financial intermediation reserve requirements and inside money a general equilibrium analysis abstract reserve requirements are examined in a general equilibrium context the paper develops a simple general equilibrium model that includes diverse opportunities for investment and a role for financial intermediaries two versions of the model are considered one is a thought experiment in which currency serves purely to satisfy legal reserve requirements the other is more realistic the model is used to analyze the comparative static effects of changes in reserve requirements the effects of changes in other parameters of the economy in the presence of reserve requirements and some qualitative issues raised by reserve requirements

testing for asymmetric information in insurance markets the first goal of this paper is to provide a simple and general test of the presence of asymmetric information in contractual relationships within a competitive context we also argue that insurance data are particularly well suited to such empirical investigations to illustrate this claim we use data on contracts and accidents to investigate the extent of asymmetric information in the french market for automobile insurance using various parametric and nonparametric methods we find no evidence for the presence of asymmetric information in this market

complexity and path dependence in biotechnology innovation systems in commercial applications of biotechnology there is no international convergence on many critical dimensions the united states is pulling ahead vis a vis most other developed or emerging countries in spite of the efforts made by the potential catching up nations the article argues that the explanation lies in the institutional fabric that fosters commercial biotechnology this institutional structure is too complex and costly it exists mainly in the united states and the followers either do not understand it or are trapped with more inefficient institutions the paper builds on biotechnology in order to theorize about institutions and their evolution in sectoral innovation systems it also applies concepts and models from complex system theory copyright 2011 the author 2011 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

welfare maximizing inflation rates under fractional reserve banking with and without deposit rate ceilings note 1 lntroduction friedman 1971 in his paper on the revenue maximizing rate of inflation notes three possible monetary regimes 1 the government as sole issuer of non interest bearing money 2 a model with competitive banking and fractional reserve requirements and 3 a fractional reserve system with an effective restriction on interest payments calvo and fernandez 1983 show that maximal government revenues are not different between the first two classes but the revenue maximizing rate of inflation increases without bound as the reserve ratio falls 1 section 2 will argue that under a deposit rate ceiling friedman s third case the revenue maximizing rate of inflation is unaltered or even lowered by fractional reserve banking while the maximal revenues fall bailey 1956 tower 1971 and several other papers have focused on the welfare maximizing rate of inflation unless the marginal cost of explicit tax finance and the marginal benefit of government expenditures are infinite a welfaremaximizing government would not pursue inflationary finance to the revenuemaximizing rate section 3 will extend an analysis similar to tower s to explore the implications of fractional reserve banking with deposit ceilings recent banking deregulation has tended towards removing the restrictions on competitive banking section 4 will argue that in a competitive banking model the welfare maximizing rate of inflation may rise or fall

optimal seigniorage and financial liberalization abstract this paper analyzes the effect of financial integration for countries relying on the taxation of their domestic financial system a two country model with overlapping generations and explicit financial intermediation is used goverments derive revenues from seigniorage and set optimally but non cooperatively the rate of inflation and the level of required reserves on bank deposits a financial liberalizations leads to lower reserve ratios higher inflation rates and larger stocks of government debt when the liberalization is anticipated governments may temporarily increase the reserve ratios before the liberalization occurs jel f30 e60

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

potential pitfalls for the purchasing power parity puzzle sampling and specification biases in mean reversion tests of the law of one price the ppp puzzle is based on empirical evidence that international price differences for individual goods loop or baskets of goods ppp appear highly persistent or even nonstationary the present consensus is these price differences have a half life that is of the order of five years at best and infinity at worst this seems unreasonable in a world where transportation and transaction costs appear so low as to encourage arbitrage and the convergence of price gaps over much shorter horizons typically days or weeks however current empirics rely on a particular choice of methodology involving i relatively low frequency monthly quarterly or annual data and ii a linear model specification in fact these methodological choices are not innocent and they can be shown to bias analysis towards findings of slow convergence and a random walk intuitively if we suspect that the actual adjustment horizon is of the order of days then monthly and annual data cannot be expected to reveal it if we suspect arbitrage costs are high enough to produce a substantial band of inaction then a linear model will fail to support convergence if the process spends considerable time random walking in that band thus when testing for ppp or loop model specification and data sampling should not proceed without consideration of the actual institutional context and logistical framework of markets

