environmental policy vs public pressure innovation and diffusion of alternative bleaching technologies in the pulp industry abstract in the late 1980s and early 1990s concern over dioxin in both paper products and wastewater led to the development of techniques that reduced the use of chlorine in the pulp industry both regulatory and consumer pressure motivated this change unlike previous studies we use patent data to examine the evolution of two competing bleaching technologies in five major paper producing countries both of which reduce the use of chlorine in the pulping process the use of patent data allows us to focus on the invention stage however adoption data are also presented and by the end of the 1990s nearly all pulp production in these countries used one of these technologies while previous studies emphasize the importance of regulation for inducing innovation here we find substantial innovation occurring before regulations were in place instead pressure from consumers and the public at large to reduce the chlorine content of paper drove invention prior to the introduction of environmental policies in any of the countries concerned

the empirical analysis of the determinants for environmental technological change a research agenda abstract technological change is usually considered a necessary albeit not sufficient condition for a transition to sustainability however the empirical analysis of the determinants to environmental technological change has not received too much attention in the environmental ecological economics literature and many open questions remain in this context based on a careful review of the literature this paper argues that further analysis should address several issues at different levels i e regarding the conceptual framework the thematic scope of the studies some methodological issues and other aspects related to the environmental policy variable first an integrated conceptual framework which takes into account the interplay between relevant variables influencing environmental technological change i e factors internal and external to the firm and characteristics of the environmental technologies and all the stages of this process with a greater emphasis on the invention stage should be developed other aspects should then be tackled including a focus on several themes i e a greater attention to cross sectoral technologies the barriers to different types of environmental technologies the international dimension of environmental technological change and environmental technological change in small and medium size enterprises methodological issues combination of case studies and econometric modelling and several issues related to the environmental policy variable

new issues in corporate finance flow of funds data are used to compare methods of finance in 5 countries over the period 1970 to 1985 many of the problems associated with previous studies are avoided by estimating net instead of gross financing proportions the degree of consolidation of accounts reciprocal arrangements between borrowers and lenders and compensating deposit requirements on borrowers no longer distort financing patterns corrections for inflation are provided by employing flow rather than stock figures and using own aggregation procedures to derive stock measures significant variations in financing emerge these are not readily explained by traditional descriptions of corporate finance in particular taxation as an alternative the paper suggests that relationships between borrowers and lenders establish forms of commitment that are conducive to the provision of long term finance the separation between investment and finance which has been the starting point of corporate finance theory is untenable in a multiperiod context in which terms of finance define future allocation of control

coordination and crisis in monetary unions we characterize fiscal and monetary policy in a monetary union with the potential for rollover crises in sovereign debt markets member country fiscal authorities lack commitment to repay their debt and choose fiscal policy independently a common monetary authority chooses inflation for the union also without commitment we first describe the existence of a fiscal externality that arises in the presence of limited commitment and leads countries to over borrow this externality rationalizes the imposition of debt ceilings in a monetary union we then investigate the impact of the composition of debt in a monetary union that is the fraction of high debt versus low debt members on the occurrence of self fulfilling debt crises we demonstrate that a high debt country may be less vulnerable to crises and have higher welfare when it belongs to a union with an intermediate mix of high and low debt members than one where all other members are low debt this contrasts with the conventional wisdom that all countries should prefer a union with low debt members as such a union can credibly deliver low inflation these findings shed new light on the criteria for an optimal currency area in the presence of rollover crises

the new institutional economics this outstanding book presents new original contributions from some of the world s leading economists including ronald coase douglass c north masahiko aoki oliver e williamson and harold demsetz it demonstrates the extent and depth of the new institutional economics research programme which is having a worldwide impact on the economics profession

dynamics of brand competition effects of unobserved social networks brand competition is modelled using an agent based approach in order to examine the long run dynamics of market structure and brand characteristics a repeated game is designed where myopic firms choose strategies based on beliefs about their rivals and consumers consumers are heterogeneous and can observe neighbour behaviour through social networks although firms do not observe them the social networks have a significant impact on the emerging market structure presence of networks tends to polarize market share and leads to higher volatility in brands yet convergence in brand characteristics usually happens whenever the market reaches a steady state scale free networks accentuate the polarization and volatility more than small world or random networks unilateral innovations are less frequent under social networks

regional debt in monetary unions is it inflationary this paper studies the inflationary implications of interest bearing regional debt in a monetary union is this debt simply backed by future taxation with non inflationary consequences or will the circulation of region debt induce monetization by a central bank we argue here that both outcomes can arise in equilibrium in the model economy there are multiple equilibria which reflect the perceptions of agents regarding the manner in which the debt obligations will be met in one equilibrium termed ricardian the future obligations are met with taxation by a regional government while in the other termed monetization the central bank is induced to print money to finance the region s obligations the multiplicity of equilibria reflects a commitment problem of the central bank a key indicator of the selected equilibrium is the distribution of the holdings of the regional debt we show that regional governments anticipating central bank financing of their debt obligations have an incentive to create excessively large deficits we use the model to assess the impact of policy measures within a monetary union

does competition from new equity mitigate bank rent extraction insights from japanese data previous research shows that bank information production mitigates asymmetric information problems however this literature has ignored the concern that firms with better growth prospects are more vulnerable to bank rent extraction this paper points out that funding competition from new equity as an effective natural mechanism solves this important concern using japanese data from 1983 to 1997 we show that the relationship between loan to debt ratio and growth while starting significantly negative consistent with holdup theory turns significantly positive towards the high end of the growth spectrum we confirm that high growth firms raise more new equity than do low growth firms and use more equity relative to bonds in external finance this is consistent with a generalized myers majluf framework these results suggest that for high growth firms when competition from public debt lessens due to increased growth based valuations competition from new equity steps in to restrain bank rent extraction

