building competitive advantage innovation and corporate governance in european construction this paper explores the relationship between corporate governance and innovation this is examined through detailed interviews with the largest contractors in five european countries the ability to undertake research and development in production technologies by contractors differs widely across different countries this may be explained by the extent to which strategic control is in the hands of those who have the incentives and abilities to allocate resources to uncertain and irreversible investments in innovation this is influenced by particular features of firm ownership organisational and management structure internal mechanisms to diffuse knowledge and links to external sources of knowledge

network externalities technological progress and the competition of market contracts abstract network externalities are used to describe the fact that many modern products become more valuable the more users adopt products of the same technology where network externalities and technological progress exist the various kinds of inefficiencies discussed in the recent literature can be explained by different types of contracts the main categories analysed are simple market contracts update contracts and service contracts it is shown that these types of contract emerge endogenously from the incentive structure of profit maximizing firms competition between these contracts may substantially reduce inefficient allocations caused by network externalities

declining discount rates in this paper we ask whether the us government should replace its current discounting practices with a declining discount rate schedule as the united kingdom and france have done or continue to discount the future at a constant exponential rate to address the question we briefly present the theoretical basis for a declining discount rate ddr schedule and focus on how in practice a ddr could be estimated for use by policy analysts we discuss the empirical approaches in the literature and review how the united kingdom and france estimated their ddr schedules we conclude with advice on how the united states might proceed to consider modifying its current discounting practices i the expected net present value approach to ddrs

in search of insights into the generation of techno economic trends micro and macro constituencies in the microprocessor industry abstract in the field of technology policy few challenges are more intriguing than understanding the nature of technical and market trends this paper deals with this problem by using the sociotechnical constituencies approach in order to integrate the treatment of micro macro issues from product to industry the case study is that of the microprocessor industry where at present a risc reduced instruction set computer technology is emerging in a field where a powerful and far from exhausted cisc complex instruction set computer technology tends to occupy almost every segment of the market the analysis reveals how emerging product constituencies do implement pro active trend creating strategies in order to establish themselves as industrial trends and by so doing they simultaneously re define the existing content of the macro industrial level the study also reveals the important role of the nature and maturity of microprocessor technology in conditioning the constituency building strategies implemented by different players microprocessor technology is specifically characterised as an architectural codified knowledge component with indirect network externalities and weak appropriability regime finally the paper also highlights the potential risks of both fragmentation and complete proprietary control of technology in technological processes involving strongly competitive situations

ten little treasures of game theory and ten intuitive contradictions this paper reports laboratory data for games that are played only once these games span the standard categories static and dynamic games with complete and incomplete information for each game the treasure is a treatment in which behavior conforms nicely to predictions of the nash equilibrium or relevant refinement in each case however a change in the payoff structure produces a large inconsistency between theoretical predictions and observed behavior these contradictions are generally consistent with simple intuition based on the interaction of payoff asymmetries and noisy introspection about others decisions

meta paradigm change and the theory of the firm many seemingly unrelated debates on the theory of the firm are in fact part of a single deeper transformation of the social sciences as the foundational assumptions of 20th century social science have slowly been shown by science to be false new sub paradigms have emerged which cumulatively drop i theoretical assumptions about markets to explain firms ii epistemological assumptions about knowledge to explain diversity and iii metaphysical assumptions about causality to explain technical change debates occur across each of these levels

a large scale mapping of territorial development dynamics in latin america summary this paper summarizes a study of changes in per capita income monetary poverty and income distribution in 9 045 subnational administrative units of nine latin american countries between the mid 1990s and mid 2000s the results largely support spatial convergence of mean household incomes although the estimates indicate it has been slow territorial inequality is found to be persistent and reduces the pro poor effect of local income growth although national context specific the estimates also indicate that territorial development dynamics are influenced by the structural features of the territories in view of the evidence territorial development policies in latin america seem well warranted

a theory of voting equilibria a voting equilibrium arises when the voters in an electorate acting in accordance with both their preferences for the candidates and their perceptions of the relative chances of various pairs of candidates being in contention for victory generate an election result that justifies their perceptions voting equilibria always exist and the set of equilibria can vary substantially with the choice of voting system we compare equilibria under the plurality rule approval voting and the borda system we consider a candidate positioning game and find that the plurality rule imposes little restriction on the position of the winning candidate in three candidate races while approval voting leads to a winner positioned at the median of the voter distribution we contrast campaign activities intended to influence voter preferences with activities meant to influence only perceptions of candidate viability

stationary concepts for experimental 2x2 games five stationary concepts for completely mixed 2 x 2 games are experimentally compared nash equilibrium quantal response equilibrium action sampling equilibrium payoff sampling equilibrium martin j osborne and ariel rubinstein 1998 and impulse balance equilibrium experiments on 12 games 6 constant sum games and 6 nonconstant sum games were run with 12 independent subject groups for each constant sum game and 6 independent subject groups for each nonconstant sum game each independent subject group consisted of four players 1 and four players 2 interacting anonymously over 200 periods with random matching the comparison of the five theories shows that the order of performance from best to worst is as follows impulse balance equilibrium payoff sampling equilibrium action sampling equilibrium quantal response equilibrium nash equilibrium

forms of trust and conditions for their stability of the three principal approaches to trust we decided to investigate in greater detail the one in which trust is regarded as a belief that the individuals involved hold about a relationship trust was defined as a delegatory relationship based on anticipation of the delegatee s behaviour we reached four main conclusions first the solution to the problem posed by the indeterminacy of trust lies in the differentiation and hierarchisation of the various forms of trust contractual organisational and tacit on the basis of their degree of irreversibility and stability second contractual trust is unstable because it comes up against the problem of guarantees of individual intentions this leads to the third conclusion rational evaluation by individuals cannot by itself establish trust which is based on collective beliefs practices and rules fourth we identified two conditions for the stability of trust the creation of irreversibilities through adherence to a rule and the creation of a confidence interval within which different interpretations of contradictory individual strategies are tolerated thus the viability of the various forms of trust depends on the ability of institutions and organisations to create rules that are likely when applied to produce an interval in which tolerance of mutual intentions is the norm these analyses of trust hence highlight the role of time and period of time in the notion of trust