principles of fiscal and monetary policy abstract this paper describes a complete and internally consistent set of principles for the conduct of a welfare maximizing fiscal and monetary policy issues of time consistency that arise in applying these principles to actual economics are also discussed

a general model of r d competition and policy this article constructs a model of r d with heterogeneous firms each firm s probability of success is a function of its sunk and recurrent r d expenditures the social gains from an innovation are not fully captured by the successful firm the comparison of the social optimum and the market equilibrium involves balancing spillover and crowding effects pigovian corrective policies as well as strategic policies for a subset of colluding firms are discussed

the changing structure of the us national innovation system implications for international conflict and cooperation in r d policy abstract the paper summarizes recent trends in the structure of the us national innovation system among these trends is a decline in r d spending by the federal government largely due to reductions in defense related r d spending another important shift in the profile of us r d spending is the reduction in the share of basic research funded by industry other policy related changes are the introduction of federal programs that have sought to strengthen civilian technology capabilities by subsidizing and promoting joint research and collaboration between us universities and industry and the federal laboratories and us industry the paper claims that sporadic efforts to limit the international dissemination of the results of publicly funded r d have in many cases been frustrated similar efforts to restrict foreign firms access to eu r d programs have had little effect it further concludes that the efforts to restrict foreign participation in us or eu publicly funded r d programs seem to be ill advised and infeasible considerable evidence suggests that the critical competitive weakness for both us and eu firms lie more in the translation of r d advances into commercial products rather than in the r d capabilities per se consequently the participation of non european firms in eu technology development projects and non us firms in publicly funded technology projects could convey powerful learning and demonstration benefits

the optimum quantity of money rule in the theory of public finance this paper examines optimal tax policy in a monetary economy in which money serves as an intermediate good that helps facilitate the conversion of scarce resources into tinal consumption goods by enabling consumers to economize on the costs of transacting it is shown that in such an environment even though distorting taxes must be levied for revenue purposes the optimal tax structure calls for abstaining from inflationary finance and adopting the optimum quantity of money rule

on the welfare macroeconomics of government financial policy is welfare as indicated by per capita private and collective consumption lower in longrun steady states with higher inflation rates on the one hand inflation diverts resources from production to economizing of cash holdings on the other those same economies create extra room for capital in the portfolios of finite horizon savers and seignorage from inflationary money creation permits tax reductions favorable to accumulation of wealth and capital it is shown that the optimal inflation may be positive therefore contrary to feldstein sacrifices of current output and employment may not be justified by the disinflation they bring about

seigniorage old and new policy issues introduction abstract seigniorage is at the crossroad of many avenues of research a summary survey of older and more recent developments from the static allocative approach in the differential taxation framework to policy analyses of the effects of joining the ems for high deficit countries shows that there may be some disorderly traffic and that definite policy conclusions can hardly be drawn from models which so often neglect relevant markets and variables and in particular the financial sectors and financial assets

seigniorage and the case for national money in countries with high rates of inflation there is typically movement away from the use of the local currency the paper analyzes the costs and benefits of using a local currency with emphasis on the seigniorage foregone by using a foreign money even if it should be desirable for a country to fix its exchange rate it still loses seigniorage if it does not use its own money the case for using a foreign money then turns largely on the superior discipline imposed on domestic policymakers by removing their control over the money supply alternative methods of imposing discipline are discussed estimates of the amount of seigniorage raised by different governments are presented seigniorage amounts in some cases to about 10 percent of government revenue estimates are also presented of both the annual flow and one time stock costs of giving up use of domestic currencies and instead using the dollar the flow cost is typically about 1 percent of gnp and the stock cost is around 10 percent of gnp

the role of the business model in capturing value from innovation evidence from xerox corporation s technology spin off companies this paper explores the role of the business model in capturing value from early stage technology a successful business model creates a heuristic logic that connects technical potential with the realization of economic value the business model unlocks latent value from a technology but its logic constrains the subsequent search for new alternative models for other technologies later on an implicit cognitive dimension overlooked in most discourse on the topic we explore the intellectual roots of the concept offer a working definition and show how the xerox corporation arose by employing an effective business model to commercialize a technology rejected by other leading companies of the day we then show the long shadow that this model cast upon xerox s later management of selected spin off companies from xerox parc xerox evaluated the technical potential of these spin offs through its own business model while those spin offs that became successful did so through evolving business models that came to differ substantially from that of xerox the search and learning for an effective business model in failed ventures by contrast were quite limited

