the birth of a new industry entry by start ups and the drivers of firm growth the case of encryption software the paper analyses the birth of the encryption software industry esi a new niche in the software industry using a chandlerian perspective this work reports the main facts about fir entry and growth with a particular focus on start up strategies and actions since scale economies do not play a major role in esi the paper investigates the different sources of fir competitive advantages this work shows that innovation and product differentiation along with investments in co specialised assets are variables strongly correlated to young fir probability to survive and grow in doing so we have collected highly detailed information on product introduction us patents granted worldwide alliances and biographical data of fir founders 2004 elsevier b v all rights reserved jel classificatio m13 l86 o32

general technological capabilities product market fragmentation and markets for technology abstract the combination of a firm capability i e ability to generate general purpose technologies and a market structure condition i e fragmentation of downstream submarkets may encourage licensing in an industry that is the probability of licensing should increase when product markets are fragmented and technologies support general purposes evidence consistent with these predictions emerges from a 1993 to 2001 panel of 87 firms that owned at least one u s software security patent between 1976 and 2001 the analysis uncovers some fundamental characteristics of how external knowledge exploitation functions in particular technology markets thrive when product markets are fragmented and firms have the capability to produce general technologies

measuring the forest and income impacts of forest user group participation under malawi s forest co management program abstract we evaluate the impacts of forest user group participation under malawi s forest co management program on forest clearing and household income we use panel data collected in 2002 and 2009 in two districts of malawi we employ a two step regression strategy to control for endogenous selection into the program using propensity score weighting and propensity score analysis with non parametric regression we find that the program lowered the rate and extent of forest clearing we also find that the program had no discernible impact on household forest incomes suggesting that the program helped achieve environmental goals without compromising household livelihoods

economic transformation and income inequality in urban china evidence from panel data using panel data of 4 730 urban residents drawn from 20 cities in china this article examines changes in income determinants between the prereform and reform eras to guide this empirical study a conceptual model is developed that emphasizes the coevolution of politics and markets to synthesize theoretical ideas in the recent debate on the transformation of state socialist societies the findings show significant changes in returns to education and in the rise of private hybrid firms in the reform era there is also strong evidence of institutional persistence in returns to positional power and in the organizational hierarchy these findings reveal multifaceted processes of transformation that call for more sophisticated theoretical models and in depth institutional analyses

inside china s cities institutional barriers and opportunities for urban migrants one of the most glaring legacies of 20thcentury chinese socialism is a sharp and widened divide between china s urban and rural areas china s widened urban rural divide arose from a socialist industrialization process which created a hastened heavy industrial base at the expense of its rural population china s vast rural population not only endured a standard of living far below that in the urban sector they were also denied access to many social welfare benefits and social mobility opportunities martin king whyte 1996 this urban rural gap in social and economic wellbeing together with a massive reservoir of rural surplus labor and an acute shortage of consumer goods formed the driving forces for china s change of migration control policy and for the rapid increase of rural migrants in chinese cities though the exact number of migrants is still hard to ascertain due to both a lack of consensus in the definition of migrant and the absence of an authoritative national survey migrants prominent presence in chinese cities is hardly disputable in china s largest cities for instance it is often quoted that at least one out of every five persons is a migrant and most likely a migrant from rural areas in shanghai the number of migrants rose tenfold in one decade from 0 26 million in 1981 to 2 81 million in 1993 the percentage of local residents who were migrants correspondingly rose from less than 5 percent in the early 1980 s to 21 7 percent in 1993 changming sun 1997 in beijing the number of migrants was 3 29 million in 1994 compared to a locally registered population of 10 63 million for the whole municipality and 6 million for its city districts dangsheng ji et al 1996 p 95 in city districts one out of every three persons in beijing is a temporary migrant from elsewhere most of these recorded migrants are also genuine migrants not short term visitors more than 60 percent had stayed for more than half of a year and only 17 percent had been in beijing for less than one month three quarters of all the surveyed migrant population listed business or employment as their purpose of stay ji et al 1996 pp 96 97 rural migrants account for over threequarters of all migrants in large chinese cities in shanghai for instance a survey in 1995 found that 88 1 percent of all migrants had their place of household registration in the countryside wang and zuo 1997 similarly in beijing where one expects to see a higher circulation of urban to urban migrants close to 80 percent of migrants surveyed in late 1994 were peasants before moving into beijing xiuhualiu 1996 p 112

