universities as strategic actors in the knowledge economy the university plays a particular role in the global knowledge economy as provider of both public and private goods related to education research and societal impacts at the same time universities in the plural play many different roles and exhibit a rich experimentation in organizational forms and knowledge foci adapting to local and global conditions there is also an aspect of uneven regional development and agglomeration of competencies as the individuals and organizations must also balance local interests and stakeholders with global networks in science technology and innovation thus we can identify empirically that universities are changing their strategies organizational structures and competencies in order to respond to new external demands and internal management practices bonaccorsi and daraio 2007 the question is how to explain this theoretically and identify empirical trends and pathways little previous research has focused upon how universities are learning to compete and why they try to act strategically this article as well as the selected articles in the special issue focus upon how and why this transition is occurring as well as the impacts for understanding universities as strategic actors in the knowledge economy section 2 provides an overview it introduces the three themes and articles collected in this special issue providing a summary of the main contributions section 3 then provides our perspective on how to analyze and understand universities as strategic actors it discusses relevant literature as a way of beginning to provide our perspective of the necessity and elements involved in a more united theoretical and empirical understanding this includes statement of predictions as well as empirical evidence that these trends are occurring section 4 concludes with relevant research themes for the future

credit market constraints consumption smoothing and the accumulation of durable production assets in low income countries investments in bullocks in india in this paper we formulate and estimate a finite horizon structural dynamic model of agricultural investment behavior that incorporates the major features of low income agricultural environments income uncertainty constraints on borrowing and rental markets and the use of investment assets to generate income and smooth consumption the model is fit to longitudinal indian household data on farm profits bullock stocks and pump sets the estimated structural parameters are used to assess the effects on the life cycle accumulation of bullocks agricultural profits and welfare associated with complete markets and bullock liquidity and with second best policies that provide assured sources of income to farmers and weather insurance

the livelihood impacts of cash transfers in sub saharan africa beneficiary perspectives from six countries summary cash transfers cts are a social protection mechanism to reduce the poorest households vulnerability to shocks and build human capital by smoothing consumption and sustaining expenditure on education and social welfare our study examines whether and how cts go beyond welfare objectives to promote livelihoods presenting a cross case analysis using original qualitative data on beneficiary perspectives from six african countries kenya ethiopia malawi lesotho zimbabwe and ghana we explore ct livelihood impacts within household economies and social networks paying attention to gender issues we find that a small but predictable flow of cash improves strategic livelihood choices and stimulates productive investments including through positive effects on beneficiary entry into risk sharing arrangements and networks for economic collaboration levels of household vulnerability and labor constraint nevertheless significantly mediate the ability of cts to consolidate livelihood outcomes the varying availability of economic opportunities plus effective program implementation also shape livelihood impact incorporating beneficiary perspectives brings to the fore the multi dimensionality of ct effects on experiences of poverty and deprivation including gender dynamics and intangibles such as dignity and respect they add powerful realism to the influence of the ct on both immediate survival and livelihood choices beyond this they confirm wider knowledge on productive impact and bring nuance to the conditions under which and mechanisms by which beneficiaries use cts to build productive capability and assets and to make strategic livelihood choices

stationary multi choice bandit problems this note shows that the optimal choice of k simultaneous experiments in a stationary multi armed bandit problem can be characterized in terms of the gittins index of each arm the index characterization remains equally valid after the introduction of switching costs

towards a capability theory of innovating firms implications for management and policy author s teece dj abstract the author 2017 business enterprises lie at the core of ecosystems that drive economic development and growth in market economies yet until recently mainstream economics has mostly treated firms like homogeneous black boxes run by opportunistic managers the field of strategic management has developed a more nuanced approach to the understanding of how firms are created organized and grow how they innovate and compete and how managers manage one of the leading paradigms in the field is the dynamic capabilities framework in this paper contrasts and complementarities are drawn between dynamic capabilities and economic theories of the firm including transaction cost economics and agency theory connections to the cambridge school are highlighted including the duality between keynes s animal spirits and the dynamic capabilities entrepreneurial owner manager leibenstein s x inefficiency is juxtaposed here with d ineffectiveness knowledge based theories of the firm consistent with cambridge conventions emerge intellectual exchange between strategic management and economics is encouraged to help improve the intuition behind models of firms and the economy