history friendly models of industry evolution the computer industry the model presented in this paper is the first of a new generation of evolutionary economic models history friendly models history friendly models are formal models that aim to capture in stylized form qualitative and appreciative theories about the mechanisms and factors affecting industry evolution technological advance and institutional change put forth by empirical scholars of industrial economics technological change business organization and strategy and other social scientists in this paper we have analyzed the long term evolution of the computer industry in particular we have examined the emergence of a dominant firm in mainframes the introduction of a major innovation microprocessor the opening up of a new market segment personal computers ad the competition there between newcomers and diversified old established firms we have taken a body of verbal appreciative theorizing developed a formal representation of that theory and found that the formal version of that theory is consistent and capable of generating the stylized facts the appreciative theory purports to explain going through this analytic exercise has significantly sharpened our theoretical understanding of the key factors behind salient aspects of the evolution of the computer industry copyright 1999 by oxford university press

interest on reserves and sunspot equilibria friedman s proposal reconsidered friedman s 1960 proposal to pay interest on required reserves is considered in a setting that eliminates the indeterminacy of steady state equilibrium discussed by sargent and wallace 1985 in an overlapping generations model where the real rate of interest is technologically determined the payment of interest on reserves results in a determinate pareto optimal steady state equilibrium however interest payments on reserves reduce the steady state welfare of all young agents and for many economies result in the existence of stationary sunspot equilibria this is the case even if such equilibria cannot exist when reserves do not earn interest

multiple equilibria and persistence in aggregate fluctuations this paper explores the impact of incomplete markets and strong complementarities on the time series properties of aggregate activity we consider an economy which consists of a large number of industries whose production functions both are nonconvex and exhibit localized technological complementarities the productivity of each industry at t is determined by the production decisions of technologically similar industries at t 1 no markets exist to coordinate production decisions this feature implies that aggregate output dynamics for the model are quite different from those predicted by the associated arrow debreu economy first multiple stochastic equilibria exist in aggregate activity these equilibria are distinguished by differences in the mean and the variance of output second output movements are persistent as aggregate productivity shocks indefinitely affect real activity by shifting the economy across equilibria as a result the model can exhibit periods of boom and depression this abstract was borrowed from another version of this item

the discrete charm of the bourgeoisie quantum and continuous perspectives on innovation and growth this paper discusses the relative merits of discrete versus continuous perspectives on innovation technical change and economic growth it discusses the innovation time series literature in some detail to extract the continuous and clustering properties of the historical record on innovation it then proposes a mosaic avalanche model based on percolation theory and self organized criticality to address this question

public goods in networks this paper considers incentives to provide goods that are non excludable along social or geographic links we find first that networks can lead to specialization in public good provision in every social network there is an equilibrium where some individuals contribute and others free ride in many networks this extreme is the only outcome second specialization can benefit society as a whole this outcome arises when contributors are linked collectively to many agents finally a new link increases access to public goods but reduces individual incentives to contribute hence overall welfare can be higher when there are holes in a network

the governance structure of the japanese financial keiretsu abstract we rationalize the cross holdings of debt and equity within the japanese keiretsu as a contingent governance mechanism through which internal discipline is sustained over time the reciprocal allocation of control rights supports cooperation and mutual monitoring among managers through a coalition enforced threat of removal from control in financial distress this threat is less effective and the governance mode shifts to hierarchical enforcement under main bank leadership the model is consistent with the capital structure the distribution of claims the extent of intragroup trading and patterns of investor intervention within the groups

institutional investment patterns and corporate financial behavior in the united states and japan abstract this paper examines the agency problem between shareholders and debtholders of japanese and u s firms whereas u s institutional investors are restricted from doing so japanese financial institutions take large equity positions in firms to which they lend particularly in firms more susceptible to the agency problem debt ratios of u s firms are negatively related to the firm s potential to engage in risky suboptimal investments whereas japanese debt ratios show no such relation the evidence is consistent with the notion that the agency problem is mitigated to a greater degree in japan than in the u s

a comparison of the dynamics of industrial clustering in computing and biotechnology abstract this paper compares the dynamics of the process by which industrial clusters emerged in the us computing and biotechnology industries it examines whether new companies are attracted by industry strength in particular sectors or by the strength of the science base at particular locations in biotechnology it also compares the growth of incumbent firms in the two industries and asks whether growth is boosted by being within a cluster the paper finds that within computing there are some important cross sectoral effects on entry while in biotechnology these cross sectoral effects are more limited in biotechnology the science base plays an important role in promoting entry the growth of incumbent firms in both industries is promoted by strength in the company s own sector and cross sectoral effects and the role of the science base are negligible

banking relationships and access to equity capital markets evidence from japan s main bank system abstract we study the role of banking relationships in ipo underwriting when a firm in japan goes public it can engage an investment bank that is related through a common main bank or can select an alternative investment bank the main bank relationship can be an efficient way for the investment bank to acquire information generated by the main bank but may give rise to conflicts of interest we find that main bank relationships give small issuers increased access to equity capital markets but that issuers of large ipos often switch to non related investment banks that are capable of managing large offerings while investment banks seek to exploit bargaining power with related issuers issuers respond to expected high issue cost by switching to non related investment banks the net result is that total issue costs through related and non related investment banks are similar with respect to aftermarket performance and use of proceeds we find no evidence of conflict of interest or self dealing for either the main bank or the investment bank

discretionary policy in a monetary union with sovereign debt this paper examines the interactions between multiple national fiscal policymakers and a single monetary policy maker in response to shocks to government debt in some or all of the countries of a monetary union we assume that national governments respond to excess debt in an optimal manner but that they do not have access to a commitment technology this implies that national fiscal policy gradually reduces debt the lack of a commitment technology precludes a random walk in steady state debt but the need to maintain national competitiveness avoids excessively rapid debt reduction if the central bank can commit it adjusts its policies only slightly in response to higher debt allowing national fiscal policy to undertake most of the adjustment however if it cannot commit then optimal monetary policy involves using interest rates to rapidly reduce debt with significant welfare costs we show that in these circumstances the central bank would do better to ignore national fiscal policies in formulating its policy