agricultural household models extensions applications and policy this book presents the basic model of an agricultural household that underlies most of the case studies undertaken so far the model assumes that households are price takers and is therefore recursive the decisions modeled include those affecting production and the demand for inputs and those affecting consumption and the supply of labor comparative results on selected elasticities are presented for a number of economies the empirical significance of the approach is demonstrated in a comparison of models that treat production and consumption decisions separately and those in which the decisionmaking process is recursive the book summarizes the implications of agricultural pricing policy for the welfare of farm households marketed surplus the demand for nonagricultural goods and services the rural labor market budget revenues and foreign exchange earnings in addition it is shown that the basic model can be extended in order to explore the effects of government policy on crop composition nutritional status health saving and investment and to provide a more comprehensive analysis of the effects on budget revenues and foreign exchange earnings methodological topics primarily the data requirements of the basic model and its extensions along with aggregation market interaction uncertainty and market imperfections are discussed the most important methodological issues the question of the recursive property of these models is also discussed

the changing technology of technological change general and abstract knowledge and the division of innovative labour abstract in the past most innovations have resulted from empiricist procedures the outcome of each trial yielding knowledge that could not be readily extended to other contexts while trial and error may remain the primary engine of innovation developments in many scientific disciplines along with progress in computational capabilities and instrumentation are encouraging a new approach to industrial research instead of relying purely on trial and error the attempt is also to understand the principles governing the behaviour of objects and structures the result is that relevant information whatever its source can now be cast in frameworks and categories that are more universal the greater universality makes it possible for the innovation process to be organised in new ways firms can specialise and focus upon producing new knowledge and the locus of innovation may be spread across both users and producers more generally the use of general and abstract knowledge in innovation opens up the possibility for a division of labour in inventive activity the division of innovative labour the implications for public policy especially that on intellectual property rights are discussed

explaining the attacker s advantage technological paradigms organizational dynamics and the value network abstract understanding when entrants might have an advantage over an industry s incumbent firms in developing and adopting new technologies is a question which several scholars have explained in terms of technological capabilities or organizational dynamics this paper proposes that the value network the context within which a firm competes and solves customers problems is an important factor affecting whether incumbent or entrant firms will most successfully innovate in a study of technology development in the disk drive industry the authors found that incumbents led the industry in developing and adopting new technologies of every sort identified by earlier scholars at component and architectural levels competency enhancing and competency destroying incremental and radical as long as the technology addressed customers needs within the value network in which the incumbents competed entrants led in developing and adopting technologies which addressed user needs in different emerging value networks it is in these innovations which disrupted established trajectories of technological progress in established markets that attackers proved to have an advantage the rate of improvement in product performance which technologists provide may exceed the rate of improvement demanded in established markets this mismatch between trajectories enables firms entering emerging value networks subsequently to attack the industry s established markets as well

determinants of conservation among the rural poor a charitable contribution experiment this paper examines how conservation decisions are affected by environmental degradation donations to an environmental ngo and participation in actual conservation activities capture individual preferences for environmental conservation environmental degradation is measured both through survey based data on experiences of deforestation and environmental shocks and through indices of deforestation constructed with gis data the results show that being exposed to environmental degradation is correlated both with higher donations and conservation behavior the relationship between conservation choices and individual social preferences is also explored experimental measures of individual altruism and inequality aversion and survey measures of trust time preferences and civic engagement are correlated with donations and real world conservation decisions respectively these findings show the role of environmental awareness in fostering environmental conservation even in very poor settings they also highlight the potential of experiments which closely mirror real world decisions to generate conclusions generalizable to individual behavior outside the laboratory

successes and failures in the markets for technology market mediated contracts for technology trade are bound by several transaction costs this paper argues that as these transaction costs become less severe markets for technology can help improve three market failures i rd ii externalities in potentially public rd and iii deviations from marginal cost pricing in the downstream product markets in addition with larger markets of potential users the technology suppliers will have incentives to produce more general technologies which span a wider number of firms or industries markets for technology also produce new failures in particular they induce deviation from marginal cost pricing in the sale of the technology and they generate externalities associated with complementary r d and other investments made by the independent buyers and suppliers that operate in them the paper concludes by discussing policy implications

a note on the parametric three step estimator in structural labor supply models abstract in the estimation of structural models of labor supply simultaneous equation systems are frequently used often these systems are estimated by three step methods that are based on the ideas developed by heckman econometrica 47 1979 153 161 although for the first two steps the statistical theory for the resulting estimators is well established the same cannot be said for the third step as a consequence most of those empirical inferences rely simply in incorrect statistics in this article we give the theory and a brief example for a fully parametric three step estimator