a percolation based model explaining delayed takeoff in new product diffusion a model of new product diffusion is proposed in which a site percolation dynamics represents socially driven diffusion of knowledge about the product s characteristics in a population of consumers a consumer buys the new product if her valuation of it formed after her witnessing the product in use among her friends or neighbors is not below the price of the product announced in a given period our model attributes the empirical finding of a delayed takeoff of a new product to a drift of the percolation dynamics from a nonpercolating regime to a percolating regime this drift is caused by learning effects lowering the price of the product or by network effects increasing its individual valuations by consumers both with an increasing number of buyers

models of currency crises with self fulfilling features the discomfort a government suffers from speculation against its currency determines the strategic incentives of speculators and the scope for multiple currency market equilibria after describing an illustrative model in which high unemployment may cause an exchange rate crisis with self fulfilling features the paper reviews some other self reinforcing mechanisms recent econometric evidence seems consistent with the practical importance of these mechanisms

hedonic price indexes for spreadsheets and an empirical test for network externalities in this article i first estimate hedonic price equations for computer spreadsheet programs and then use the analysis to empirically test whether network externalities exist in this industry the study shows that consumers are willing to pay a significant premium for spreadsheets that are compatible with the lotus platform and for spreadsheets that offer links to external databases and a similar premium for spreadsheets that offer local area network externalities finally the quality adjusted real price of computer spreadsheets declined by approximately 15 per year from 1986 to 1991

second order sustainability conditions for the development of sustainable innovations in a dynamic environment abstract in particular radical innovations can be important means to achieving improved sustainability due to the existence of path dependency and lock in however the transition from one technological trajectory to another more sustainable one is often impeded by significant barriers fortunately these barriers are by their nature subject to substantial changes in time so it makes sense to carefully distinguish between periods of stability showing high barriers in which the given trajectory can hardly be left and periods of instability characterized by low barriers where a new trajectory can be reached more easily the latter distinction matters since sustainable innovations often rely on governmental regulation and the economic burden arising from this regulation will be much lower in periods of instability moreover due to the complexity and dynamics of change in their respective environments innovations are generally associated with fundamental uncertainty such that it becomes impossible to predict the degree of sustainability yielded by specific innovations in the longer run under these circumstances it is essential to facilitate the change between trajectories and to allow for the possibility to select between a variety of alternative trajectories within a process of trial and error sustainability as viewed from this evolutionary perspective is therefore better understood as the general capability to adapt that is to readily change from less to more sustainable technological trajectories since the latter kind of sustainability determines the conditions under which the former kind i e sustainability related to a specific technology can be achieved the two kinds are respectively called second order and first order sustainability finally a series of determinants and corresponding indicators from the techno economic political and socio cultural sphere is identified which after proper measurement and weighting allow for making an assessment whether and when the incumbent industry is sufficiently destabilized and the political system rendered sufficiently favorable to the new more sustainable technology such that a transition to the preferred trajectory is possible without too much effort

wind power policy in complex adaptive markets abstract this paper aims to advance research into the effectiveness of policies for encouraging technological transition in the energy sector in general and wind power in particular it contends that the ineffectiveness of wind power development policy in most nations stems from a linear approach to policy design that is unsuited to complex adaptive markets the paper argues that in complex adaptive markets policies are required that foster competition on a level playing field insights are extracted from complexity theory to advance four principles for effective wind power policy in such markets these principles include establishing policy initiatives to encourage technological diversity establish clear and progressive short to medium term targets enhance environmental monitoring systems and establish a malleable policy regime that directly resolves emergent challenges while simultaneously sustaining market momentum to ensure long term targets are met in order to demonstrate the applied relevance of these principles the paper applies these concepts to a historical analysis of denmark s wind power development policies

source country earnings and emigration while higher wages at home reduce the incentive to emigrate by increasing the opportunity cost of working abroad they also facilitate emigration for liquidity constrained individuals our theoretical model examines the interaction between these two effects we show that i the relationship between the home country wage and emigration pressure is hump shaped ii the hump is more pronounced the lower the cost of migration and iii the ratio of high to low skilled emigrants is decreasing in the home country wage we test our model empirically for three different skill groups of emigrants and find strong evidence in support of the three hypotheses the peak emigration rate for the low skilled is estimated at 4000 at 2000 ppp adjusted prices a rise in the annual per capita income of the source country from 231 of the poorest economy in our sample to 4000 is associated with an increase in the emigration rate of its low skilled workers from about 2 7 to 5 0

dynamic competition with network externalities why history matters we consider dynamic competition among platforms in a market with network exter nalities a platform that dominated the market in the previous period becomes focal in the current period in that agents play the equilibrium in which they adopt the focal platform whenever such equilibrium exists yet when faced with higher quality competition can a low quality platform remain focal in the finite horizon case the unique equilibrium is efficient for patient platforms with an infinite time horizon however there are multiple equilibria where either the lowor high quality platform dominates if qualities are stochastic the platform with a better average quality wins with a higher probability even when its realized quality is lower and this probability increases as platforms become more patient hence social welfare may decline as platforms become more forward looking

unique equilibrium in a model of self fulfilling currency attacks even though self fulfilling currency attacks lead to multiple equilibria when fundamentals are common knowledge we demonstrate the uniqueness of equilibrium when speculators face a small amount of noise in their signals about the fundamentals this unique equilibrium depends not only on the fundamentals but also on financial variables such as the quantity of hot money in circulation and the costs of speculative trading in contrast to multiple equilibrium models our model allows analysis of policy proposals directed at curtailing currency attacks

hedonic price indexes for residential housing a survey evaluation and taxonomy every house is different it is important that house price indexes take account of these quality differences hedonic methods which express house prices as a function of a vector of characteristics such as number of bedrooms and bathrooms land area and location are particularly useful for this purpose i consider here some developments in the hedonic methodology as it is applied in a housing context that have occurred in the last three decades a number of hedonic house price indexes are now available however it is often difficult to see how these indexes relate to each other for this reason i attempt to impose some structure on the literature by developing a taxonomy of hedonic indexes and then show how existing indexes fit into this taxonomy also discussed are some promising areas for future research in the hedonic field in particular greater use needs to be made of spatial econometric and nonparametric methods to exploit the increased availability of geospatial data the main criticisms of the hedonic approach are evaluated and compared with those of the repeat sales and stratified median methods the overall conclusion is that the advantages of the hedonic approach outweigh its disadvantages