the agenda for growth theory a different point of view it is argued here that the basic assumptions of neoclassical growth theory inherently limit the ability of models within that theory to cast light on economic growth as we have experienced it this holds for the new growth theory as well as the older growth theory of the 1950s and 190js it is proposed that to make real headway with understanding economic growth a growth theory needs the following elements 1 the ability to treat technological advance as an essentially disequilibrium process 2 to incorporate a theory of the firm in which firm capabilities and differences across firms are central elements and 3 to incorporate into the theory a richer body of institutions than currently are treated in standard growth theory including at the least universities copyright 1998 by oxford university press

bank information monopolies and the mix of private and public debt claims this article examines the determinants of the mix of private and public debt using detailed information on the debt structure of 250 publicly traded corporations from 1980 through 1990 we find that the relationship between bank borrowing and the importance of growth opportunities depends on the number of banks the firm uses and whether the firm has public debt outstanding for firms with a single bank relationship the reliance on bank debt is negatively related to the importance of growth opportunities in contrast among firms borrowing from multiple banks the relationship is positive

innovation diversity and diffusion a self organisation model a number of features of innovation diffusion are identified appropriability diversity expectations selection learning and spillover externalities a dynamic model is formul ated to embed the diffusion question into a more general framework of disequilibrium competition the model incorporates distinct vintage structures reflecting a change in technological trajectory learning by using a nd expectations driven investment rules of thumb simulation studies reveal robust quasi logistic curves but a complicated pattern of net market share gains and losses uncertainty regarding the rationality of early or late adoption it is argued ensures that the requisite behavioral variety is present to generate these diffusion patterns copyright 1988 by royal economic society

toward an economic model of the japanese firm i owe a great deal to professor moses abramovitz who suggested that i write this article i appreciate his constant encouragement and guidance which aided me throughout its preparation i am also indebted to three anonymous referees of the journal and to professors ryutaro komiya and michael riordan for their critical comments and helpful suggestions needless to say i am solely responsible for the views expressed in this paper

the transition to chlorine free pulp revisited nordic heterogeneity in environmental regulation and r d collaboration the purpose of this paper is to analyze the development paths leading to the transition to cleaner bleaching technologies in the pulp industry it devotes particular attention to the key features o

market organisation and trading relationships in this paper we give a theoretical model of buyers behaviour on a market for a perishable good where no prices are posted we show that if buyers learn from their own previous experience there is a sharp division between those who learn to be loyal to certain sellers and those who continue to shop around this feature remains in more general models which are simulated and is consistent with empirical data from the marseille fish market

high exchange rate volatility and low pass through abstract two specifications of an open economy model are shown to generate high exchange rate volatility and low exchange rate pass through erpt in the model price discrimination causes erpt to be incomplete in both the short and the long run in the short run a small amount of nominal rigidities is enough to reduce erpt sharply still exchange rate depreciation worsens the terms of trade consistent with the evidence possible biases from omitted variables and measurement error in the erpt empirical literature due to data limitations are investigated using model generated time series estimates of erpt coefficients can be quite different from true parameters and are sensitive to the shocks driving the economies estimates can nonetheless detect key structural features of the models

what s different about banks abstract negotiable certificates of deposit cd s trade in the capital market in competition with other securities like commercial paper and bankers acceptances if cd s must pay lenders competitive monetary interest the reserve tax on cd s is borne by bank borrowers viability of the tax means there must be something special about bank loans that makes some borrowers willing to pay higher interest rates than those on other securities of equivalent risk moreover there must be something special about banks that prevents other intermediaries from competing to assure that it never pays to finance loans with cd s

emergence of innovation networks from r d cooperation with endogenous absorptive capacity this paper extends the existing literature on strategic r d alliances by presenting a model of innovation networks with endogenous absorptive capacity the networks emerge as a result of dynamic cooperation between firms occupying different locations in the knowledge space partner selection is driven by absorptive capacity which is itself influenced by cognitive distance and r d investment allocation under different knowledge regimes we examine the structure of networks that emerge and how firms perform within such networks we find networks that exhibit small world properties which are generally robust to changes in the knowledge regime certain network strategies such as occupying brokerage positions or maximising accessibility to potential partners pay off especially in young industries with limited involuntary but abundant voluntary spillovers this particular result is driven by endogenous absorptive capacity

overturning mundell fiscal policy in a monetary union central to ongoing debates over the desirability of monetary unions is a supposed trade off outlined by mundell 1961 a monetary union reduces transactions costs but renders stabilization policy less effective if shocks across countries are sufficiently correlated then according to this argument delegating monetary policy to a single central bank is not very costly and a monetary union is desirable this paper explores this argument in a setting with both monetary and fiscal policies in an economy with monetary policy alone we confirm the presence of the trade off and find that indeed a monetary union will not be welfare improving if the correlation of national shocks is too low however fiscal interventions by national governments combined with a central bank that has the ability to commit to monetary policy overturn these results in equilibrium such a monetary union will be welfare improving for any correlation of shocks

network externality perspective of feed in tariffs fit instruments some observations and suggestions abstract existing energy policy frameworks revolving around the acceleration of deployment 1 of renewable energy technology can be broadly classified as the quantity vs price approach with this brief viewpoint this paper suggests another perspective of viewing these instruments in terms of a more fundamental basis whether the deployment in capacity is in terms of a cost minimization approach or a network externality approach we suggest that the generic price or feed in tariff fit approach in subsidizing renewable electricity generation and associated income would create a bandwagon or self propagation effect among users rendering the renewable energy technology spreads like a software or information technology our objective is to raise awareness of this technology dynamics oriented perspective in renewable deployment supplementing the conventional installation subsidies perspective we hope that it would inspire more empirical works and studies relating to the policy implications of this viewpoint

planning to cheat eu fiscal policy in real time using real time data from europe s stability and convergence programs we explore how fiscal plans and their implementation in the eu are determined we find that 1 implemented budgetary adjustment falls systematically short of planned adjustment and this shortfall increases with the projection horizon 2 variability in the eventual fiscal outcomes is dominated by the implementation errors 3 there is a limited role for traditional political variables 4 stock flow adjustments are more important when plans are more ambitious and 5 most importantly both the ambition in fiscal plans and their implementation benefit from stronger national fiscal institutions we emphasize also the importance of credible plans for the eventual fiscal outcomes roel beetsma massimo giuliodori and peter wierts