market transition and the persistence of power the changing stratification system in urban china research on transitional socialist societies has explored trends in income inequality and issues concerning who gains and who loses during market reforms we find that income inequality in a major chinese city declined only slightly during the first decade of reform policies it then increased dramatically in the subsequent five years strategic position in the state bureaucracy continues to be an important determinant of income although connections to the market system are becoming alternate sources of advantage we interpret these findings in light of the historical and institutional context of urban china

getting ahead in urban china this article argues that structural segmentation is a universal phenomenon in all complex societies and across political economies each political economy uses specific criteria in delineating segments of its economic and work organizations furthermore it is argued that segmentation identification constitutes a critical destination status for individuals engaged in the status attainment process a representative sample of the working population in tianjin china is analyzed to show that entrance into the core sectors state agencies and enterprises rather that the job per se constitutes the primary goal of status attainment entering into a more desirable work unit sector in china takes on differential significance and process for males and females formales the direct effect of intergenerational factors i e the effect of father s work unit sector is evident for females such an effect is only indirect instead to a great extent their status attainment also upward occupational mobility acr

agricultural expansion and deforestation modelling the impact of population market forces and property rights abstract this paper compares four different modelling approaches to agricultural expansion and deforestation and explores the implications of assumptions about the household objectives the labour market and the property rights regime a major distinction is made between population and market based explanations many of the popular policy prescriptions are based on the population approach assuming subsistence behaviour and limited market integration within a more realistic particularly for the long term effects market approach well intentioned policies such as agricultural intensification programmes may boost deforestation many forest frontier contexts are also characterized by forest clearing giving farmers land rights deforestation becomes an investment to the farmer and a title establishment strategy land titling and credit programmes may therefore increase deforestation

the moderating role of submarket dynamics on the product customization firm survival relationship in this paper we examine how the provision of product customization services affects firm survival integrating literatures on industry evolution product related adapting services and entry deterrence we hypothesize that the relationship between product customization the costly modification of a product to cater to customer needs and firm survival differs across industries based on the extent of submarkets we argue that in industries that feature submarkets more prominently the positive association between product customization and firm survival is stronger for two conceptually distinct and empirically distinguishable mechanisms customizing firms enter new submarkets and also deter potential entry we conclude that offering product customization services has strategic benefits that sometimes outweigh the cost of coordinating with customers

modeling choice of fuelwood source among rural households in malawi a multinomial probit analysis abstract this paper addresses two questions what determines household s choice of fuelwood source and what are the environmental consequences of fuelwood collection choices we address these questions by estimating the multinomial probit model using survey data for households surrounding chimaliro and liwonde forest reserves in malawi after controlling for heterogeneity among households we find strong substitution opportunities across fuelwood collection sources attributes of the fuelwood sources size and species composition and distance to the sources are the most important determinants of fuelwood choice further results show that customary managed forests generate environmental benefits by reducing pressure on both plantation forests and forest reserves these findings support the need to strengthen community based institutions to manage local forest resources

the place of entrepreneurship in the economics that might have been it is a familiar observation that entrepreneurship is not easily accommodated within the framework of neoclassical economic theory drawing inspiration from an ancient critique of neoclassicism by veblen q j econ 12 4 373 397 1898 this paper attributes the difficulty to the tension between normative accounts of decision making as in mainstream theory and ideas of causation that are standard in the sciences normative theories naturally privilege the conjectured future over the experienced past in the quest for explanatory factors evolutionary theories elucidate instead the mechanisms of cumulative causation veblen that perpetually produce the present from the past entrepreneurship of the innovative schumpeterian kind seizes opportunities that emerge in complex evolving contexts of technological and institutional change a theory that gives due weight to cumulative causation sheds greater light on these processes than prevailing mainstream theory can and that is a key advantage of an evolutionary theory

the dynamo and the computer an historical perspective on the modern productivity paradox the dynamo and the computer an historical perspective on the modern productivity paradox author s paul a david source the american economic review vol 80 no 2 papers and proceedings of the hundred and second annual meeting of the american economic association may 1990 pp 355 361 published by american economic association stable url http www jstor org stable 2006600 accessed 08 12 2010 01 40

