using a mean preserving approach to heterogeneity we show that increasing the dispersion of propensity to save decreases macroeconomic volatility by narrowing down the range of parameter values compatible with indeterminacy and ruling out expectations driven fluctuations under a sufficiently large heterogeneity

an empirical examination of bank reserve management behavior abstract bank regulators modify reserve accounting schemes for various purposes including to improve monetary control simplify reserve account management and decrease the reserve burden however the effect of modifications may not be as intended utilizing a micro perspective we model the reserve management process empirically estimate the model and evaluate hypotheses concerning changes in the reserve accounting scheme we find some unintended effects from modifications to the accounting scheme tenuous support for the use of carryover as a futures in reserves instrument and little change in banks ability to manage reserve balances as they moved from a lagged to a contemporaneous reserve accounting environment

resource allocation and use under collective rights and labour management in peruvian coastal agriculture a critical issue in the evaluation of labour management as a development policy is its impact on production in an effort to contribute to that evaluation and to the economics of labour management this study analyses production data collected from cooperative firms established by the peruvian agrarian reform the data present an unusual opportunity for careful microeconomic analysis of the reform itself as well as an opportunity to confront and refine existing propositions about the effects of the collective property rights of labour management on production property rights may affect production because of their effort on incentives for conventional resource allocation decisions they may also affect intrafirm principal agent decisions which determine the intensity with which given resources are utilised beginning with ward s i 958 paper a number of theoretical studies have compared labour managed and capitalist resource allocation and an approximate consensus has emerged about conditions under which differences occur in this study measures of the allocative behaviour of peruvian firms are estimated and compared with the theoretically expected behaviour of both capitalist and peasant agricultural producers the impact of collective ownership on the intensity of resource utilisation i e technical efficiency of the observable production function arouses greater theoretical dispute than the resource allocation question a collective assignment of property rights may weaken supervisory authority which can control free rider externality problems within the production process on the other hand participation of labour in management may foster cooperative attitudes and other social control devices which can fulfill the same functions as hierarchical supervision existing literature offers the competing hypotheses that labour management leads either to a breakdown in intrafirm coordination and the observable technical efficiency of production as jensen and meckling i 979 claim or to an improvement as vanek i 969 claims the results of the present paper do not unequivocably support either view instead they portray a diversity in labour managed production performance and suggest the importance of policy and institutional factors which condition the impact of labour management on production the results also provide a

stationary sunspot equilibria in a finance constrained economy abstract stationary sunspot equilibria are shown to exist in a production economy with infinite lived agents when it is not possible to borrow against future wage income equilibrium fluctuations exhibit persistence over time scales of the same order of magnitude as observed business cycles an active fiscal policy that stabilizes aggregate money expenditures can prevent such fluctuations

strategic work interactions and the kibbutz kolkhoz paradox the authors develop a model of strategic work interactions in collective enterprises explaining the following observation the israeli kibbutz in which net collective output is distributed equally has been an economic success while the soviet kolkhoz in which net output traditionally was divided according to relative work input has been a failure in contrast the conventional cournot nash theory of collective enterprises predicts superoptimal output in the kolkhoz while in the kibbutz the free fider problem is predicted to lead to suboptimal effort their theory predicts pareto optimal work effort in the kibbutz and suboptimal effort in the kolkhoz copyright 1989 by royal economic society

ces production functions and economic growth we examine inconsistencies and controversies related to the use of ces production functions in growth models first we show that not all variants of ces functions commonly used are consistently specified second using a simple growth model we find that a higher elasticity of substitution leads to a higher steady state and makes the emergence of permanent growth more probable it is also pointed out that the effect of a higher elasticity of substitution on the speed of convergence depends on the relative scarcity of the factors of production finally we discuss possible explanations of variations in the elasticity of substitution jel classification o41 o11