privatization in eastern europe irreversibility and critical mass effects abstract this paper proposes a model to shed light on two important policy features of privatization in central and eastern europe the idea of a necessary critical mass of privatization on one hand and the great difficulties encountered in the actual privatization process on the other the model incorporates a positive externality related to the size of the private sector multiple equilibria may arise for political and economic reasons policies of free distribution are analysed with the model they may eliminate the danger of policy reversals due to excess unemployment but may at the same time increase the relative cost of restructuring leading in some cases to pareto inferior outcomes

multilateral resistance to migration the rate of migration observed between two countries does not depend solely on their relative attractiveness but also on the one of alternative destinations following the trade literature we term the influence exerted by other destinations on bilateral flows as multilateral resistance to migration and we show how it can be accounted for when estimating the determinants of migration rates in the context of a general individual random utility maximization model we propose the use of the common correlated effects estimator pesaran 2006 and apply it to high frequency data on the spanish immigration boom between 1997 and 2009 compared to more restrictive estimation strategies developed in the literature the bias goes in the expected direction we find a smaller effect of gdp per capita and a larger effect of migration policies on bilateral rates

waves in consumption with interdependence among consumers this paper presents a model to analyze the development of consumption patterns when there are social interactions among consumers in particular a consumer in this model recognizes three reference groups a peer group of similar consumers with whom the consumer wishes to share consumption activities a distinction group from which the consumer wishes to distinguish him or herself and an aspiration group to which the consumer does not belong but wishes that he she did and with whom the consumer would like to share consumption activities the interplay of aspiration and distinction can lead to waves in consumption these can happen when for example the avant garde consumption of up market pioneers is copied by other types of consumer as the latter aspire to emulate the former the former in turn seek to distinguish themselves from these unwelcome companions by varying their consumption in consequence a particular consumption activity may start up market an then gradually proceed down the social spectrum more complex patterns with continuing cycles in consumption can also be found the paper argues that this model is not only applicable to the consumption behaviour of an elite or would be elite but is relevant in a wide range of consumption settings

competing technologies the learning curve and rational expectations abstract the problem of choice between several variants of a technology subject to dynamic learning economies is examined in a rational expectations model with overlapping adopters it is shown that even with rational expectations the long term market outcome depends sensitively on the pattern of early chance events and that only one variant of the technology will come to dominate the market in the long run this variant need not be the one which is socially optimal or most promising technically

technological clusters with a knowledge based principle evidence from a delphi investigation in the french case of the life sciences abstract recent works in the theory of technical change show the effect of irreversibility and lock in on the diffusion and creation of innovation processes which are able to stop the development of a generic technology therefore industrial policies play a major role in selecting and supporting the innovative process the purpose of this paper is to prove the possibility to derive a typology of future innovations in terms of generic technology from a delphi type technology survey thus it is possible to get a better understanding of the industrial dynamics and to design an interesting tool for industrial policies or for firm strategies as far as they aim at developing stable technological trajectories this is applied to the french case of the life sciences the paper suggests interesting explanatory trajectories in order to fight against diseases such as cancer alzheimer or schizophrenia

when do markets tip a cognitive hierarchy approach the market structure of platform competition is critically important to managers and policy makers network effects in these markets predict concentrated industry structures whereas competitive effects and differentiation suggest the opposite standard theory offers little guidance full rationality models have multiple equilibria with wildly varying market concentration we relax full rationality in favor of a boundedly rational cognitive hierarchy model even small departures from full rationality allow sharp predictions there is a unique equilibrium in every case when participants single home and platforms are vertically differentiated a single dominant platform emerges multihoming can give rise to a strong weak market structure one platform is accessed by all and the other is used as a backup by some agents horizontal differentiation in contrast leads to fragmentation differentiation rather than competitive effects mainly determines market structure

rational inattention and migration decisions abstract acquiring information about destinations can be costly for migrants we model information frictions in the rational inattention framework and obtain a closed form expression for a migration gravity equation that we bring to the data the model predicts that flows from countries with a higher cost of information or stronger priors are less responsive to variations in economic conditions in the various destinations as migrants rationally get less information before deciding where to move the econometric analysis reveals systematic heterogeneity in the pro cyclical behavior of migration flows across origins that is consistent with the existence of information frictions

the energy costs of historic preservation we explore the impact of historic preservation policies on domestic energy consumption using panel data for england from 2006 to 2013 and employing a fixed effects strategy we document that i rising national energy prices induce an increase in home energy efficiency installations and a corresponding reduction in energy consumption and ii this energy saving effect is significantly less pronounced in conservation areas and in places with high concentrations of listed buildings where the adoption of energy efficiency installations is typically more costly and sometimes legally prevented altogether historic preservation policies increase private energy costs and the social cost of carbon per designated dwelling by around 11 600 19 100 and 2 400 4 000 respectively these costs ought to be weighed against any benefits of preservation

gifts as economic signals and social symbols gift giving has often puzzled economists especially because efficient gifts like cash or giving exactly what a person asks for seem crass or inappropriate it is shown in a formal game theoretic model that gifts serve as signals of a person s intentions about future investment in a relationship and inefficient gifts can be better signals other explanations for the inefficiency of gift giving are advanced and some stylized facts about gift giving practices are described many of which are consistent with the signaling view of gifts