price dispersion and incomplete learning in the long run abstract in each period a seller chooses a price and the customer for that period buys either one unit or nothing the relationship between price and purchase probability is one of two linear functions it is shown that the seller behaving optimally does not necessarily learn which function is the actual relationship since there can be a positive probability of sequences of prices converging to the price at which the two functions give the same purchase probability

search theoretic models of the labor market a survey we survey the literature on search theoretic models of the labor market we show how this approach addresses many issues including the following why do workers sometimes choose to remain unemployed what determines the lengths of employment and unemployment spells how can there simultaneously exist unemployed workers and unfilled vacancies what determines aggregate unemployment and vacancies how can homogeneous workers earn different wages what are the tradeoffs firms face from different wages how do wages and turnover interact what determines efficient turnover we discuss various modeling choices concerning wage determination and the meeting process including recent models of directed search

principles of neo schumpeterian economics within the last 25 years great progress has been made in neo schumpeterian economics this branch of economic literature which deals with dynamic processes causing qualitative transformation of economies basically driven by the introduction of novelties in their various and multifaceted forms by its very nature innovation and in particular technological innovation is the most exponent and most visible form of novelty however neo schumpeterian economics should be concerned with all facets of open and uncertain developments in socio economic systems a comprehensive neo schumpeterian approach therefore has to consider not only transformation processes going on e g on the industry level of an economy but also on the public and monetary side of an economic system our contribution introduces those extensions and complements to a comprehensive neo schumpeterian economic theory and develops some signposts in the sense of a roadmap for necessary strands of analysis in the future copyright 2007 oxford university press

on the equilibrium proportion of innovation and imitation abstract a game theoretic model is developed that analyses firms decisions concerning innovation and imitation it is shown that in a game of identical players an equilibrium between innovation and imitation exists this non cooperative equilibrium is globally stable if a sequential time structure is supposed however the equilibrium is not pareto efficient

a framework for integrated risk management in international business treatments of risk in the international management literature largely focus on particular uncertainties to the exclusion of other interrelated uncertainties this paper develops a framework for categorizing the uncertainties faced by firms operating internationally and outlines both financial and strategic corporate risk management responses

is there persistence in the impact of emergency food aid evidence on consumption food security and assets in rural ethiopia we identify the impact of emergency food aid programs after the 2002 drought in rural ethiopia on future welfare based on a difference in differences matching estimator participation in food for work increases growth in total consumption and food consumption eighteen months after the drought separately receiving free food raises growth in food consumption but surprisingly negatively impacts food security food for work benefited households in the middle and upper tail of the consumption distribution while the better targeted free food program benefited the poorest evidence suggests these impacts demonstrate accumulated and persistent effects of food aid received in the first twelve months after the drought

the intrinsic limits of modern economic theory the emperor has no clothes assumptions of the uniqueness and stability of general equilibrium in a walrasian framework have no theoretical justification this paper argues that the key reason for this is that the walrasian model treats people as acting independently of one another especially in their demand behavior this independence plays an essential role in constructing economies with arbitrary excess demand functions thus making individual behavior dependent or similar may open the way to obtaining meaningful restrictions on aggregate excess demand functions copyright 1989 by royal economic society

reaping what you sow an empirical analysis of international patent harmonization abstract this paper extends analysis of the gatt uruguay round by quantifying the impact of international patent harmonization as implied by the trips agreement patent harmonization has the capacity to generate large transfers of income between countries the us being the major beneficiary developing countries are major contributors to these transfers but canada the uk and japan also make sizable contributions

joseph schumpeter and the german historical school so far schumpeter s affinities with the german historical school ghs have been inadequately acknowledged or even unexplored in major accounts of schumpeter s work this essay argues that schumpeter formulated some of his principal theses in accordance with the conceptual framework of the ghs schumpeter s affinity with the ghs is established by examining his writings and his relationship with major scholars such as schmoller max weber and sombart it is demonstrated that schumpeter s works built heavily on ghs insights and he even referred positively to the ideas of certain of its members however some obvious differences between schumpeter and the ghs are observed the paper concludes that the ghs should inspire further research in evolutionary economics