multiple steady states and endogenous fluctuations with increasing returns to scale in production abstract the purpose of this paper is to study the influence of the elasticity of capital labor substitution and of the labor supply elasticity on the existence of multiple pareto ranked stationary equilibria local indeterminacy bifurcations and expectations driven fluctuations in economies with external and internal increasing returns to scale in production this is done through general geometrical methods that do not depend upon particular specifications for preferences and technology for the sake of concreteness the analysis focuses on the model with heterogeneous agents and financial constraints presented in woodford j econ theory 40 1986 128 137 and extended by grandmont pintus and de vilder capital labor substitution and competitive nonlinear endogenous business cycles crest working paper 9728 1997 to account for capital labor substitution increasing returns to scale are incorporated in two different market structures an economy with aggregate production externalities and perfectly competitive markets an economy with increasing returns internal to the firm and imperfect competition in the product s market s only journal of economic literature classification numbers c61 e32

intertemporal and intratemporal substitution and the speed of convergence in the neoclassical growth model abstract this paper re examines the speed of convergence in a one sector growth model under fairly general conditions with respect to both production and preferences we investigate the response of the rate of convergence to the intratemporal elasticity of substitution in production and to the intertemporal and intratemporal elasticities of substitution in consumption the speed of convergence is highly sensitive to the first two elasticities but not to the third which is reflected primarily in the agent s labor leisure choice small deviations in the elasticities from standard benchmark parameters can lead to significant variations in the rate of convergence encompassing the range of typical empirical estimates

on competitive cycles in productive economies abstract in a model of overlapping generations with production money and an endogenous labor supply general conditions are given for the existence of two different types of cyclical equilibria the conditions are given in terms of the elasticities of demand for savings and for capital with respect to the interest rate and of the capital consumption ratio at the golden rule steady state examples using ces technologies are also studied

shirking and the choice of technology a theory of production inefficiency with an empirical application abstract we develop a model of shirking and technology choice and show that organizations exercising less effective direct control over shirking adopt technologies that underutilize the workforce to a greater degree relative to neoclassical counterparts in order to control shirking indirectly thus technical inefficiency arises endogenously as a rational response to allocative inefficiency caused by shirking an empirical analysis of data from a sample of collective and private farms operating in jewish palestine reveals the presence of shirking and supports the prediction that farms with less effective direct control over shirking exhibit greater labor hoarding as a manifestation of technical inefficiency

capital labor substitution and equilibrium indeterminacy empirical evidence indicates that the elasticity of capital labor substitution for the aggregate u s economy is below unity in contrast the existing indeterminacy literature has mostly restricted attention to a cobb douglas production function which imposes a substitution elasticity exactly equal to unity this paper examines the quantitative relationship between capital labor substitution and the conditions needed for equilibrium indeterminacy and belief driven fluctuations in a one sector growth model with variable capital utilization the substitution elasticity has little quantitative impact on the minimum degree of increasing returns needed for indeterminacy however when capital utilization is constant a below unity substitution elasticity sharply raises the minimum degree of increasing returns in this version of the model lower substitution elasticities impose a higher adjustment cost on labor hours that cannot be mitigated by shifts in the capital utilization rate overall our results show that empirically plausible departures from the cobb douglas specification can make indeterminacy more difficult to achieve

introduction to market psychology and nonlinear endogenous business cycles abstract the purpose of this symposium is to present geometric methods that are useful to study multiple equilibria and endogenous fluctuations in simple two dimensional macroeconomic models with a single predetermined variable characterizing the support of a sunspot equilibrium by its invariance properties in the underlying deterministic dynamics generates a complete description of stochastic endogenous fluctuations near a stationary state and along local bifurcations graphical methods to perform sensitivity analysis of local indeterminacy and bifurcations with respect to variations of uncertain economic parameters are also presented these methods are applied to specific macroeconomic models with constant returns to scale with external increasing returns and with imperfect competition journal of economic literatureclassification numbers e32 c62

bank earning asset behavior and causality between reserves and money lagged versus contemporaneous reserve accounting abstract this paper empirically examines the impact of lagged reserve accounting on large individual bank behavior its specific objective is to assess the claim that the institution of lra has led to a decoupling of the earning asset and reserve adjustment decisions of banks to accomplish this objective a system of equations which jointly describe the reserve adjustment and earning asset decisions of banks is estimated and tested for differences in the model between the periods before and after 1968 it is found that bank behavior does not differ fundamentally under lra evidence that banks make their earning asset adjustments promptly and that expected future interest rates are important in their decisions is also presented