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

out migration wealth constraints and the quality of local amenities the relation between income and migration intentions can be monotonically decreasing increasing or inverse u shaped dependent on the level of migration cost relative to wealth and if individuals are credit constrained using unique individual level data covering countries in three geographic regions sub saharan africa asia and latin america we show that migration intentions respond to individual wealth and that the pattern differs across the country groups studied in a manner compatible with the predictions of our simple model we also show that contentment with various dimensions of local amenities such as public services and security are key determinants of migration intentions

network externality an uncommon tragedy economists have defined network externality and have examined putative inframarginal market failures associated with it this paper distinguishes between network effects and network externalities where the latter are market failures the authors argue that while network effects are important network externalities are theoretically fragile and empirically undocumented some network externalities are merely pecuniary network ownership or transactions among network participants can internalize some network effects the type of market failure that has been associated with these externalities is a transition problem that has little to do with externality

bank runs as coordination failures an experimental study we use experimental methods to investigate what factors contribute to breakdowns in coordination among a bank s depositors subjects in our experiment decide whether to leave their money deposited in a bank or withdraw it early a bank run occurs when there are too many early withdrawals we explore the effects of adding uncertainty about fundamental withdrawal demand and of changing the number of opportunities subjects have to withdraw our results show that i bank runs are rare when fundamental withdrawal demand is known but occur frequently when it is stochastic and ii subjects are more likely to withdraw when given multiple opportunities to do so than when presented with a single decision for the multiple opportunity case we evaluate individual withdrawal decisions according to a set of simple cutoff rules we find that the cutoff rule corresponding to the payoff dominant equilibrium of the game which involves bayesian updating of probabilities explains subject behavior better than other rules

platform selection in the lab abstract emerging literature explores experimental platform selection games these games converge rapidly on the superior platform under a wide range of conditions we replicate the remarkable results of hossain and morgan 2009 in which such a game tips almost perfectly to the superior platform next we show that platform coordination fails when seemingly innocent increases in out of equilibrium payoffs are introduced the inflated payoffs keep the best reply structure unchanged and do not influence players security levels our design allows control for the explanatory force of risk dominance we find that equilibrium selection theory is unable to account for coordination failure while observed behavior is consistent with non rational learning furthermore and contrary to the literature we find that efficiency suffers when an inferior platform is granted initial monopoly

network effects and the dynamics of migration and inequality theory and evidence from mexico international migration is costly and initially only the middle class of the wealth distribution may have both the means and incentives to migrate which can increase inequality in the sending community however the migration networks formed lower the costs for future migrants which can in turn lower inequality this paper shows both theoretically and empirically that wealth has a nonlinear effect on migration and then examines the empirical evidence for an inverse u shaped relationship between emigration and inequality in rural sending communities in mexico after instrumenting we find that the overall impact of migration is to reduce inequality across communities with relatively high levels of past migration we also find some suggestive evidence for an inverse u shaped relationship among communities with a wider range of migration experiences

innovation processes in large technical systems market liberalization as a driver for radical change abstract electricity supply is a large technical system which exhibits strong path dependencies and high barriers for radical innovations recent market liberalization however has initiated a fundamental restructuring the paper analyzes how liberalization has altered innovation processes in the field of electricity supply we examine three radical innovations under monopoly conditions and contrast the findings with the results from a survey on the innovation behavior of electric utilities in liberalized markets we argue that the selection environment for innovations has changed in various respects in our sample new options open to innovation activities have emerged at the level of the firm and utility strategies turn out to be more heterogeneous this may be interpreted as an increase in the variety of search processes which may lead to a mid term decrease of path dependencies

selection on observed and unobserved variables assessing the effectiveness of catholic schools in this paper we measure the effect of catholic high school attendance on educational attainment and test scores because we do not have a good instrumental variable for catholic school attendance we develop new estimation methods based on the idea that the amount of selection on the observed explanatory variables in a model provides a guide to the amount of selection on the unobservables we also propose an informal way to assess selectivity bias based on measuring the ratio of selection on unobservables to selection on observables that would be required if one is to attribute the entire effect of catholic school attendance to selection bias we use our methods to estimate the effect of attending a catholic high school on a variety of outcomes our main conclusion is that catholic high schools substantially increase the probability of graduating from high school and more tentatively attending college we find little evidence of an effect on test scores

how borrowing constraints hinder migration theoretical insights from a random utility maximization model we provide a theoretical framework to analyze how financial constraints hinder migration introducing wealth heterogeneity and borrowing constraints into a random utility maximization model of migration we find evidence of multilateral resistance to migration stemming from borrowing constraints we calibrate the model on 22 european countries and we show that omitting the constraints biases upward the estimation of bilateral migration rates we then simulate an increase in the bilateral cost of migration to the united kingdom we find that omitting the constraints biases downward the change entailed by the cost increase in the bilateral rates of migration to all destinations

the quest for qwerty in settings ranging from office suite software to online auctions casual empiricism suggests a strong tendency for markets where platforms compete to tip to a single dominant player but which platform will prevail one might hope that the better platform will be selected theory however offers no such comfort standard models suggest that tipping to any platform even an inferior one comprises an equilibrium paul a david 1985 suggests that getting stuck in a bad equilibrium is not merely a theoretical possibility but a good description of what happened in the typewriter keyboard market he argues that the qwerty arrangement prevailed and continues to prevail despite its inferiority to the dvorak arrangement the essence of david s argument is that by virtue of its head start in the market users expected qwerty to prevail and these expectations were selffulfilling as a consequence the superior platform dvorak was never adopted the idea that self fulfilling expectations can lead an inferior platform to triumph in the face of better alternatives has now become standard in the economics literature and features prominently in many textbooks see for instance luis m b cabral 2000 yet despite the long passage of time since david s piece was first published the paucity of modern examples illustrating this idea is striking most textbooks including cabral s are content to focus on qwerty as well as the competition between betamax and vhs some 30 years ago the validity of the qwerty example itself has been called into question s j liebowitz and stephen e margolis 1990 suggest that the quest for qwerty

a practitioners guide to gravity models of international migration the use of bilateral data for the analysis of international migration is at the same time a blessing and a curse it is a blessing because the dyadic dimension of the data allows researchers to address a number of previously unanswered questions but it is also a curse for the various analytical challenges it gives rise to this paper presents the theoretical foundations of the estimation of gravity models of international migration and the main difficulties that have to be tackled in the econometric analysis such as the nature of migration data how to account for multilateral resistance to migration or endogeneity we also review some empirical evidence that has considered these issues

on money as a medium of exchange we analyze economies in which individuals specialize in consumption and production and meet randomly over time in a way that implies that trade must be bilateral and quid pro quo nash equilibria in trading strategies are characterized certain goods emerge endogenously as media of exchange or commodity money depending both on their intrinsic properties and on extrinsic beliefs there are also equilibria with genuine fiat currency circulating as the general medium of exchange we find that equilibria are not generally pareto optimal and that introducing fiat currency into a commodity money economy may unambiguously improve welfare velocity acceptability and liquidity are discussed