national systems of innovations are x efficient and x effective why some are slow learners the growing literature on national systems of innovations nsis are creating a crucial new perspective on the institutional infrastructure of the knowledge based economy however this literature tends to be somewhat optimistic it often takes for granted that nsis are sets of institutions facilitating learning particularly about technology and organization this paper reconsiders the efficiency of nsis it suggests that nsis are x inefficient and x effective it develops some of the major factors explaining inefficiencies and proposes methods to measure the efficiency and effectiveness of nsis it offers some examples of inefficiencies from a comparison between selected nsis and suggests indicators of efficiency and effectiveness 2002 elsevier science b v all rights reserved

a general measure of inflation tax revenues abstract a general measure of the revenues from the inflation tax and seignorage is presented which is correct across models previous measures seemingly dependent on specific policy assumptions can be seen as special cases of this unified measure

why do we have nominal government debt abstract we study the choice between nominal and indexed debt in a stochastic macroeconomic model with discretionary monetary and fiscal policy with distortionary taxes nominal debt provides valuable insurance against the budgetary effects of economic fluctuations we show that a welfare maximizing government always issues some nominal debt even though nominal debt increases inflation along the time consistent path of the economy the result is fairly robust with respect to changes in assumptions about policy constraints and about the macroeconomic setting

technology systems and technology policy in an evolutionary framework the central purpose of this paper is to outline an evolutionary theory of technology policy and to connect it with the emerging literature on national systems of innovation any understanding of technology policy must be based on a clear understanding of the nature of technology and the important differences between science and technology technology can be treated in terms of knowledge skills and artifacts and in each case there are different variety generating mechanisms different selection processes and different institutional structures for policy purposes the degree of connection between these different dimensions of technology is at the core of technology policy c 1995 academic press inc copyright 1995 by oxford university press

an empirical analysis on the law of purchasing power parity and international economic deepening this article empirically investigates the effect of international trade on the deviation of purchasing power parity ppp law and on the international economic deepening in four developed countries japan usa uk and france and three asian developing ones south korea singapore and malaysia using international financial statistics ifs data issued by international monetary fund imf our results show that in some developed countries the imbalance effect of balance of payments is significant for both international deepening and deviation from ppp and in some developing countries the volume effect of balance of payments is significant for international deepening

characterization of the optimal tax on money when it functions as a medium of exchange abstract this paper compares the relative efficiency of the implicit taxation of money and the explicit taxation of real commodities to finance a given amount of government expenditures in the model used money has the property of reducing transactions costs a sufficient condition for a tax on money to be welfare dominated by a linear tax on consumption expenditures is characterized in terms of a few parameters very familiar in macroeconomics this characterization is especially useful in the cases of heterogeneous consumers and increasing returns to scale in transactions since then the optimal tax on money may in principle be positive

the functions of technology infrastructure in a competitive economy abstract governments of industrialized nations play varied but important roles in providing the diverse technology infrastructure that supports a modern competitive economy an understanding of the structure and impacts of these roles as well as efficiency differences among alternative implementation schemes is particularly important at this time as competing industrialized nations are revamping their technology infrastructures in response to major shifts in thescope as well as the content of their growth strategies these shifts in scope can be described as evolutionary changes from single stage to multi stage strategies in that several modes of technology based competition are simultaneously pursued that is whereas an economy may have focused on innovation manufacturing high volume or niche markets etc most if not all of these must be pursued together in the future in order to diversify risk and achieve economies of scope effective implementation of the more complex multi stage growth strategy requires a consensus model of the appropriate functions for infrastructure and its institutions such a consensus model is necessary to efficiently guide strategic planning in both industry and government in particular a conceptual basis is needed for defining the critical interfaces between the government and industry roles including effective long range planning communication and cooperation the required technology infrastructure policy model is derived from a microeconomic model of the typical technology based industry existing national strategies have demonstrated the importance of efficiency at the production and market development stages as well as at the r d stage but the trend is towards promoting simultaneous efficiency at all these stages that is the model and the derived infrastructure functions must cover all stages and interfaces in the technology and related product life cycles