labor market adjustment to political conflict changes in the labor market in el salvador during the 1980s abstract i use household survey data for the 1980s to examine changes in the labor market of el salvador the findings suggest that the labor market does adjust to conflict there have been significant effects of conflict on the regional distribution of employment on international migration on internal migration in the areas directly affected other indicators such as labor force participation and self employment rates show outcomes are lower in the areas that were affected by conflict but were lower even before the conflict began and for earnings the level of real hourly earnings has fallen substantially in all areas in the 1980s

bank reserve adjustment process and the use of reserve carryover as a reserve management tool a microeconometric approach this papers examines the impact of bank use of the reserve carryover provision on the reserveadjustment process and federal funds rate volatility a discussion of the newly proposed change to contemporaneous reserve accounting is also given the empirical purposes of this paper are accomplished by specifying and estimating a model of bank reserve adjustment behavior in which the interrelatedness of reserve adjustment instruments is explicitly taken into account we conclude that to the extent banks use carryover to express their funds rate forecasts in the market and the federal reserve clearly signals its intended open market course variability in the funds rate and the monetary aggregates is reduced by the carryover provision

equilibrium models displaying endogenous fluctuations and chaos abstract this paper surveys current developments in dynamic general equilibrium theory concerned with conditions under which endogenous fluctuations are possible existing contributions are divided into two classes the larger one consists of models with a unique perfect foresight equilibrium while the second includes models where equilibrium is indeterminate and the set of equilibria involving endogenous fluctuations includes sunspots equilibria while the two classes of models involve oscillations of different natures and with different policy implications we show that both are consistent with optimizing behavior and competitive equilibrium

the normalized ces production function theory and empirics abstract the elasticity of substitution between capital and labor and in turn the direction of technical change are critical parameters in many fields of economics until recently though the application of production functions with specifically non unitary substitution elasticities i e non cobb douglas was hampered by empirical and theoretical uncertainties as recently revealed normalization of production technology systems holds out the promise of resolving many of those uncertainties we survey and assess the intrinsic links between production as conceptualized in a production function factor substitution as made most explicit in constant elasticity of substitution functions and normalization defined by the fixing of baseline values for relevant variables first we recall how the normalized constant elasticity of substitution function came into existence and what normalization implies for its formal properties then we deal with the key role of normalization in recent advances in the theory of business cycles and of economic growth next we discuss the benefits normalization brings for empirical estimation and empirical growth research finally we identify promising areas of future research

federal reserve interest rate targeting rational expectations and the term structure abstract the amount of information in the yield curve for forecasting future changes in short rates varies with the maturity of the rates involved indeed spreads between certain long and short rates appear unrelated to future changes in the short rate contrary to the rational expectations hypothesis of the term structure this paper estimates a daily model of federal reserve interest rate targeting behavior which accompanied by the maintained hypothesis of rational expectations explains the varying predictive ability of the yield curve and elucidates the link between fed policy and the term structure

stabilizing competitive business cycles abstract we study how stylized monetary proportional money transfers fiscal lump sum money transfers and public expenditure policies may eliminate endogenous deterministic cycles and stationary markov sunspot equilibria in a simple version of the overlapping generations model we also present new constructive methods for analyzing stationary markov sunspot equilibria in such a framework

on the minimum degree of returns to scale in sunspot models of the business cycle abstract bennett and farmer j econ theory 93 2000 118 claim that the degree of increasing returns to scale required for indeterminacy in a single sector growth model can be lowered by allowing for preferences that are non separable in consumption and leisure in this paper i show that the example they give violates concavity in a more general setup which does not impose specific functional forms on utility i prove that there are no concave utility functions compatible with indeterminacy if the elasticity of scale is lower than the inverse of the labor share in production