not for profit entrepreneurs abstract entrepreneurs who start new firms may choose not for profit status as a means of committing to soft incentives such incentives protect donors volunteers consumers and employees from ex post expropriation of profits by the entrepreneur we derive conditions under which completely self interested entrepreneurs opt for not for profit status despite the fact that this status limits their ability to enjoy the profits of their enterprises we also show that even in the absence of tax advantages unrestricted donations would flow to non profits rather than for profit firms because donations have more significant influence on the decisions of the non profits

crime and social interactions the high variance of crime rates across time and space is one of the oldest puzzles in the social sciences this variance appears too high to be explained by changes in the exogenous costs and benefits of crime we present a model where social interactions create enough covariance across individuals to explain the high cross city variance of crime rates this model provides an index of social interactions which suggests that the amount of social interactions is highest in petty crimes moderate in more serious crimes and almost negligible in murder and rape

learning from neighbours when payoffs from different actions are unknown agents use their own past experience as well as the experience of their neighbours to guide their decision making in this paper we develop a general framework to study the relationship between the structure of these neighbourhoods and the process of social learning we show that in a connected society local learning ensures that all agents obtain the same payoffs in the long run thus if actions have different payoffs then all agents choose the same action and social conformism obtains we develop conditions on the distribution of prior beliefs the structure of neighbourhoods and the informativeness of actions under which this action is optimal in particular we identify a property of neighbourhood structures local independencewhich greatly facilitates social learning simulations of the model generate spatial and temporal patterns of adoption that are consistent with empirical work

from simplistic to complex systems in economics the applicability of complex systems theory in economics is evaluated and compared with standard approaches to economic theorising based upon constrained optimisation a complex system is defined in the economic context and differentiated from complex systems in physio chemical and biological settings it is explained why it is necessary to approach economic analysis from a network rather than a production and utility function perspective when we are dealing with complex systems it is argued that much of heterodox thought particularly in neo schumpeterian and neo austrian evolutionary economics can be placed within a complex systems perspective upon the economy the challenge is to replace prevailing simplistic theories based in constrained optimisation with simple theories derived from network representations in which value is created through the establishment of new connections between elements

cooperation between rivals informal know how trading it has long been recognized that it is difficult for an innovating firm to fully appropriate the benefits arising from its innovations and that desired research might therefore not be performed nelson 1959 pp 297 306 one sometimes possible solution to this dilemma is cooperative r d conducted by firms who share the costs and benefits of particular r d projects johnson 1973

r d networks we develop a model of strategic networks that captures two distinctive features of interfirm collaboration bilateral agreements and nonexclusive relationships our analysis highlights the relationship between market competition firms incentives to invest in r d and the architecture of collaboration networks in the absence of firm rivalry the complete network where each firm collaborates with all others is uniquely stable industry profit maximizing and efficient by contrast under strong market rivalry the complete network is stable but intermediate levels of collaboration and asymmetric networks are more attractive from a collective viewpoint this suggests that competing firms may have excessive incentives to form collaborative links

universal banking and firm risk taking abstract this paper analyzes the welfare implications of banks taking equity stakes in firms under conditions of imperfect information and moral hazard two cases of bank control over investment decisions are analyzed in the first the bank does not control the investment decisions of the firm here the investment efficiency is higher and bank risk is lower for an optimal positive level of bank equity holdings however in the case when the bank has veto power over investment proposals by the firm there is a trade off between increased investment efficiency and increased bank risk

breaking the waves a poisson regression approach to schumpeterian clustering of basic innovations the schumpeterian theory of long waves has given rise to an intense debate on the existence of clusters of basic innovations silverberg and lehnert have criticised the empirical part of this literature on several methodological accounts in this paper we propose the methodology of poisson regression as a logical way of incorporating this criticism we construct a new time series for basic innovations based on previously used time series and use this to test the hypothesis that basic innovations cluster in time we define the concept of clustering in various precise ways before undertaking the statistical tests the evidence we find supports only the weakest of our clustering hypotheses i e that the data display overdispersion we thus conclude that the authors who have argued that a long wave in economic life is driven by clusters of basic innovations have stretched the statistical evidence too far

fiscal and monetary rules for a currency union abstract this paper addresses the optimal joint conduct of fiscal and monetary policy in a two country model of a currency union with staggered price setting and distortionary taxes a tractable linear quadratic approximation permits a representation of the optimal policy plan in terms of targeting rules in the optimal equilibrium monetary policy should achieve aggregate price stability following a flexible inflation targeting rule fiscal policy should stabilize idiosyncratic shocks allowing for permanent variations of government debt but should abstain from creating inflationary expectations at the union level simple policy rules can approximate the optimal commitment benchmark through a mix of strict inflation targeting and flexible budget rules conversely the welfare costs of balanced budget rules are at least one order of magnitude higher than conventional estimates of the costs of business cycle fluctuactions

positive information from equity issue announcements abstract the myers and majluf 1984 model predicts a nonpositive price reaction to an announcement of a new issue of equity this paper shows that the myers and majluf result is a direct outcome of their assumption that all potential projects facing the firm have a nonnegative net present value refining the myers and majluf model by allowing for the realistic possibility of potential projects having negative net present values leads to different predictions the refined model predicts positive as well as negative stock price responses consistent with recent empirical evidence concerning the stock price effects of new stock issues

optimal fiscal and monetary policy equivalence results in this article we analyze the implications of price setting restrictions for the conduct of cyclical fiscal and monetary policy we consider standard monetary economies that differ in the price setting restrictions imposed on the firms we show that independently of the degree or type of price stickiness it is possible to implement the same efficient set of allocations and that each allocation in that set is implemented with policies that are also independent of the price stickiness in this sense environments with different price setting restrictions are equivalent