persistence of power elites and institutions we construct a model to study the implications of changes in political insti tutions for economic institutions a change in political institutions alters the distribution of de jure political power but creates incentives for investments in de facto political power to partially or even fully offset change in de jure power the model can imply a pattern of captured democracy whereby a democratic regime may survive but choose economic institutions favoring an elite the model provides conditions under which economic or policy outcomes will be invariant to changes in political institutions and economic institutions them selves will persist over time jel d02 d72 the domination of an organized minority over the unor ganized majority is inevitable the power of any minority is irresistible as against each single individual in the majority who stands alone before the totality of the organized minor ity at the same time the minority is organized for the very reason that it is a minority

institutional reform and technological practice the case of electricity this article proposes a framework for categorizing possible interrelations between technological and institutional change and applies this framework to the case of the restructuring of the electricity sector it is argued that there is a need for coherence between institutions and technological practice so as to safeguard the satisfactory functioning of electricity infrastructure the identification of possible incoherences between institutions and technological practice allows for a better understanding of the potential drivers for change and the evolutionary processes of which they may be part this article attempts to elaborate the nature of this co evolution in somewhat more detail using specific levels of analysis that are exemplified in a four level model in the case of the restructuring of the electricity sector the institutional framework has changed from a public utility oriented towards a market oriented system however the technological practice remained unchanged a system oriented approach that relies on centralized planning control and operation this discrepancy between institutions and technological practice leads to significant frictions in the functioning of the electricity sector but it also offers opportunities for innovation in order to make liberalization a success it might be necessary to stimulate certain technical developments i e distributed generation and intelligent networks

biodiversity conservation in a dynamic world may lead to inefficiencies due to lock in effects and path dependence abstract although biodiversity is generally diminishing in some areas its conservation is expanding however the exact path of this expansion is uncertain this can lead to problems of path dependence and lock in effects path dependence describes situations where history strongly influences present decisions and lock in effects refer to situations where an earlier decision provides strong incentives to follow a particular path even if more efficient alternatives are available later on we develop a conceptual ecological economic model to investigate which ecological and economic parameters favour the appearance of efficiency losses in biodiversity conservation due to path dependence and lock in effects in a dynamic two period two region model generally we find that efficiency losses occur if there are signals that guide the first period budget into a region that later turns out to be suboptimal if both time periods had been considered right from the beginning to illustrate the conservation relevance of our findings we present potential efficiency losses through path dependence in the hypothetical case of applying offsets to conserving the endangered maculinea teleius butterfly near the city of landau in germany

a review of the stern review on the economics of climate change the stern review calls for immediate decisive action to stabilize greenhouse gases because the benefits of strong early action on climate change outweighs the costs the economic analysis supporting this conclusion consists mostly of two basic strands the first strand is a formal aggregative model that relies for its conclusions primari ly upon imposing a very low discount rate concerning this discount rate aspect i am skeptical of the review s formal analysis but this essay points out that we are actual ly a lot less sure about what interest rate should be used for discounting climate change than is commonly acknowledged the review s second basic strand is a more intuitive argument that it might be very important to avoid possibly large uncertain ties that are difficult to quantify concerning this uncertainty aspect i argue that it might be recast into sound analytical reasoning that might justify some of the review s conclusions the basic issue here is that spending money to slow global warming should perhaps not be conceptualized primarily as being about consump tion smoothing as much as being about how much insurance to buy to offset the small change of a ruinous catastrophe that is difficult to compensate by ordinary savings

learning by doing and the emergence of monopoly abstract the implications of learning by doing on the structure of an industry are studied through an example where firms are assumed to be non identical it is shown that under certain circumstances the industry may experience growing concentration leading eventually to monopoly a comparison between the effects of learning by doing in a socially managed industry and in a cournot duopoly is made

the adoption of voluntary environmental management programs in mexico first movers as institutional entrepreneurs this article analyzes the adoption of voluntary environmental management programs by firms operating in mexico mexican firms can obtain national certification clean industry and or international certification iso 14001 based on institutional entrepreneurship theory we posit that the role played by first movers as institutional entrepreneurs is crucial if these programs are to become established with sufficient strength and appeal this understanding is especially important in an environment where more than one program can be adopted we tested several hypotheses on the behaviors of 1328 facilities operating in mexico half of which 664 had certified environmental management programs of the 664 certified facilities 217 were classified as early adopters three variables predicted the likelihood of a facility being an early adopter 1 connected to international market 2 in the maquila sector and 3 linked to an industry association that offers free resources

property rights and the role of the state evidence from the horn of africa this study applies extant theories of property rights change to three land tenure systems in imperial ethiopia two of the areas underwent changes in property rights after experiencing changes in the value of land one did not a data set of litigation over land rights is used in conjunction with case studies to understand the mechanisms motivating or impeding property rights change amendments to the role of the state are suggested and two conclusions are reached 1 that movement towards greater specificity of land rights did not always occur and 2 the changes in property rights that occurred were imposed from above rather than occurring endogenously where property rights changes did not occur they appear to have been blocked by the state which was more concerned with political survival than with revenue maximisation

managerial prescriptions under the resource based view of strategy the example of motivational techniques working from the perspective of the resource based view of strategy this paper addresses whether academics consultants and other sources of general managerial prescriptions can affect firms long run rent streams the answer is affirmative to demonstrate this i discuss the use of motivational techniques as a well understood and common managerial choice that may affect a firm s chance of generating rents this paper interprets extant empirical research on goal setting and discusses the conceptualization of temporal rent patterns i build upon an empirical finding in goal setting research to compare the temporal patterns of rents for managerial choices embedded in path dependent vs path independent processes 1998 john wiley sons ltd

is demand pulled innovation equally important in different groups of firms previous empirical literature has tested the demand pull hypothesis and found that innovation may be driven by output using a balanced panel of 216 italian manufacturing firms 1995 2000 and checking for the path dependent nature of r d we find a role of sales in inducing r d however the demand pull effect plays a varying role for different sub samples of firms exporting firms liquidity constrained firms not subsidised firms and those not heading a group seem to be sensitive to sales in deciding r d these results have been obtained using a least squares dummy variable corrected estimator a recent panel data technique suitable for small samples