capacity utilization under increasing returns to scale abstract this paper overcomes an important objection against the empirical relevance of the benhabib farmer model as a potential account of actual business cycle fluctuations this is attributable to an elasticity effect and a returns to scale effect of capacity utilization these effects are closely related to the empirical puzzles that capital appears to play an insignificant role in explaining cyclical movements in output and that the estimated labor elasticity appears to be larger than labor s share due to these effects multiple equilibria and persistent fluctuations can easily occur in a growth model for externalities mild enough so that the aggregate labor demand curve is downward sloping analyses show that the propagation mechanism generated by capacity utilization under mild increasing returns is capable of explaining the periodic patterns of u s business cycles documented by watson journal of economic literature classification numbers e32 e22 c52

economic growth and the elasticity of substitution two theorems and some suggestions at the beginning of the twentieth century the work of the swedish economist knut wicksell 1901 marked an important advance in our understanding of the relationship between the structure of production functions and income distribution wicksell had asked the following question among many others suppose that the marginal productivities are equal to the remuneration rates of each factor what then should be the form of the corresponding production function he pointed out p 125 that the general integral of the partial differential equation implied by this relationship was of the form y lf kil which meant in turn that the product y was necessarily a homogeneous of degree one function of capital k and labor l as an example he gave a function where the shares of k and l in y were constant and wrote down the function which would be rediscovered decades later by charles w cobb and paul h douglas 1928 however it is only half a century later in robert m solow s nobel prize winning 1956 essay that implications between the structure of the production function and long run equilibrium or disequilibrium of the economy were drawn in his classic article a contribution to the theory of economic growth solow had considered three cases analytically other cases were also discussed geometrically using a phase diagram he had labeled the two first cases 1hlarrod domar and cobb douglas respectively and he referred to the third type of production function as offering a bit of variety it was y ak 2 l 2 2 a particular case of y akp lp 1p in those early days solow had not pointed out to the reader that his cases could have been numbered 0 1 and 2 following the elasticity of substitution of the corresponding production function it would be only five years later in 1961 that with his coauthors kenneth j arrow et al he would find the general form of the two factor constant elasticity of substitution ces production function by integrating the differential equation corresponding to the observed relationship between output per capita and the wage rate solow s third case was indeed highly interesting since it allowed the possibility of everincreasing income per head even without any technical progress indeed solow showed that due to the efficiency of the system entailed by the particular production function he had chosen there existed a threshold for the savings rates s to generate investment per head large enough for income per head to grow forever that threshold was s nla2 where n is the growth rate of the population it was then natural to ask whether one could express that threshold in terms of the elasticity of substitution a the value of that threshold was determined by de la grandville 1989 to be equal to s no3 or where a is k s coefficient in a normalized ces function equal to a in solow s third case where u 2 for any s and n values this relationship gives also the threshold value in implicit form by the solution of ao1 1 log 3q or ilog nls by totally differentiating the last relationship one could observe that the threshold for the elasticity of substitution to entail ever sustained growth was an in klump faculty of mathematics and economics university of ulm helmholtzstrasse 20 d 89081 ulm germany de la grandville department of economics university of geneva 102 boulevard carl vogt ch 1211 geneva 4 switzerland we gratefully acknowledge the comments of seminar participants at stanford university and at the universities of stuttgart hohenheim and munich where parts of the paper were presented also we would like to thank without implicating in any way robert solow for his insightful remarks and an anonymous referee for very helnfuil supgestions wicksell cobb and douglas would no doubt burst with pride if they knew that one of our first year students wrote in a paper of his of course we recognize here a kirk douglas production function

aggregate stability and balanced budget rules it has been shown that under perfect competition and a cobb douglas production function a basic real business cycle model may exhibit indeterminacy and sunspot fluctuations when income tax rates are determined by a balanced budget rule bbr this paper introduces in an otherwise standard real business cycle model a more general and data coherent class of production functions namely a constant elasticity of substitution production function we show that the degree of substitutability between production factors is a key ingredient to understanding the de stabilizing properties of a bbr then we calibrate the model consistently with the empirical evidence that is we set the elasticity of substitution between labor and capital below unity we show that compared to the cobb douglas case the likelihood of indeterminacy under a bbr is greatly reduced in the u s the eu and the uk