institutionalizing majority rule a social choice theory with policy implications recent results in the theory of pure majority rule demonstrate the genericity of majority rule cycles as established by richard mckelvey 1979 l cohen 1979 and n schofield 1978 majority rule nearly always breaks down and when it does the breakdown is complete the theorems given below may be summed up in the following three assertions 1 for any policy or alternative there exists a set of alternatives that command a majority of votes against it 2 this situation is not an abberation but rather is the general case and 3 it is almost always possible in multidimensional choice settings to find a sequence of votes that begins at any point and ends at any other point majority rule may wander anywhere yet when these theoretical assertions are applied to legislatures based upon majority rule they contain no obvious policy content or predictions the key insight which we elaborate in this paper is that majority rule is not self implementing there is no majority rule machine into which we feed preferences and out of which come outcomes rather there is a complex series of institutional arrangements underpinning the operation of majority rule legislatures arrangements from which theorists have mistakenly abstracted in fact majority rule theorists have not focused at all on institutional details instead they have restricted themselves to the majority rule dominance relation operating under the implicit assumption that what may be proved true about this relation is true of all legislative institutions based upon it in this paper we show that this assumption is misleading and that the the results based upon it must be reinterpreted in order to be useful for understanding real world committees and legislatures

insulation impossible monetary policy and regional debt spillovers in a federation this paper studies the effects of monetary policy in the presence of debt spillovers within a monetary union when capital markets are integrated the fiscal policy of any member country will generally influence equilibrium wages and interest rates across the whole union we ask whether there exists a monetary policy which can offset these spillovers within a general class of monetary policy rules there does not exist one that completely insulates agents in one region from fiscal policy in the other these debt spillovers will affect welfare through two channels intertemporal efficiency and redistribution

trading uncertainty and market form this paper examines purely random multilateral matching among a large number of informationally isolated individuals who desire to trade the structure of links among traders is characterized by means of random graphs defined by a parameter that is chosen by prospective traders trading groups of all sizes including pairs as a special case result but the size distribution may contain a mass point at infinity that is within a certain subset of the entire economy trading uncertainty is entirely eliminated the equilibrium price distribution consists of a mass point and of a mixture of densities copyright 1990 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

why do firms do basic research with their own money abstractthe question to be addressed is why do private firms perform basic research with their own money interest in this question derives from both analytical and utilitarian considerations there is empirical evidence in the united states which provides the main context for this paper supporting the view that basic research makes a significant contribution to the productivity growth of the economy 4 7 it is widely held that social returns from basic research are significant and higher than private returns and it is for this reason that most such activities continue to be financed by the taxpayer this also implies that measures aimed at increasing basic research by the private sector will be welfare improving in the united states the federal government in the years since the second world war has provided the vast majority of all funds devoted to basic research although the federal share has been declining in recent years and although that share is at its lowest level in about 20 years it still constitutes about two thirds of the total 10 this abstract was borrowed from another version of this item

do banking shocks affect borrowing firm performance an analysis of the japanese experience from 1990 to 1993 the typical firm on the tokyo stock exchange lost more than half of its value and banks experienced severe adverse shocks we show that firms whose debt had a higher fraction of bank loans in 1989 performed worse from 1990 to 1993 and also invested less than other firms did this effect holds when we control for variables that affect firm performance we show further that exogenous shocks to banks during the negotiations leading to the basle accord affected bank borrowers significantly copyright 2000 by university of chicago press

the effect of network structure in industrial diffusion processes abstract the development and diffusion of innovations involves groups of organizations with many different roles who interact with each other suppliers adopters third parties etc this paper examines the nature of the communication networks that exist between adopting organizations and from third parties and suppliers to adopters quantitative models of diffusion often assume that information about innovations flows along pre existing links that this information flows from adopters to non adopters directly and that there is perfect mixing in the population i e every actor has an equal chance of communicating with every other actor these are strong assumptions which should be subject to testing we investigate the impact of differing network topologies of communications and alternative models of social contagion on observed adoption patterns network topologies are also extended beyond the focal industry to include suppliers consultants and other customers we use a simulation model to test the effect of departures from traditional assumptions on the diffusion pattern and undertake an empirical field study to examine the prevalence of those departures in one specific industry our simulation findings suggest that network structure can have a substantial effect on the manner in which innovations diffuse while innovation specific communication links and communication through third parties does not change the shape of the penetration trajectory as much as it alters the places in the process where salesforce effort can offer the most leverage the empirical study shows strong evidence of imperfect mixing that both pre existing and innovation specific communication links are used and that communication through third parties may be as important to the diffusion process as direct links from adopters to potential adopters

innovation diffusion in heterogeneous populations contagion social influence and social learning new ideas products and practices take time to diffuse a fact that is often attributed to some form of heterogeneity among potential adopters this paper examines three broad classes of diffusion models contagion social influence and social learning and shows how to incorporate heterogeneity into each at a high level of generality without losing analytical tractability each type of model leaves a characteristic footprint on the shape of the adoption curve which provides a basis for discriminating empirically between them the approach is illustrated using the classic study of ryan and gross 1943 on the diffusion of hybrid corn

effects of main bank switching on new business bankruptcy abstractthis paper examines the effects of main bank switching on the probability of bankruptcy of new small businesses using a propensity score matching estimation approach we use a unique firm level dataset of approximately 1 000 small and medium sized enterprises smes incorporated in japan these smes are young and unlisted just after incorporation we find that switching main bank relationships increases the probability of firm bankruptcy in addition the result holds only when the relationship between the firm and its main bank is terminated specifically the probability of bankruptcy increases when firms switch their main banks to financial institutions with which they have not previously transacted and when the ex post main banks are not affiliated financial institutions of their ex ante main banks these results may be because such switching worsens the financial condition of client firms and thus it leads to bankruptcy

unconventional fiscal policy at the zero bound when the zero lower bound on nominal interest rates binds monetary policy cannot provide appropriate stimulus we show that in the standard new keynesian model tax policy can deliver such stimulus at no cost and in a time consistent manner there is no need to use inecient policies such as

making sense of institutions as a factor shaping economic performance abstract there has recently been a resurgence of interest in how institutions affect economic performance a review of this literature reveals that the concept of an institution means different things to different scholars both within economics and across the social sciences we discuss what factors unify the different definitions of institutions and develop a concept of institutions useful for the analysis of economic performance and economic growth in particular specifically we develop the notion of institutions as standard social technologies economic growth results from the co evolution of physical and social technologies