property rights and stratification in socialist redistributive economies in socialist economies work organizations differ widely in the compensation they provide employees despite the absence of key product and labor market processes thought to ex plain such inequalities in market economies existing theories of stratification in socialist economies focus on the power and privilege of elites but inequalities among organizations are not created by political particularism or elite power in this paper i sketch elements of an institutional theory of stratification anchored in a conception of property rights the right to derive income from productive assets two aspects of property rights guide the analysis 1 the dispersion of property rights across a hierarchy of governmentjurisdictions and 2 the exercise of these rights by government jurisdictions as they extract revenues primarily through taxation extraction of revenues from a work organization varies with the budgetary resources of a government jurisdiction and the dependence of that jurisdiction on the out puts of the organization variation in revenue extraction in turn creates inequalities among work organizations in their abilities to provide benefits to employees an analysis of survey data on the provision of housing and benefits by work organizations in the large industrial city of tianjin china provides provisional support for these ideas s tudents of communist states have had little reason to dispute lenski s 1966 claim that the distribution of rewards in a society is a func tion of the distribution of power p 63 as ex emplified in szelenyi s wedding of elite theory to institutional economics this idea has been de veloped primarily in terms of the power of class es or occupational groups szelenyi 1978 be gan with the observation that planned economies operate according to redistributive rather than market principles however the process of re

technological innovations and sectoral change transformative capacity adaptability patterns of change an analytical framework following up on recent debates about sectoral systems of innovation and production the paper introduces a heuristic framework for analyzing and explaining distinct patterns of technology based sectoral change the concept is based on two interrelated influencing factors the first is the sectoralspecific transformative capacity of new technologies themselves that is their substantial or incremental impact on socioeconomic and institutional change in a given sectoral system the second is the sectoral adaptability of socioeconomic structures institutions and actors confronted with the opportunities presented by new technologies the first factor the sectoral transformative capacity of new technologies enables us to identify the technology based pressure to change and adjust the structural institutional and organizational architectures of the sectoral system the second complementary factor sectoral adaptability helps us to discern the distinct social patterns of anticipating and adopting this technology based pressure the specific interplay between the two influencing factors creates distinguishable modes of sectoral transformation ranging from anticipative and smooth adjustments to reactive and crisis ridden patterns of change even processes of radical sectoral change continue over longer periods of mismatch and are characterized by numerous and mostly gradual organizational structural and institutional transformations

diffusion of general purpose technologies understanding patterns in the electrification of us manufacturing 1880 1930 i examine the diffusion of the electric motor between 1880 and 1930 i find that long lag times are determined by the degree of technical difficulty in application after solutions became available electrification generally proceeded rapidly to make this claim i explore three industries urban transit printing and paper making i identify points at which viable electric solutions to particular problems were found and examine adoption patterns both before and after these events the explanation contrasts with common demand side explanations such as costly user adaptation or information diffusion and imposes conditions on the application of standard supply side models the results are particularly important when examining the diffusion of broadly defined technological categories such as general purpose technologies in the history of diffusion of many innovations one cannot help being struck by two characteristics of the diffusion process its apparent overall slowness on the one hand and the wide variations in the rates of acceptance of different inventions on the other rosenberg 1972 191 copyright 2005 oxford university press

the patent paradox revisited an empirical study of patenting in the u s semiconductor industry 1979 1995 we examine the patenting behavior of firms in an industry characterized by rapid technological change and cumulative innovation recent survey evidence suggests that semiconductor firms do not rely heavily on patents to appropriate returns to r d yet the propensity of semiconductor firms to patent has risen dramatically since the mid1980s we explore this apparent paradox by conducting interviews with industry representatives and analyzing the patenting behavior of 95 u s semiconductor firms during 1979 1995 the results suggest that the 1980s strengthening of u s patent rights spawned patent portfolio races among capital intensive firms but it also facilitated entry by specialized design firms

origins and pathways of innovation in the third industrial revolution this study examines the factors that shaped the long term evolution of the ict industry in sweden 1950 2013 using a new historical microdatabase on actual innovation output the driving forces and technological interdependencies in the third industrial revolution are chronicled the results of this study support some stylized facts about technological interdependencies in general purpose technologies a closely knitted set of industries have provided positive and negative driving forces for the development of ict innovations the historical evolution of gpts can in this perspective be described as a sequence of development blocks

forest dependence and participation in cpr management empirical evidence from forest co management in malawi abstract we develop an endogenous sample selection model to investigate how forest dependence influences a household s decision to participate in forest co management program using data from chimaliro and liwonde forest reserves in malawi we find that where forests primarily have a gap filling or safety net role in chimaliro high forest dependency induces higher rates of participation however with more commercial forest uses and a more heterogeneous social context as in liwonde high forest dependency reduces the incentives for participation the findings point to the need to design parallel interventions alongside the forest co management program in order to provide supplementary income sources to participants and increase the incentives for participation