indeterminacy and increasing returns abstract we investigate properties of the one sector growth model with increasing returns under two organizational structures capable of reconciling the existence of aggregate increasing returns with competitive behavior by firms the first involves input externalities the second involves monopolistic competition we show for parameters in close accord with recent literature on real business cycles that the model displays an indeterminate steady state that can be exploited to generate a model of business fluctuations driven by self fulfilling beliefs in our first class of models growth is generated by exogenous increases in factor productivity in the second class the marginal product of capital is large enough for endogenous growth journal of economic literature classification numbers e00 e3 o40

complicated endogenous business cycles under gross substitutability abstract in this paper we investigate the global behaviour of the output equilibrium time paths in a two dimensional overlapping generations model with productive investment and capital accumulation where agents behave rationally and markets are competitive we show that equilibrium time paths can converge to complicated chaotic attractors as well as periodic attractors when the substitution effect dominates the income effect everywhere the occurrence of complicated equilibrium paths is guaranteed by homoclinic intersections of the stable and unstable manifolds of the autarkic steady state journal of economic literature classificiation number e32

endogenous fluctuations in an open economy with increasing returns to scale in this paper we study the effects of opening an economy with increasing returns in the production of nontraded goods on the existence of multiple pareto ranked stationary equilibria local indeterminacy and bifurcations we consider a standard overlapping generation model of a small open economy with a fixed exchange rate where labour is the only input and money the only asset we find that when there are increasing returns the open economy may display persistent equilibrium endogenous fluctuations deterministic and stochastic in the balance of trade and main macroeconomic aggregates

fixed costs and the behavior of the federal funds rate abstract this paper presents an equilibrium model of the federal funds market that ties movements in the funds rate to changes in the supply of reserves and to a fixed cost facing banks that borrow at the discount window it is found that the existence of the fixed cost is capable of explaining a number of features of the funds market in particular it is critical for explaining occasional instances of extremely high funds rates it also provides an explanation for heterogeneous behavior across banks towards the discount window and for higher average funds rates at the end of maintenance periods

the performance of private and cooperative socialist organization postwar yugoslav agriculture socialist enterprises in yugoslav agriculture show higher levels of productivity than private producers the author examines the sources of these differences with total factor productivity estimates based on sectoral aggregate cobb douglas production functions which permit separation of environmental policy and organizational effects the results support the following conclusions cooperative socialist enterprises are not inherently inefficient and can even outperform private producers both types of producers were responding to their environment and their differential rates of technological change reflect the different constraints they faced and socialist enterprises exhibited technology adoption behavior similar to nonsocialist enterprises elsewhere copyright 1987 by mit press

effort technology and the efficiency of agricultural cooperatives abstract the inefficiency of cooperative agriculture relative to private farms is often attributed to difficulties in monitoring or poor incentives we develop a model to show that in technologies with numerous sequential steps even small shortfalls in worker effort can result in large output declines using data on cooperative and private farms in el salvador we find greater shortfalls in efficiency between cooperatives and private farms as well as among cooperatives for coffee a crop requiring numerous steps in its cultivation than for maize and sugar which require fewer steps thus the undersupply of effort in cooperatives may be less than differences in productivity suggest and cooperative agriculture is most likely to be successful where production does not involve many sequential steps

is private farming more efficient than socialized agriculture this paper examines the technical efficiency of state and private farms in poland for the period 1960 74 we find that the average technical efficiency of the two types of farms does not differ although the dispersion of efficiency levels is greater among state farms than among private ones we do find clear evidence of allocative inefficiency with state farms oversupplied with fertilizer and machinery