governed by history institutional analysis of a contested biofuel innovation system in tanzania initially hailed as a miracle crop for biofuel production jatropha has recently attracted criticism for competing with food production causing adverse biodiversity impacts and jeopardizing land access by rural populations in tropical countries this paper analyzes the contested development of jatropha biofuel sector in tanzania by anchoring two new concepts of organizational models and institutional arrangements to the sectoral systems of innovation perspective the notion of organizational models brings into relief the heterogeneity of actors in an innovation system and the ways in which the actors form networks within and across national borders to organize innovative activities the concept of institutional arrangements refers to the ensemble of formal and informal institutions assembled during tanzania s colonial and post colonial eras which directly govern innovative activities in specific organizational models based on a location specific and historically grounded institutional analysis within the innovation system framework implications are drawn for the future development of tanzania s jatropha sector including its links with european markets and for the regulation of next generation biofuels

competitive banks and the inflation tax abstract the purpose of this note is to show that the presence of a competitive banking sector has important quantitative implications for the revenue maximizing rate of inflation

the national system of innovation in historical perspective contrary to some recent work on so called globalisation this paper argues that national and regional systems of innovation remain an essential domain of economic analysis their importance derives from the networks of relationships which are necessary for any firm to innovate whilst external international connections are certainly of growing importance the influence of the national education system industrial relations technical and scientific institutions government policies cul tural traditions and many other national institutions is fundamental the historical examples of germany japan and the former ussr illustrate this point as well as the more recent contrast between east asian and latin american countries introduction the national system of friedrich list according to this author s recollections the first person to use the expression national system of innovation was bengt ake lundvall and he is also the editor of a highly original and thought provoking book 1992 on this subject however as he and his colleagues would be the first to agree and as lundvall himself points out the idea actually goes back at least to friedrich list s conception of the national system of political economy 1841 which might just as well have been called the national system of innovation the main concern of list was with the problem of germany overtaking england and for underdeveloped countries as germany then was in relation to england he advocated not only protection of infant industries but a broad range of policies designed to accelerate or to make possible industrialisation and economic growth most of these policies were concerned with learning about new technology and applying it the racialist and colonialist overtones of the book were in strong contrast to the inter nationalist cosmopolitan approach of the classical free trade economists and list s belief that holland and denmark should join the german bund and acquire german nationality because of their descent and whole character reads somewhat strangely in the european community of today nevertheless despite these unattractive features of his outlook he clearly anticipated many contemporary theories after reviewing the changing ideas of economists about development in the years since the second world war the world bank 1991 concludes that it is intangible investment in knowledge accumulation which is decisive rather than physical capital investment as was at one time believed pages 33 35 the report cites the new growth theory

optimal financing of the government s budget taxes bonds or money financing of the government s budget in particular we consider taxation bond issuance and money creation as alternative means of financing these issues are not new some of them were extensively explored in the public finance literature some of them were explored in the monetary theory literature what we believe to be new however is that our work integrates the relevant elements from both strands of literature into a unified general equilibrium framework with this approach we are able to jointly determine the optimal combination of tax rates the rate of inflation and the interest rate on government bonds this type of analysis enables us to ask whether the rate of inflation should be positive or negative and to provide simple conditions on compensated demand elasticities which determine the answer it also enables us to reconsider milton friedman s optimum quantity of money rule in a public finance framework without lump sum taxes and to show how this rule should be modified in addition we provide insight into the desirability of a social security scheme by showing that such a program is undesirable when social security payments are financed