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

models of technology diffusion abstract the literature on new technology diffusion is vast and it spills over many conventional disciplinary boundaries this paper surveys the literature by focusing on alternative explanations of the dominant stylized fact that the usage of new technologies over time typically follows an s curve the most commonly found model which is used to account for this model is the so called epidemic model which builds on the premise that what limits the speed of usage is the lack of information available about the new technology how to use it and what it does the leading alternate model is often called the probit model which follows from the premise that different firms with different goals and abilities are likely to want to adopt the new technology at different times in this model diffusion occurs as firms of different types gradually adopt it there are actually many ways to generate an s curve and the third class of models which we examine are models of density dependence popularized by population ecologists in these models the twin forces of legitimation and competition help to establish new technologies and then ultimately limit their take up finally we look at models in which the initial choice between different variants of the new technology affect the subsequent diffusion speed of the chosen technology such models often rely on information cascades which drive herd like adoption behaviour when a particular variant is finally selected

determinants of collective action on the local commons a model with evidence from mexico i develop a model of cooperation in small irrigation systems i give conditions under which an equalizing redistribution of wealth increases the level of equilibrium cooperation but also show that some redistributions that increase inequality can also increase cooperation the distributive rule a combination of arrangements for maintenance cost sharing and water allocation also affects the cooperation level i estimate statistical models of cooperation for three maintenance indicators using field data from a study of mexican irrigation societies social heterogeneity and landholding inequality are significantly associated with lower maintenance distributive rules that allocate water proportionally to landholding size likewise reduce maintenance

contracting for tacit knowledge the provision of technical services in technology licensing contracts abstract recent research on the economic payoff from new technology has emphasized the importance of tacit knowledge or know how this paper shows that arm s length contract can overcome the problems in contracting for know how by bundling complementary inputs with know how in a technology package and leveraging the superior enforceability of contracts over the latter in the empirical part of this paper the relationship between bundling and transfer of know how is analyzed using indian data the results imply that tied sales of inputs may increase the efficiency of contracts involving the transfer of know how a striking result in the context of the current north south debates on intellectual property rights is the packaging of patents with know how

why and how innovations get adopted a tale of four models scholars studying innovation have proposed several different models of the adoption process this essay identifies two broad dimensions which differentiate the principal models the strength of the evidence regarding an innovation s efficacy and the extent of increasing returns in this essay we propose that differences across these dimensions map to four models of the adoption diffusion process prominent in the literature we then analyze the diffusion patterns of six well studied innovations in terms these variables and discuss which models seems to fit them best

the influence of hukou and college education in china s labour market this paper examines the impact of hukou and college education on job placement and wage attainment for chinese rural migrant workers in the cities the analysis of the 2010 chinese general social survey shows that when rural born individuals gain both urban hukou and college education they enjoy equal job sector placement and they earn significantly higher wages than the college educated locals but in the absence of a rural to urban hukou transfer migrants have fewer opportunities to go to college than local peers and even college education does not gain a migrant an equal chance of working in the state sector or receiving equal earnings a major contribution of this study is to suggest a nine category analytic scheme which takes into account how education hukou and type of workplace affect one another in jointly influencing labour market inequality between rural migrants and urbanite workers

systems competition and network effects this paper discusses firm behavior market performance and the public and private institutions that arise in systems markets i e markets where consumers use compatible components together to generate benefits in such markets which include communications networks and hardware software networks popular products are inherently more valuable these network effects can drive corporate strategies and are critical in understanding innovation in many high technology markets the discussion here emphasizes the dynamics of consumer adoption decisions in the presence of network effects competition between incompatible systems and how suppliers choose which components are compatible and which are not

striving for a large market evidence from a general purpose technology in action several scholars have tried to focus on growth accounting of specific examples of general purpose technologies gpts but what are the factors that might make a general purpose technology succeed or fail once the invention has been triggered this paper is a preliminary answer to this question and attempts to study gpts from an ex ante perspective trying to understand what is the behaviour and performance of the producer firms and what the factors are that can favour or hamper their diffusion in the application sectors the paper follows a historical perspective on a control technology introduced in the last few decades by a silicon valley start up company