coordination failures and government policy a model with applications to east asia and eastern europe abstract poor countries must specialize in standardized labor intensive commodities middle income countries may have a richer menu of options if their labor force is reasonably well educated and skilled the multiplicity of equilibria is due to a coordination problem inherent in activities that require specialized inputs if no intermediate inputs are presently produced there may be little incentive for any single firm to do so on its own the economy may get stuck in a low wage low tech equilibrium an investment subsidy or a minimum wage policy can enhance welfare by moving the economy to a superior equilibrium

economic performance through time prize lecture to the memory of alfred nobel december 9 1993 this abstract was borrowed from another version of this item

income maximization and the selection and sorting of international migrants abstract two prominent features of international labor movements are that the more educated are more likely to emigrate positive selection and more educated migrants are more likely to settle in destination countries with high rewards to skill positive sorting using data on emigrant stocks by schooling level and source country in oecd destinations we find that a simple model of income maximization can account for both phenomena results on selection show that migrants for a source destination pair are more educated relative to non migrants the larger is the absolute skill related difference in earnings between the destination country and the source results on sorting indicate that the relative stock of more educated migrants in a destination is increasing in the absolute earnings difference between high and low skilled workers we use our framework to compare alternative specifications of international migration estimate the magnitude of migration costs by source destination pair and assess the contribution of wage differences to how migrants sort themselves across destination countries

migration risk and liquidity constraints in el salvador abstract this article utilizes panel data from el salvador to investigate the use of transnational migration as an ex post risk management strategy i show that adverse agricultural conditions in el salvador increase both migration to the united states and remittances sent back to el salvador i show that in the absence of any agricultural shocks the probability that a household sent members to the united states would have decreased on average by 24 26 i also show that the 2001 earthquakes reduced net migration to the united states a one standard deviation increase in earthquake damage reduced the average probability of northward migration by 37 11 the evidence suggests that the effects of the earthquakes had more to do with households retaining labor at home to cope with the effects of the disaster than with the earthquakes disrupting migration financing

adaptation as information restriction the hot stove effect individuals and social systems are often portrayed as risk averse and resistant to change such propensities are characteristically attributed to individual organizational and cultural traits such as risk aversion uncertainty avoidance discounting and an unwillingness to change this paper explores an alternative interpretation of such phenomena we show how the reproduction of successful actions inherent in adaptive processes such as learning and competitive selection and reproduction results in a bias against alternatives that initially may appear to be worse than they actually are in particular learning and selection are biased against both risky and novel alternatives because the biases are products of the tendency to reproduce success that is inherent in the sequential sampling of adaptation they are reduced whenever the reproduction of success is attenuated in particular when adaptation is slowed made imprecise or recalled less reliably the propensity to engage in risky and new activities is increased these protections against the error of rejecting potentially good alternatives on inadequate experiential evidence are costly however they increase the likelihood of persisting with alternatives that are poor in the long run as well as in the short run

the end of economic growth a contracting threshold hypothesis this paper argues that gdp growth in both developed and developing countries has associated costs that can outweigh the benefits and thus reduce sustainable well being this conclusion is based upon the findings of empirical applications of the genuine progress indicator gpi to a range of countries in the asia pacific region the studies conducted on seven asia pacific countries indicate that in the case of five of the seven nations more recent gdp growth has reduced the sustainable well being experienced by the average citizen residing within them moreover the threshold point at which the costs of gdp growth outweigh the benefits appears to be contracting i e occurring at a much lower per capita level of gdp this paper therefore introduces a new contracting threshold hypothesis as the economies of the asia pacific region and the world collectively expand in a globalised economic environment there is a contraction over time in the threshold level of per capita gdp as a consequence the threshold point confronting growth late comers i e developing countries occurs at a much lower level of sustainable welfare than what wealthy nations currently enjoy the consequences of this for developing countries are clearly significant and require a new approach to economic development

efficiency gains from liberalizing labor mobility in this paper we quantify the effect of a complete liberalization of cross border migration on the world gdp and its distribution across regions we build a general equilibrium model endogenizing bilateral migration and income disparities between and within countries our calibration strategy uses data on effective and potential migration to identify total migration costs and visa costs by education level data on potential migration reveal that the number of people in the world who have a desire to migrate is around 400 million this number is much smaller than that predicted in previous studies and reflects the existence of high incompressible migration costs in our benchmark framework liberalizing migration increases the world gdp by 11 5 12 5 percent in the medium term our robustness analysis reveals that the gains are always limited in the range of 7 0 percent with schooling externalities to 17 9 percent if network effects are accounted for

the valuation of complex derivatives by major investment firms empirical evidence this article examines the auction of a portfolio of collateralized mortgage obligations cmos to major broker dealers and institutional investors the unique data set allows us to analyze a number of important empirical questions related to the valuation of cmos by the bidders and the elasticity of demand for the securities the results reveal that the valuations differ substantially implying a significant elasticity of demand this article is designed to shed light on two related questions first it extends the work of bagwell 1991 1992 brown and ryngaert 1990 and bradley desai and kim 1988 among others on shareholder heterogeneity and the elasticity of the demand for financial assets to date the empirical research on investor heterogeneity has focused on common stock this article supplements previous work by examining an auction of another class of securities complex collateralized mortgage obligations cmos to major securities dealers and institutional investors second it provides perspective on fixed income valuation models in the spirit of cox ingersoll and ross 1985 and black derman and toy 1990 virtually all of these models even those that specify relatively complex interest rate processes assume homogeneous beliefs this implies that within the constraints imposed by estimation error sophisticated investors should place equal values on fixed income securities bagwell observes that investors can be heterogeneous along several dimensions first heterogeneity can be induced by tax rules to the extent that different investors are taxed in different ways their demand for securities will be affected second transaction costs can cause heterogeneity by driving a wedge between buyers sellers and owners of a security third investors can differ in their assessments of the value of a security either because they possess different information or because they analyze that information in different ways fourth investors can face different nontradeable risks and thus can have different assessments of the value of a security depending on how it interacts with these risks finally it has been suggested by lee shleifer and thaler 1991 among others that investors may differ for idio