credit and efficiency in centralized and decentralized economies we study a credit model where because of adverse selection unprofitable projects may nevertheless be financed indeed they may continue to be financed even when shown to be low quality if sunk costs have already been incurred we show that credit decentralization offers a way for creditors to commit not to refinance such projects thereby discouraging entrepreneurs from undertaking them initially thus decentralization provides financial discipline nevertheless we argue that it puts too high a premium on short term returns the model seems pertinent to two issues soft budget constraint problems in centralized economies and differences between anglo saxon and german japanese financing practices

are there schumpeterian waves of innovations this paper responds to a recent criticism of the empirical evidence of bunching of innovations an examination of various long run innovation samples shows that there is indeed very poor evidence of innovation waves in the time before the mid 19th century thereafter however two long waves of major innovations occur both having a lead of approximately 10 15 years over the economic long wave as identified in an earlier study a t test confirms that these waves can be clearly distinguished from random fluctuations in the final section some suggestions for further research are outlined

monetary and fiscal policy interactions in a micro founded model of a monetary union abstract this paper analyzes in detail the mechanisms behind fiscal stabilization policy and the role of policy commitment in a micro founded new keynesian model of a two country monetary union which is hit by supply shocks we also explore the determinants of the gains from fiscal stabilization while monetary policy with identical union members is concerned with stabilizing the union wide economy fiscal policy aims at stabilizing inflation differences and the terms of trade besides exploring optimal policies we also consider monetary and fiscal rules we study these rules both under coordination and non coordination by the fiscal authorities

structure learning and the speed of innovating a two phase model of collective innovation using agent based modeling continual increase in the complexity of technologies and innovations has resulted in actors i e individuals or organizations becoming more dependent on other actor s knowledge and skills to complement their own skills in the innovation process as a result networks have become more and more prominent in affecting the innovation process conceptualizing innovation as a search and learning process that results in a successful product we introduce a two phase model of collective innovation that accounts for the deliberateness of the innovation process using agent based modeling we explore how interaction structure among a group of actors affects the speed at which the group can collectively innovate in addition we present results from counterfactual simulations to highlight the importance of deliberate search and changing realized connections in modeling collective innovation process moreover we discuss the effects of the structure under different mechanisms of learning and different levels of actor s learning capabilities copyright 2010 the author 2010 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

toward a theory of induced institutional innovation in this paper we elaborate a theory of institutional innovation in which changes in the demand for institutional innovation are induced by changes in relative resource endowments and by technical change we illustrate from agricultural history how changes in resource endowments and technical change have induced changes in private property rights and in the development of non market institutions we also consider the impact of advances in social science knowledge and of cultural endowments on the supply of institutional change in a final section we present the elements of a model of institutional innovation that maps the relationships among resource endowments cultural endowments technology and institutions

does the new economy measure up to the great inventions of the past abstract during the four years 1995 99 u s productivity growth experienced a strong revival and achieved growth rates exceeding that of the golden age of 1913 72 accordingly many observers have declared the new economy to be an industrial revolution even more important than the second industrial revolution of 1860 1900 which made the golden age of productivity growth possible this paper dissects the recent productivity revival subtracts out a cyclical component and concludes that there is no revival of the productivity growth trend in the 88 percent of the private economy lying outside of the durables manufacturing sector the paper explains this surprising finding by pointing to limitations in computers and the internet in comparison with the great inventions of the past

optimal monetary and fiscal policy in a currency union we lay out a tractable model for the analysis of optimal monetary and fiscal policy in a currency union the monetary authority sets a common interest rate for the union whereas fiscal policy is implemented at the country level through the choice of government spending in the presence of country specific shocks and nominal rigidities the policy mix that is optimal from the viewpoint of the union as a whole requires that inflation be stabilized at the union level by the common central bank whereas fiscal policy has a country specific stabilization role one beyond the efficient provision of public goods

top management compensation and capital structure the interrelationship between top management compensation and the design and mix of external claims issued by a firm is studied the optimal managerial compensation structures depend on not only the agency relationship between shareholders and management but also the conflicts of interests which arise in the other contracting relationships for which the firm serves as a nexus we analyze in detail the optimal management compensation for the cases when the external claims are 1 equity and risky debt and 2 equity and convertible debt in addition to the role of aligning managerial incentives with shareholder interests managerial compensation in a levered firm also serves as a precommitment device to minimize the agency costs of debt the optimal management compensation derived has low pay performance sensitivity with convertible debt instead of straight debt the corresponding optimal managerial compensation has high pay to performance sensitivity a negative relationship between pay performance sensitivity and leverage is derived our results provide a reconciliation of the puzzling evidence of jensen and murphy 1990 with agency theory other testable implications include 1 a relationship between the risk premium in corporate bond yields and top management compensation structures and 2 the announcement effect of adoption of executive stock option plans on bond prices the model yields implications for management compensation in banks and federal deposit insurance reform our results explain the dynamics of top management compensation in firms going through financial distress and reorganization

coordination of fiscal policies in a world economy abstract this paper provides a simple counterexample to the standard belief that in a world economy in which all countries are small strategic interactions between policymarkers are trivial and thus cooperative and non cooperative government policies coincide it is well known that this holds for tariff policies however this paper demonstrates the result does not apply to fiscal policy in addition the paper analyzes how optimally coordinated fiscal policies differ from non cooperative policies it finds that relative to optimally coordinated levels non cooperative government spending can be too high or too low depending on the sign of a transmission effect which captures the overall effect countries actions have on each other

monetary and fiscal policies interaction in monetary unions in this paper the literature on the interaction between monetary and fiscal policies in a monetary union is surveyed by adopting the concept of symbiosis as a starting point the paper highlights the importance of uncertainty policy makers preferences and targets then the role of commitment to policy rules and coordination is addressed the analysis also focuses on the importance of the data considered for the generation of the policy mix as a final step the paper discusses the main results in the literature on public debt management in a monetary union all the reported theoretical results are then adopted to retrieve policy and institutional implications for the european monetary union