mobility and labor market segmentation the urban labor market in el salvador there is now a large literature examining the hypothesis that there are barriers to mobility between sectors of the labor market in developing countries though there are many explanations for barriers to mobility most versions of the segmented labor market hypothesis are based on restricted access to a higher wage primary or formal sector and free access to a lower wage secondary or informal sector the testable predictions of the hypothesis are the implications of the assumption of excess supply to the primary sector most studies have found results consistent with these predictions including different structures of wages between sectors lower returns to human capital in the secondary sector and lower job tenure by sectors for some demographic groups but as several authors have recently noted it is difficult to distinguish this hypothesis from other competitive explanations for these patterns the competitive model is also consistent with the testable predictions of the segmented labor market hypothesis though the competitive model is consistent with the observed patterns the observed patterns do put restrictions on the version of the competitive model that is appropriate for developing countries for example the finding that earnings tend to be lower in the informal sector is consistent with compensating differentials but this applies only to compensating differentials that are based on formal sector employment as being less desirable such as job flexibility similarly the finding of lower returns to human capital in the informal sector is consistent with life cycle models of investment in human capital but only models in which there is lower labor market attachment of those employed in an informal sector and thus less time to recuperate investments in on the job training but most of the necessary assumptions are reasonable and as a result tests of the segmented labor market hypothesis cannot distinguish among competing explanations

day of the week effects in federal funds rates further empirical findings abstract we extend the spindt and hoffmeister 1988 model of the daily operation of an institution s federal reserve account to show strong inter and intra period incentives to borrow and lend in the federal funds market at predictable points in the 10 trading day settlement period using intraday high and low prices we demonstrate changes in the federal funds rate consistent with our model s predictions we provide evidence of predictable changes in the variance of fed funds returns on a daily and intraday basis our analysis confirms that federal reserve requirements result in daily and intraday variances which are not constant

the micromechanics of the federal funds market implications for day of the week effects in funds rate variability the federal funds rate arguably is the most important interest rate in the u s capital market because it plays a central role in monetary policy and the term structure this paper examines the micromechanics of the funds market we show that in a continuous market with asynchronous trading regulatory constraints and accounting conventions that focus agents attention on discrete time instants have important implications for the dynamics of trading activity and realized market prices we also exhibit a model of the market that explains observed regularities in the intertemporal behavior of the funds rate

on the transition from local regular to global irregular fluctuations abstract we present a general framework for understanding the transition from local regular to global irregular chaotic behaviour of nonlinear dynamical models in discrete time the fundamental mechanism is the unfolding of quadratic tangencies between the stable and the unstable manifolds of periodic saddle points to illustrate the relevance of the presented methods for analysing globally a class of dynamic economic models we apply them to the infinite horizon model of woodford 1988 j economic theory 40 128 137 amended by grandmont et al 1998 j economic theory 80 to account for capital labour substitution so as to explain the appearance of irregular fluctuations through homoclinic bifurcations when parameter values are far away from local bifurcation points

a computational model of banks optimal reserve management policy abstract this paper uses numerical methods to model the demand for excess reserves by a representative bank in a framework that includes many realistic features of the current reserve market structure in the united states in particular the model incorporates a 14 day maintenance period and an accurate representation of carryover provisions we use the model to evaluate the effect of various changes to the operating environment increased uncertainty modified penalties and changes to policy paying interest on reserves

bank reserve adjustment process and the use of reserve carryover as a reserve management tool abstract in light of vogt s 1989 comment on our original paper we reexamine the empirical evidence on how banks use reserve carryover we dispute vogt s characterization of the evidence as contradictory and find nothing in the results to undermine our original conclusion that banks use the reserve carryover provision primarily to hedge reserves costs over time we also correct a computational error that appeared in the original paper

non linear endogenous fluctuations with free entry and variable markups abstract the paper explores the effects of markup variability associated with free entry of cournotian firms on the occurrence of local indeterminacy local hopf bifurcations and multiplicity of steady states it uses an overlapping generations model with capital in which differentiated intermediate goods are produced with constant marginal cost plus a positive fixed cost if the markup factor were constant the case of no free entry or the case of zero fixed costs leading to the perfectly competitive outcome no local endogenous fluctuations or multiplicity of steady states can emerge unless factors of production are complementary on the contrary with any positive variable market power indeterminacy and multiplicity of steady states is possible for any value of the elasticity of technological substitution and local hopf bifurcations may also emerge provided variable market power is high enough