cash transfer programme productive activities and labour supply evidence from a randomised experiment in kenya this paper reports analysis of the impact of kenya s cash transfer for orphans and vulnerable children programme on the household decisions on productive activities using data from a randomized experimental design results show that the programme had a positive and significant impact on food consumption coming from home production accumulation of productive assets especially on the ownership of small livestock and on formation of nonfarm enterprise especially for females the programme has provided more flexibility to families in terms of labour allocation decisions particularly for those who are geographically isolated the programme was also found to have reduced child labour an important objective of the programme however we find very little impact of the programme on direct indicators of crop production

demand heterogeneity and technology evolution implications for product and process innovation the evolution of technology has been a central issue in the strategy and organizations literature however the focus of much of this work has been on what is essentially the supply side of technical change the evolution of firm capabilities we present a demand based view of technology evolution that is focused on the interaction between technology development and the demand environment in which the technology is ultimately evaluated we develop a formal computer simulation model that explicitly considers the influence of heterogeneity in market demand the presence of consumers with different needs and requirements on firms innovation choices the model is used to examine the dynamics of product and process innovation utterback and abernathy 1975 the analysis reveals that demand heterogeneity offers an alternative to supply side explanations of the technology life cycle further by considering the implications of decreasing marginal utility from performance improvements the model highlights the role of technologically satisfied consumers in shaping innovation incentives and suggests a rationale for a new stage in the technology life cycle characterized by increasing performance at a stable price the stage has not yet been treated formally in the literature but is widely observed most prominently in digital and information based technologies

the learning curve market dominance and predatory pricing sufficient conditions for id and iid are given in the case of two step learning in which a firm reaches the bottom of its learning curve after just two sales however examples are also constructed for the two step learning case in which neither id nor iid holds it is also shown that in equilibrium iid implies that learning is privately disadvantageous although it is socially advantageous finally introducing avoidable fixed costs and possible exit into the model yields a new theory of predatory pricing based on the learning curve hypothesis

migration transfers and economic decision making among agricultural households an introduction abstract the increasing volume of remittances and public transfers in rural areas of the developing world has raised hopes that these inflows may serve as an effective mechanism for reducing poverty in the long term by facilitating investments and raising productivity particularly in agriculture where market failures are most manifest the seven papers in this special issue systematically test the relationship between transfers and productive spending amongst rural households in six different countries overall the studies embrace a less optimistic view of the role of migration and public and private transfers on agriculture with migration as facilitating a transition away from agriculture or to models of less labour intensive agriculture

cash transfer programs and agricultural production the case of malawi cash transfer programs are increasingly utilized to combat poverty and hunger while building the human capital of future generations however they have been faulted by some for failing to build the productive capacity of current generations this article analyzes the impact of the malawi social cash transfer scheme on agricultural production the results show strong increases in ownership of productive agricultural assets in time devoted to household farms and in food types consumed from own production coupled with a sharp decrease in ganyu labor which is often used as a coping mechanism once food stores have been depleted these results are most likely achieved by helping farmers overcome credit and liquidity constraints this research shows that cash transfer programs can help the capacity of extremely poor farm households to expand agriculture production even if the goal of the program is focusing on other dimensions of poverty

intellectual property rights and foreign direct investment abstract this paper develops a product cycle model with endogenous innovation imitation and foreign direct investment fdi we use this model to determine how stronger intellectual property rights ipr protection in the south affects innovation imitation and fdi we find that stronger ipr protection keeps multinationals safer from imitation but no more so than northern firms instead the increased difficulty of imitation generates resource wasting and imitation disincentive effects that reduce both fdi and innovation the greater resources absorbed in imitation crowd out fdi reduced fdi then transmits resource scarcity in the south back to the north and consequently contracts innovation

social mobility and redistributive politics just like economists voters have conflicting views about redistributive taxation because they estimate its incentive costs differently we model rational agents as trying to learn from their dynastic income mobility experience the relative importance of effort and predetermined factors in the generation of income inequality and therefore the magnitude of these incentive costs in the long run left wing dynasties believing less in individual effort and voting for more redistribution coexist with right wing dynasties this allows us to explain why individual mobility experience and not only current income matters for political attiitudes and how persistent differences in perceptions about social mobility can generate persistent differences in redistribution across countries