the time value of housing historical evidence on discount rates most london housing transactions involve trading long leases of varying lengths we exploit this to estimate the time value of housing the relationship between the price of a property and the term of ownership over a 100 years and derive implied discount rates for our empirical analysis we compile a unique historical data set 1987 92 to abstract from the right to extend leases currently enjoyed by tenants across a variety of specifications and samples we find that leasehold prices are consistent with a time declining schedule and low long term discount rates in housing markets

theorizing path dependence a review of positive feedback mechanisms in technology markets regional clusters and organizations the concept of path dependence has often been criticized as vague and only narrowly applicable although we can find some very refined definitions of the concept we also find a wide range of empirical phenomena being described as path dependent we argue that more detailed accounts of the positive feedback mechanisms that form paths can take path dependence beyond this state of being overdetermined but under specified reviewing three well described cases of path dependent dynamics in technology markets regional clustering and organizations we define a core set of positive feedback mechanisms that constitute path dependence at different analysis levels and clarify the relationship between positive feedback and increasing returns we show that path dependent processes that is processes driven by positive feedback that veer toward rigidity or lock in can be but do not have to be found under many labels including structural inertia coevolution or institutional persistence we conclude that a precise definition of path dependence does not need to be at odds with the concept s widespread use in understanding organizational and industrial development processes copyright 2013 the author 2012 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

technological change in economic models of environmental policy a survey this paper provides an overview of the treatment of technological change in economic models of environmental policy numerous economic modeling studies have confirmed the sensitivity of mid and long run climate change mitigation cost and benefit projections to assumptions about technology costs in general technical progress is considered to be a noneconomic exogenous variable in global climate change modeling however there is overwhelming evidence that technological change is not an exogenous variable but to an important degree endogenous induced by needs and pressures hence some environmenteconomy models treat technological change as endogenous responding to socio economic variables three main elements in models of technological innovation are i corporate investment in research and development ii spillovers from r d and iii technology learning especially learning by doing the incorporation of induced technological change in different types of environmental economic models tends to reduce the costs of environmental policy accelerates abatement and may lead to positive spillover and negative leakage

capitalism as an engine of progress economists from marx to schumpeter have touted capitalism as an engine of technical progress but what kind of an engine is it what are its key components how does it work

inefficient standard adoption inertia and momentum revisited i introduction since the establishment of the theory of network effects economists have been concerned with the question of whether a market with network effects will tend to settle on the socially optimal standard it has been postulated that markets may exhibit excess inertia once a technological standard is in place a new superior standard may not displace it because of installed base effects alternatively markets may exhibit excess momentum consumers may adopt a new standard too quickly ignoring the stranding effect they are having on previous users similar issues arise in the adoption of language and social norms the literature has investigated various conditions under which one of these inefficiencies arises such inefficiencies are of particular concern for open technologies such as the qwerty and dvorak keyboards 1 the situation is somewhat different when individual firms own standards in that case a simple argument seems to indicate that there is no possibility that an inefficient standard will persist if a new standard is superior in any objective sense there are gains to be made from switching to it once the standard has been adopted the firm can appropriate these gains therefore the firm has incentive to lower the initial price enough to induce adoption of the standard the preceding argument is made in liebowitz and margolis 1999 and repeated in spulber 2002 spulber expresses a general skepticism about the likelihood of inefficiencies when property rights are defined and markets exist critics might claim that previous models that imply inefficient standard adoption are unrealistic in some way and that if such models were modified slightly the inefficiency would disappear i reconsider the issue of inefficient standard adoption using a parsimonious yet compelling model assuming only that there are successive generations of finitely lived consumers that preferences are heterogeneous and that there are network effects among users adoption decisions can be inefficient this is true even if consumers can coordinate efficiently within a generation and a firm can act as a coordinating device across generations the model presented here generates some of the same results found in other papers collectively but in a more general setting and with more robust results if there is an established standard and a superior alternative emerges no single generation of consumers will be willing to switch to the new standard if the switching cost the loss of network benefit from breaking with past users is too high it may be that the benefits to future generations of consumers are large enough that from a social standpoint it would be efficient for one generation to adopt the new standard even if it is privately optimal for that generation to retain the old standard on the other hand the current generation considers only its own switching cost and not the cost it imposes on the previous generation leading to potential overadoption of new technology even for proprietary standards it is not clear that the incentive of the firm to induce adoption matches the social incentive in particular if consumer preferences are heterogeneous the firm will not be able to price in such a way to extract all of the additional surplus gained from the new standard on the other hand the firm will be able to appropriate some of the surplus generated by the network effect itself which is present for any standard and thus does not affect the social incentive to change standards it is not possible to address this issue with a two period model as in some of the previous literature see for example choi 1994 choi and thum 1998 katz and shapiro 1986 if a new technology is introduced in the second period but then the game ends the welfare of future generations of consumers is neglected 2 this article also differs from previous infinite horizon models of technology adoption

induced adoption and externalities in the regional diffusion of information technology antonelli c 1990 induced adoption and externalities in the regional diffusion of information technology reg studies 24 31 40 information technology can be considered as a set of complex radical innovations which continues to evolve and has a major impact both within the plant and the office in such a context its regional diffusion is likely to be determined by relevant externalities together with the effects of a wage induced process of localized technological change and adoption data on the territorial distribution of fax machines and modems show that the levels of diffusion of information technology in italy is highly uneven favouring central regions endowed with higher levels of fixed and human capital and consequently income the econometric analysis confirms that diffusion levels of both fax and modems across provinces are significantly associated with the level of wages as is to be expected from the induced adoption hypothesis and from the existence of external factors such as the presence

demand dynamics with socially evolving preferences in this work we first identify a few stylized facts concerning microconsumption acts second building on them we develop a simple model of boundedly rational consumers who endogenously evolve their preferences via both innovation and social imitation third we explore some statistical properties of the demand patterns generated by the model which despite its simplicity are surprisingly in line with the empirical evidence these results we suggest bring encouraging support to microfoundations of demand theory based on cognitive and behavioral foundations more in tune with the psychological and sociological evidence based on heterogeneous agents who are much less rational and much more social than in standard theory and who collectively discover along the way what they like within a growing universe of available commodities

power steering the canadian automotive industry the 1965 canada usa auto pact and political exchange abstract in the 1965 canada usa auto pact the automotive companies were required to maintain specified levels of assembly activity in canada this restriction and subsequent events such as the correlation of a shift in employment to canada and the widening of pay disparities between american and canadian workers the concentration of research in the united states despite canadian fiscal incentives and the differences in the rescue packages offered to chrysler by the two governments cannot be explained by conventional economic theory the paper demonstrates that they can be explained as mutually advantageous accommodations to different evaluations of political outputs reflecting endowments and domestic economic interests