collectivization and china s agricultural crisis in 1959 1961 the agricultural crisis in china in 1959 61 after the initial success of the collectivization movement resulted in 30 million extra deaths in this paper a game theory hypothesis proposes the main cause of this catastrophe i argue that because of the difficulty in supervising agricultural work the success of an agricultural collective depends on a self enforcing contract in which each one promises to discipline oneself a self enforcing contract however can be sustained only in a repeated game in the fall of 1958 the right to withdraw from a collective was deprived the nature of the collectivization was thus changed from a repeated game to a one time game as a result the self enforcing contract could not be sustained and agricultural productivity collapsed the empirical evidence is consistent with this hypothesis

equilibrium cycles in an overlapping generations economy with production abstract perfect foresight equilibrium trajectories of an overlapping generations model with production may include stable or unstable invariant closed curves these orbits are detected using the hopf bifurcation theorem where the parameter of bifurcation is purely technological the paper also proves that there is a stabilization policy that completely eliminates the cycle finally using a c e s production function it is shown that the range of values of the elasticity of substitution between capital and labor for which cycles may exist is bounded above

the carry forward provision and management of bank reserves the 1968 amendment to regulation d of the federal reserve code permits banks to carry forward one sequential reserve excess or deficiency into the next reserve accounting period this was intended to reduce the weekly pressure on individual banks to adjust their reserve position we find instead that the carry forward provision gives individual banks an incentive to alternate weekly between reserve excesses and reserve deficiencies thus the carry forward provision tends to induce reserve position adjustments even in the absence of changes in the level of deposits in addition the carry forward provision reduces the impact of interest rate changes on the desired level of excess reserves since the 1968 amendment to regulation d of the federal reserve code reserve requirements have been based on the level of deposits two weeks earlier1 and banks have been permitted to carry forward into the next accounting period one week a reserve excess or deficiency of not more than two percent of their required reserves a bank may not however carry forward two consecutive reserve excesses nor two consecutive reserve deficiencies this paper examines the effect of the carry forward provision on individual bank reserve positions following orr and mellon 7 we approach reserve position management by an individual bank as an inventory problem our analysis shows that the carryforward provision gives individual banks an incentive to alternate weekly between deficient and excess reserve positions this oscillatory behavior is observed in the available data our analysis also suggests that the carry forward provision reduces the impact of interest rate changes on the desired level of excess reserves and generally increases the pressure on individual banks to alter their reserve positions the carry forward provision has already received some attention in the literature coats 3 suggests that the potential to carry over reserves alters the meaning of free reserves while gilbert 5 argues that the reserve adjustment pressure is the same with or without the carry forward provision the effect of

indeterminacy in dynamic models when diamond meets ramsey abstract we consider an aggregate two periods overlapping generations model with endogenous labor consumption in both periods of life homothetic preferences and productive external effects coming from the average capital and labor we show that under realistic calibrations of the parameters in particular a large enough share of first period consumption over the wage income local indeterminacy of equilibria cannot occur with capital externalities alone it can nevertheless occur when there are only even very small vanishing labor externalities provided that the elasticity of capital labor substitution and the wage elasticity of the labor supply are large enough we also show that if labor externalities are slightly stronger but still small enough to be plausible and the elasticity of labor supply is larger local indeterminacy occurs in a cobb douglas economy finally we show that a locally indeterminate steady state is generically characterized by an under accumulation of capital it follows therefore that while agents live over a finite number of periods the conditions for the existence of locally indeterminate equilibria are very similar to those obtained within infinite horizon models and that from this point of view diamond meets ramsey

aggregate instability under balanced budget consumption taxes a re examination we re examine the destabilizing role of balanced budget fiscal policy rules based on consumption taxation using a one sector model with infinitely lived households we consider a specification of preferences derived from jaimovich 2008 14 and jaimovich and rebelo 2009 15 which is flexible enough to encompass varying degrees of income effect when the income effect is not too large we show that there exists a laffer curve which explains the multiplicity of steady states and that non linear consumption taxation may destabilize the economy promoting expectation driven fluctuations if the elasticity of intertemporal substitution in consumption is sufficiently larger than one and the tax rate is counter cyclical with respect to consumption numerical illustrations also show that consumption taxation may be a source of instability for most oecd countries for a wide range of structural parameters configurations we finally prove the robustness of our conclusions if we consider a discrete time setup