is firm renewal stimulated by negative shocks the status of negative driving forces in schumpeterian and darwinian economics the idea that firms are more innovative under difficult external condition has no prominent place in evolutionary economics the neo schumpeterians agree with schumpeter that innovation is stimulat

public support to innovation and imitation in a non scale growth model abstract this paper studies technology policy within a version of jones s 1995 r d based models of economic growth journal of political economy 103 759 784 non scale r d based growth framework that incorporates imitation of foreign techniques in the model imitation is the most important source of productivity growth at the beginning of the convergence process whereas innovation dominates later on in addition the transitional dynamics of the model can account for well known empirical regularities regarding the relationship between the level of economic development and public support to technology innovation and imitation the paper shows as well that even though policy in jones type non scale models has no long run growth effects level effects can be substantial

social experimentation with interdependent and expanding technologies how do successive forward looking agents experiment with interdependent and endogenous technologies in this article trying a radically new technology not only is informative of the value of similar technologies but also reduces the cost of experimenting with them in effect expanding the space of affordable technologies successful radical experimentation has mixed effects it improves the immediate outlook for further experimentation but decreases the value and the marginal value of experimentation in a longer term resulting in less ambitious incremental experimentation and in a reduced size of radical experimentation incremental experimentation lowers the option value of similar technologies which may spur a new wave of radical experimentation however experimentation eventually stagnates for all parameters of the model

on the genesis of multinational foreign affiliate networks multinational enterprises mnes develop their networks of foreign affiliates gradually over time instead of exploring all profitable opportunities immediately they first establish themselves in their home countries and then enter new markets stepwise we argue that this behavior is driven by uncertainty concerning a firm s success in new markets after entry the firm collects information which is used to update its beliefs about its performance in a market as conditions in different markets are correlated the information gathered in one of them can also be used to update beliefs elsewhere with the degree of correlation depending on issues such as the geographical or cultural distance between markets this correlated learning may render it optimal to enter markets sequentially investment in market a is only followed by entry in market b if the firm was sufficiently successful in a the prediction that firms start their expansion in markets that are closer to their home base and then proceed step by step is supported by our empirical analysis which features the universe of foreign affiliates held by german multinationals based on a rich set of benchmark estimates and sensitivity checks we identify correlated learning across markets beyond alternative explanations as a key driver of gradualism in the genesis of mnes foreign affiliate networks

cash transfers and labor supply evidence from a large scale program in iran abstract this paper examines the impact of a national cash transfer program on labor supply in iran in 2011 iran started monthly deposits of cash into individual accounts covering more than 70 million people and amounting to 28 of the median per capita household income the payments were compensation for the sudden removal of hefty energy subsidies the program has been heavily criticized for its disincentive for work especially for the poor we use panel data to study the causal effect of the transfers on labor supply using exogenous variation in the time households first started receiving transfers and in the intensity of treatment which we define as the share of net transfers from the program in total per capita household expenditures we find no evidence that cash transfers reduced labor supply in terms of hours worked or labor force participation to the contrary we find positive effects on the labor supply of women and self employed men

entry and patenting in the software industry to what extent are firms kept out of a market by patents covering related technologies do patents held by potential entrants make it easier to enter markets we estimate the empirical relationship between market entry and patents for 27 narrowly defined categories of software products during the period 1990 2004 controlling for demand market structure average patent quality and other factors we find that a 10 increase in the number of patents relevant to market reduces the rate of entry by 3 8 and this relationship intensified following expansions in the patentability of software in the mid 1990s however potential entrants with patent applications relevant to a market are more likely to enter it finally patents appear to substitute for complementary assets in the entry process because patents have both greater entry deterring and entry promoting effects for firms without prior experience in other markets this paper was accepted by bruno cassiman business strategy

the impact of ethiopia s productive safety net programme and its linkages abstract this paper assesses the impact of ethiopia s productive safety nets programme psnp the largest social protection programme in sub saharan africa outside of south africa using propensity score matching techniques we find that the programme has little impact on participants on average due in part to transfer levels that fell far below programme targets participants with access to both the psnp and packages of agricultural support are more likely to be food secure to borrow for productive purposes use improved agricultural technologies and operate non farm own business activities however beneficiaries did not experience faster asset growth