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

social capital and the linkages of high tech companies to the military defense system is there a signaling mechanism this study investigates linkages of new israeli high tech companies to the military and defense system we examine the impact of social capital signaling and learning spillovers on resource acquisition in terms of investments and the financial performance of companies with and without linkages social capital signaling and learning spillovers are examined as they impact individual and organizational resource acquisition and performance of 200 new israeli high tech companies the study contributes to the existing literature of entrepreneurship by suggesting the relevance of knowledge spillovers signaling theory and social capital to the context of the interface between defense and civilian spheres

the two faces of market support how deployment policies affect technological exploration and exploitation in the solar photovoltaic industry the recent years have seen a strong rise in policies aiming to increase the diffusion of clean energy technologies while there is general agreement that such deployment policies have been very effective in bringing technologies to the market it is less understood how these policies affect technological innovation to shed more light on this important question we conducted comparative case studies with a global sample of 9 firms producing solar photovoltaic pv modules complemented by in depth interviews with 16 leading pv industry experts we propose that on the one hand policy induced market growth serves as an important catalyst for innovative activity as it raises the absolute level of firm investments in technological exploration on the other hand however deployment policies create an incentive for firms pursuing more mature technologies to shift their balance between exploitation and exploration toward exploitation firms focusing on less mature technologies cannot tap the potentials of exploitative learning to the same extent as those with more mature technologies therefore stimulating strong market growth may raise the barrier to market entry for less mature technologies we conclude that when designing deployment policies great care should be taken to avoid adverse effects on technological diversity and a premature lock in into more established technologies

the economics of convention c onventions regulate much of economic and social life yet they have received surprisingly little attention from economists by a convention we mean a pattern of behavior that is customary expected and self enforcing everyone conforms everyone expects others to conform and everyone has good reason to conform because conforming is in each person s best interest when everyone else plans to conform lewis 1969 familiar examples include following rules of the road adhering to conventional codes of dress and using words with their conventional meanings conventions with direct economic implications include species of money and credit industrial and technological standards accounting rules and forms of economic contracts indeed it would scarcely be an exaggeration to say that almost all economic and social institutions are governed to some extent by convention the main feature of a convention is that out of a host of conceivable choices only one is actually used this fact also explains why conventions are needed they resolve problems of indeterminacy in interactions that have multiple equilibria indeed from a formal point of view we may define a convention as an equilibrium that everyone expects in interactions that have more than one equilibrium the economic significance of conventions is that they reduce transaction costs imagine the inconvenience if whenever two vehicles approached one another the important exceptions are sugden 1986 and ullman margalit 1977 the interested reader might also refer to the symposium on social norms that appeared in the fall 1989 issue of this journal with articles by sugden 1989 and elster 1989

hardware quality vs network size in the home video game industry abstract this paper analyzes competition between multiple proprietary and incompatible hardware systems when indirect network effects are present and software is provided competitively by third party developers a discrete choice demand structure is employed within a game theoretic setting to allow for a continuum of market share possibilities empirical evidence supports the claim that excess inertia is not a pervasive problem two data sets covering the life of the home video game industry yearly from 1976 to 2003 and monthly january 1995 to october 2007 yield three main results 1 market share is 11 4 times more sensitive to hardware quality than network size 2 the number of available games is 3 69 times more sensitive to hardware quality than network size and 3 hardware quality has a larger impact than network size on the probability of hardware success

a review of the stern review on the economics of climate change how much and how fast should we react to the threat of global warming the stern review argues that the damages from climate change are large and that nations should undertake sharp and immediate reductions in greenhouse gas emissions an examination of the review s radical revision of the economics of climate change finds however that it depends decisively on the assumption of a near zero time discount rate combined with a specific utility function the review s unambiguous conclusions about the need for extreme immediate action will not survive the substitution of assumptions that are consistent with today s marketplace real interest rates and savings rates

bad eggs learning by doing and the choice of technology we model long run economic development through technology adoption under scientific uncertainty about environmental effects there are four possible long run equilibria in a socially planned economy high growth adopt rapidly but abandon damaging technologies once revealed ddt cfcs cautious brake the introduction of new technologies to avoid mistakes genetically modified organisms no growth halt technological progress to preserve secondary knowledge and collapse adopt rapidly without ever abandoning damaging technologies in the base parameterization a short sighted social planner chooses the cautious strategy a far sighted planner chooses the high growth strategy unless damages are irreversible in which case the cautious strategy again dominates regulatory options in the market economy are investigated pollution taxes do not affect the firm s level of precaution if they can only be applied after the adopting firm has reaped the benefits however they do encourage the abandonment of damaging technologies liability rules do affect precaution but may lead to excessive caution or even a no growth trap

regional worlds from related variety in regional diversification to strategic coupling in global production networks this annual lecture paper bridges two influential but parallel literature strands on evolutionary economic geography eeg and global production networks gpn it argues that both strands are prem

optimal patenting and licensing of financial innovations recent court decisions starting with the state street decision in 1998 allow business methods to be patentable and now give financial institutions the option to seek patent protection for financial innovations this new patentability paradigm and the heterogeneity of characteristics associated with financial innovations pose an immediate decision problem for senior management what to patent we present a parsimonious decision framework that answers this question we show that for innovations with certain characteristics it is optimal not to patent even if the option of patenting and licensing is available our model emphasizes the role of embedded real options that arise from certain types of financial innovations the model provides an explanation of observed patenting behavior of financial institutions and the success of a wide class of innovations including swaps credit derivatives and pricing algorithms

technical change growth and trade new departures in institutional economics this article analyses the main theoretical and policy issues emerging from the literature on the evolutionary institutional economics of technical change the four distinguishing characteristics of which are that technology is often proprietary in nature only a part of knowledge is codifiable in handbooks blueprints patents and so on there are fundamental variations in the above two points across different technological fields and the evolution of knowledge is highly path dependent