bank reserve adjustment process and the use of reserve carryover as a reserve management tool a comment abstract in an article published in this journal spindt and tarhan 1984 estimate a weekly model of the reserve adjustment behavior of several large money center banks during 1969 1979 their study is unique because of its use of micro data and because most previous studies of bank reserve management do not submit their models to an empirical test however spindt and tarhan s empirical results provide contradictory evidence on the fit of their model this paper explains that the empirical results may be due to a constraint that spindt and tarhan impose on some of the estimated coefficients of the model rather than the nature of the model itself

behavioural and material determinants of production relations in agriculture in this essay we develop a framework for analysing the major institutions governing the production and exchange of output and the primary factors of production in rural areas the analysis incorporates general considerations of risk and information constraints jointly with the principal material attributes of agriculture and of agricultural production factors the framework is used to analyse barriers to the existence of the major intertemporal and factor markets it is applied specifically to land scarce environments for which it provides an internally consistent explanation for many of the well documented institutional features of such settings in addition the analysis provides new implications for among other phenomena the inter relationships among ownership holdings operational scale family size and factor productivity for the scarcity of animal rental markets and use of animals as collateral for the renting out of land by small landowners and for the existence of plantations for certain crops

factor substitution and factor augmenting technical progress in the united states a normalized supply side system approach abstract using a normalized ces function with factor augmenting technical progress we estimate a supply side system of the u s economy from 1953 to 1998 avoiding potential estimation biases that

real business cycles and the animal spirits hypothesis abstract we calibrate a quantitative equilibrium macroeconomic model with an aggregate technology that is subject to increasing returns and show that this model may display fluctuations at business cycle frequencies even when there are no shocks to the fundamentals of the economy these fluctuations are due to the self fulfilling beliefs of investors which we call animal spirits we compare the impulse response functions predicted by our model and by two other more standard models with a four variable vector autoregression on u s data our animal spirits economy is the most successful of the three at matching broad features of the dynamic responses in the data journal of economic literature classification numbers e00 e3 e32

the demand for excess reserves this paper provides an estimate of the demand for excess reserves in the united states it finds that excess reserves are negatively related to the federal funds rate and positively related to transactions deposits it also finds that clearing needs significantly affect the demand for reserves with increases in excess reserves coming in response to lower required reserve balances and higher clearing volume some implications for monetary policy are discussed the demand for excess reserves is at the center of a number of issues in monetary economics while at one time it was featured primarily in the calculation of money multipliers more recently it has figured in federal reserve policy through its connection to the targeting of the federal funds rate each week the open market desk is obligated to forecast the demand for reserves including the demand for excess reserves to determine the amount of reserves to supply through open market operations this shift in the role of excess reserves is reflected worldwide a number of countries have abandoned reserve requirements altogether and the entire connection between monetary policy and the economy is through the demand for excess reserves this paper looks at recent data on excess reserves in the united states to determine the sensitivity of demand to changes in interest rates and other variables affecting the willingness to hold reserves the standard approach to modeling the demand for excess reserves is to treat it as part of a bank s liquidity management decision banks want to hold reserves to avoid overdraft or reserve deficiency penalties on their account at the central bank when facing uncertain flows of funds this general model of the precautionary demand for reserves was given by poole 1968 two basic propositions fall out of this approach the first is that the quantity of excess reserves demanded should vary inversely with short term interest rates which are the opportunity cost of holding reserves assuming that excess reserves pay no interest the second proposition is that since excess reserves are providing a buffer against uncertainty about reserve balances demand should increase with uncertainty the textbook model of excess reserve demand assumes that this uncertainty increases proportionately with the level of transactions deposits this paper finds support for both of these propositions in recent years excess reserves have increased with the growth in transactions deposits and were negatively related to interest rates decreasing roughly 120 million for each percentage point increase in the federal funds rate the role of excess reserves in monetary policy depends on the particular operational strategy adopted by the central bank the approach in the united states shifted in 1982 when the