a penny for your quotes patent citations and the value of innovations the use ofpatents in economic research has been seriously hindered by the fact that patents vary enormously in their importance or value and hence simple patent counts cannot be informative about innovative output the purpose of this article is to put forward patent counts weighted by citations as indicators of the value of innovations thereby overcoming the limitations of simple counts the empirical analysis of a particular innovation computed tomography scanners indeed shows a close association between citation based patent indices and independent measures of the social value of innovations in that field moreover the weighting scheme appears to be nonlinear increasing in the number of citations implying that the informational content of citations rises at the margin as in previous studies simple patent counts are found to be highly correlated with contemporaneous rd however here the association is within afield over time rather than cross sectional

a strategic model of social and economic networks we study the stability and efficiency of social and economic networks when self interested individuals can form or sever links first for two stylized models we characterize the stable and efficient networks there does not always exist a stable network that is efficient next we show that this tension persists generally to assure that there exists a stable network that is efficient one is forced to allocate resources to nodes that are not responsible for any of the production we characterize one such allocation rule the equal split rule and another rule that arises naturally from bargaining of the players

understanding the rise and decline of the japanese main bank system the changing effects of bank rent extraction this paper shows how main bank rent extraction affects corporate decisions about investment and financing during financial regulatory reform our model predicts that limited loanable funds can initially contain main bank controlled overinvestment even when new equity is available to the firm abundant funds facilitate overinvestment to the detriment of firm profitability a shift of control rights back to the firm due to financial deregulation produces an equity for upside potential and bank debt for downside risk bias against the banks a stock market and real estate boom in japan made it harder than ever for the banks to diversify risk the insights from this analysis help explain why japan s main bank system was beneficial in the capital constrained postwar period but became harmful during the capital abundant and even bubbly 1980s and why the adverse shocks of the post deregulation 1990s had such severe effects on the banking system

policy entrepreneurship in the co evolution of institutions preferences and technology comparing the diffusion of totally chlorine free pulp bleaching technologies in the us and sweden abstract this paper uses the concept of policy entrepreneurship to explain the social processes underlying sustainable technical change in the pulp and paper industry in the 1990s it presents a detailed case study on the differences in the transition to and diffusion of totally chlorine free tcf pulp bleaching methods in sweden and the usa this change was sustained in the former while it was almost absent in the latter the paper studies the causes for this difference it looks at the complex coevolution of technology institutions and consumer preferences that has taken place in both countries and draws conclusions on how transitions to sustainable paths in production and consumption may be supported by economic and social policy

corporate structure liquidity and investment evidence from japanese industrial groups this paper presents evidence suggesting that information and incentive problems in the capital market affect investment we come to this conclusion by examining two sets of japanese firms the first set has close financial ties to large japanese banks that serve as their primary source of external finance and are likely to be well informed about the firm the second set of firms has weaker links to a main bank and presumably faces greater problems raising capital investment is more sensitive to liquidity for the second set of firms than for the first set the analysis also highlights the role of financial intermediaries in the investment process

on the costs of a bank centered financial system evidence from the changing main bank relations in japan we examine the effects of bank firm relationships on firm performance in japan when access to capital markets is limited close bank firm ties increase the availability of capital to borrowing firms but do not lead to higher profitability or growth the cost of capital of firms with close bank ties is higher than that of their peers this indicates that most of the benefits from these relationships are appropriated by the banks finally the slow growth rates of bank clients suggest that banks discourage firms from investing in risky profitable projects however liberalization of financial markets reduces the banks market power the close relationship between manufacturing firms and financial institutions in japan has recently been at the center of the debate on the appropriate financial system for the reforming economies of eastern europe as opposed to the anglo saxon separation of finance and industry long term ties between main banks and their client firms involving bank loans bank equity holding and some bank appointed personnel which are common in japan and germany have often been described as a growth oriented financial system that could serve the needs of developing and reformed economiies better than anonymous capital markets modeled after the arnerican and british financial systems the claim that close ties between investmentoriented banks and industrial firms could help overcome the difficulties of relative backwardness dates back to gerschenkron 1962 who investigates european development rosovsky 1961 applies gerschenkron s framework to the analysis of japanese growth more recently aoki patrick and sheard 1994 hoshi kashyap and loveman 1994 and teranishi 1993 among others portray the close ties between finance and industry in japan as an important factor in the international competitiveness of modern japanese

the approach of institutional economics this paper assesses the old institutional economics it emphasizes the importance of key old institutionalist themes concerning the necessity of habits and rules and the role of institutions a problem in the alternative theoretical program of the new institutionalism is the untenability of its assumption of an original institution free market or state of nature even optimizing behavior requires the prior existence of habits and rules although it still lacks a complete and systematic theory the evolutionary approach of the old institutionalists tackles the problem of the interactive relationship of actor to structure without analytical reduction to one or the other

network structure and the diffusion of knowledge this paper models knowledge diffusion as a barter process in which agents exchange different types of knowledge this is intended to capture the observed practice of informal knowledge trading agents are located on a network and are directly connected with a small number of other agents agents repeatedly meet those with whom direct connections exist and trade if mutually profitable trades exist in this way knowledge diffuses throughout the economy we examine the relationship between network architecture and diffusion performance we consider the space of structures that fall between at one extreme a network in which every agent is connected to n nearest neighbours and at the other extreme a network with each agent being connected to on average n randomly chosen agents we find that the performance of the system exhibits clear small world properties in that the steady state level of average knowledge is maximal when the structure is a small world that is when most connections are local but roughly 10 percent of them are long distance the variance of knowledge levels among agents is maximal in the small world region whereas the coefficient of variation is minimal we explain these results as reflecting the dynamics of knowledge transmission as affected by the architecture of connections among agents