the jatropha biofuels sector in tanzania 2005 9 evolution towards sustainability abstract biofuel production has recently attracted much attention some anticipate substantial social and environmental benefits while at the same time expecting sound profitability for investors others are doubtful envisaging large trade offs between the pursuit of social environmental and economic objectives particularly in poor countries in the tropics the paper explores these issues in tanzania which has been an african forerunner in the cultivation of a bio oil shrub called jatropha curcas l we trace how isolated jatropha biofuel experiments developed since early 2005 towards a sectoral production and innovation system and we investigate to what extent that system has been capable of developing and maintaining sustainable practices and producing sustainable outcomes the application of evolutionary innovation theory allows us to view the developments in the sector as a result of evolutionary variation and selection on the one hand and revolutionary contestation between different coalitions of stakeholders on the other both these processes constitute significant engines of change while variation and selection are driven predominantly by localised technical and agronomic learning the conflict driven dynamics are highly globalised and occur primarily as a result of reflexive learning about problematic sustainability impacts the sector is found to have moved some way towards a full sectoral innovation and production system but it is impossible to predict whether a viable sector with a strong triple bottom line orientation will ultimate emerge since many issues surrounding the social environmental and financial sustainability still remain unresolved especially relating to local and global governance

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

the purchasing power parity debate originally propounded by the 16th century scholars of the university of salamanca the concept of purchasing power parity ppp was revived in the interwar period in the context of the debate concerning the appropriate level at which to re establish international exchange rate parities broadly accepted as a long run equilibrium condition in the post war period it first was advocated as a short run equilibrium by many international economists in the first few years following the breakdown of the bretton woods system in the early 1970s and then increasingly came under attack on both theoretical and empirical grounds from the late 1970s to the mid 1990s accordingly over the last three decades a large literature has built up that examines how much the data deviated from theory and the fruits of this research have provided a deeper understanding of how well ppp applies in both the short run and the long run since the mid 1990s larger datasets and nonlinear econometric methods in particular have improved estimation as deviations narrowed between real exchange rates and ppp so did the gap narrow between theory and data and some degree of confidence in long run ppp began to emerge again in this respect the idea of long run ppp now enjoys perhaps its strongest support in more than 30 years a distinct reversion in economic thought

the panel purchasing power parity puzzle does long run purchasing power parity ppp hold over the post 1973 floating exchange rate period panel unit root tests provide evidence of ppp that increases with the number of observations the strengthening of the evidence however is highly cyclical when the dollar appreciates at the end of the sample the evidence of ppp strengthens and when it depreciates the evidence weakens while these patterns cannot be explained by the specifications that are normally used to model real exchange rates the strengthening but not the cyclical pattern can be explained by a specifi cation that incorporates ppp restricted structural change

the reconfiguration of national innovation systems the example of german biotechnology abstract the concept of the national system of innovation nsi has been applied in order to analyze the interrelation of institutions and technological development it has been diversified as a growing number of studies recognized the emergence of autonomous innovation systems at various territorial levels focusing on german biotechnology this article takes an alternative perspective arguing that functions of the nsi became part of a multi level governance system by proposing a multi level approach which directs on the dynamic reconfiguration of nsis towards the subnational as well as the international level we are trying to bridge the gap between innovation system approaches that analytically highlight one specific territorial level only

towards solving the ppp puzzle evidence from 113 countries several different approaches have been followed by researchers to test the validity of purchasing power parity ppp since the introduction of the unit root tests researchers have applied a battery of these tests to determine whether the real exchange rates are stationary if the answer is in the affirmative ppp is validated while application of the standard augmented dickey fuller test has not provided much support for ppp a test that incorporates nonlinearity in the rates has under both tests however the null of nonstationary is tested against the alternative of stationarity in this article when we switch the null with the alternative and apply kwiatkowski et al 1992 test we provide relatively more support for the theory getting closer and closer towards solving the ppp puzzle

the dynamic implications of increasing returns technological change and path dependent inefficiency this paper addresses the issue of path dependent selection and inefficiency counterfactual methods and the empirical evidence employed in this research trajectory the general message is basically that the theoretical argument to prove path dependent inefficiency is relatively straightforward while empirical demonstrations as well as the analysis of welfare implications are much more difficult in the first section we briefly state the basic argument explaining how localized learning leads to an incomplete exploration of the variety distribution of a technology we then synthesize the most interesting historical studies which get potential regret results and ask whether these results suggest a large welfare loss to try to answer this question we start from the critical arguments of liebowitz and margolis to discuss the theoretical and empirical difficulties of establishing path dependent inefficiency