some stochastic processes of interdependent demand and technological diffusion of an innovation exhibiting externalities among adopters one frequently hears the opinion that as twentieth century society becomes more complex technological change assumes more significance and occurs at a more r apid pace investment in researclh and development results in a myriad of potential innovations yet as the frontiers of technology are plshed outward uncertainity about the usefulniess of innovations becomes an increasingly important factor in the decision whether or not to adopt the new innovation furthermore the decisions of individual economic agents tend to become increasingly interrelated many recent innovations are such that whether others adopt the device influences the benefits of adoption which accrue to a given consumer or firm such externalities may be positive for example consider a nation s decision to use the metric system the wearing of a style by a fashion leader a merchant s decision to accept a certain credit card or the purchase of a coinmunication device by someone with whom one desires to communicate or negative for instance imitation in the production of a faddish consumption item for which the potential market is limited or the pulrchase of a telephone by an obscene caller our goal is to analyze techn ological difflsioll with interdependencies when uncertainty and informational considerationis are an inherent part of the theoretical model the uncertainty may be of two types a technological ulncertainty the usefulness or quality of the innovation is at least partially unlknown and b adoption uncertainity incomplete or inaccurate knowledge about who is usinlg the innovation in our stochastic model adoptioni is reversible the decision to use the innovation is not permanent but rather agents may change their minds agents are not able to learn about the characteristics quality profitability usefulness etc of the innovation this assumption limits the applicability of

structural dynamics of innovation networks funded by the european union in the context of systemic innovation of the renewable energy sector innovation in the renewable energy re sector relies on the concept of systemic innovation which requires interaction between two innovation aspects technology exploration and market exploitation the european union eu has introduced political instruments for systemic re innovation by integrating resources from different thematic and geographic areas however using these instruments to establish an ecosystem for systemic innovation remains unexplored this study develops a framework for evaluating the systemic innovation performance of networks through a time series analysis of network structural properties overall eu funded innovation networks have not evolved in a systemic direction first the network exhibits densely connected local clusters for technology exploration and market exploitation of re innovation which are disconnected from each other over time the gap between the two phases has weakened with increasing connectivity but the local clusters supporting either explorative or exploitative activities have diminished the existing networking linkages among organizations are considered ineffective because their positions in the network tend to display a mismatch with their innovation patterns this research presents policy suggestions for optimizing the exploration and exploitation activities in the eu s funding program and their complementarities to establish a systemic innovation environment in the re sector

interest rate rules vs money growth rules a welfare comparison in a cash in advance economy abstract this paper considers the welfare consequences of two particularly simple rules for monetary policy an interest rate peg and a money growth peg the model economy consists of a real side that is the standard real business cycle model and a monetary side that amounts to imposing cash in advance constraints on certain market transactions the paper also considers the effect of assuming a rigidity in the typical household s cash savings choice the competitive equilibrium of the economy is not pareto efficient partly because of two distortions a distortion on the capital accumulation decision and a distortion on portfolio choice that arises from the assumed rigidity the principal result of the paper is that the interest rate rule but not the money growth rule entirely eliminates these two distortions and is thus the benevolent central banker s policy choice

communication and coordination in social networks i model people in a coordination game who use a communication network to tell each other their willingness to participate the minimal sufficient networks for coordination can be interpreted as placing people into a hierarchy of social roles or stages initial adopters then followers and so on down to late adopters a communication network helps coordination in exactly two ways by informing each stage about earlier stages and by creating common knowledge within each stage we then consider two examples first we show that low dimensional networks can be better for coordination even though they have far fewer links than high dimensional networks second we show that wide dispersion of insurgents people predisposed toward participation can be good for coordination but too much dispersion can be bad although collective action depends on both social structure and individual incentives these integral aspects have been formalized separately in the fields of social network theory and game theory by considering them together this paper engages the classic question of which structures are conducive to coordination and shows that structure and strategy are related in a mutually interesting way here we consider a coordination game in which each person wants to participate only if others participate social structure is thought of as a communication network by which people tell each other their willingness to participate each person knows whether her neighbours in the network are willing but does not know about anyone else our model is thus a game of incomplete information in which each person given his local knowledge decides whether to participate the main result is a characterization of the minimal sufficient networks for coordination in terms of a hierarchy of social roles or stages initial adopters then followers and so on down to late adopters for example a communication network helps coordination in exactly two ways by informing each stage about earlier stages and by creating common knowledge within each stage we also consider two simple examples first we show that low dimension or strong link networks can be better for coordination even though they have far fewer links than high dimension or weak link networks second we show that wide dispersion of insurgents people predisposed toward participation can be good for coordination but too much dispersion can be bad this paper is built on the assumption that the most basic and common mechanism for coordination is the i ll go if you go mechanism individuals first communicate with each other about their preferences and then each individual chooses whether to participate or not hence a person s participation depends on what he knows about his neighbours it does not depend solely on their participation itself either through learning adaptation or social influence the physical analogies of contagion or diffusion are not

institutions in economics the old and the new institutionalism 1 definitions and issues 2 formalism and anti formalism 3 individualism and holism 4 rationality and rule following 5 evolution and design 6 efficiency and reform 7 conflicts and complementarities

on the collapse of historical civilizations to explain the collapse of historical civilizations scholars typically point to suboptimal behaviors including misunderstanding the natural environment shortsightedness or a lack of institutions we examine the collapse of four historical societies with a model of endogenous population growth and renewable resources employing components of optimal resource management economic growth theory and the moral philosophy of social welfare function choice we find that these collapses may have been socially optimal further we show that the transient behavior of the system is more sensitive to assumptions than the equilibrium behavior and that focusing solely on equilibria may miss key insights copyright 2009 oxford university press

inventor networks in renewable energies the influence of the policy mix in germany technological change and gains in efficiency of renewable power generation technologies are to a large extent driven by governmental support various policy instruments that can broadly be categorized as technology push demand pull or systemic constitute part of the policy mix for renewable energies our goal is to gain insights into the influence of this policy mix on the intensity and organization of inventive activities for wind power and photovoltaics in germany since the 1980s we examine the effect of different instruments on the size and structure of co inventor networks based on patent data our results indicate notable differences between the technologies the network size for wind power is driven by technology push and systemic instruments while in photovoltaics demand pull is decisive for network growth by and large the instruments complement each other and form a consistent mix of policy instruments the structure of the networks is driven by demand pull for both technologies systemic instruments increase interaction especially in the wind power network and are complementary to demand pull in fostering collaboration