the benefit of crises for economic reforms when expenditures consistently outrun revenue the resulting inflation may have the effect of convincing the public and government that taxes must be raised to finance public investment in the advanced industrial countries income taxation and big spurts in taxation generally have become possible only under the impact of major emergency and crisis mostly in wartime in a number of developing countries in

schumpeterian dynamics an evolutionary model of innovation and imitation abstract this paper develops a simple evolutionary model of innovation and imitation it analyzes how dynamic interactions between equilibrating force of imitation and disequilibrating force of innovation mold the evolutionary pattern of an industry s state of technology and shows that in this schumpeterian world the industry will never approach a neoclassical equilibrium with perfect knowlwdge even in the long run the paper also examines the steady state efficiency distribution of firms that characterizes the industry s long run and obtains some comparative dynamics results

transactions costs and agricultural household supply response we develop and estimate a model of supply response when transactions costs create a situation where some producers buy others sell and others do not participate in markets we present two rationales for why producing households may have different relationships to the market proportional and fixed transactions costs using data on mexican corn producers we estimate an empirical model that allows for separate tests of the significance of both types of transactions costs revealing that both fixed and proportional transactions costs matter for the estimation the results provide consistent estimates of supply elasticity and measures of the relative importance of factors determining both proportional and fixed transactions costs

schumpeter and georgescu roegen on the foundations of an evolutionary analysis qualitative change is widely recognised as a defining feature of evolution schumpeter and georgescu roegen put it at the centre of their methodological reasoning i revisit important contributions of these two authors paying attention to the immediate relationship of the major traits and treated issues between their works with reference to qualitative change their joint approach provides answers as to i why an evolutionary analysis has to necessarily apply a varied less formal set of methods as compared with modern static and dynamic analysis ii why an evolutionary analysis is a necessary component of economic analysis and iii how it can be seen as complementary to modern statics and dynamics they argued for methodological pluralism where the choice of methods shall derive from close observation of the subject matter under scrutiny georgescu roegen s reasoning shows the necessity of interdisciplinary contributions and the interrelation of economic activity and environmental impact and constraints putting environmental issues immediately on the evolutionary economics agenda the paper provides a new ground for evaluating georgescu roegen s own and their joint contribution to modern research

search for information on multiple products we develop a framework for continuous search for information on a choice set of multiple alternatives and apply it to consumer search in a product market when a consumer considers purchasing a product in a product category the consumer can gather information sequentially on several products at each moment the consumer can choose which product to gather more information on and whether to stop gathering information and purchase one of the products or to exit the market with no purchase given costly information gathering consumers end up not gathering complete information on all the products and need to make decisions under imperfect information under the assumption of constant informativeness of search we solve for the optimal search switch and purchase or exit behavior in such a setting which is characterized by an optimal consideration set and a purchase threshold structure this paper shows that a product is only considered for search or purchase if it has a sufficiently high expected utility

searching for good policies policymaking is hard policymakers typically have imperfect information about which policies produce which outcomes and they are left with little choice but to fumble their way through the policy space via a trial and error process this raises a question at the heart of democracy do democratic systems identify good policies to answer this question i introduce a novel model of policymaking in complex environments i show that good policies are often but not always found and i identify the possibility of policymaking getting stuck at outcomes that are arbitrarily bad notably policy stickiness occurs in the model even in the absence of institutional constraints this raises the question of how institutions and the political environment impact experimentation and learning i show how a simple political friction uncertainty over voter preferences interacts with political competition and policy uncertainty in a subtle way that surprisingly improves the quality of policymaking over time

decent rural employment and farm production efficiency empirical evidence from tanzania and ethiopia promoting decent rural employment by creating new jobs in rural areas and upgrading the existing ones could be one of the most efficient pathways to reduce rural poverty this article systematically investigates the impact of decent rural employment on agricultural production efficiency in ethiopia and tanzania the analysis applies an output oriented distance function approach with an estimation procedure that accounts for different technological demographic socioeconomic institutional and decent rural employment indicators data of the 2011 round of living standards measurement study integrated surveys on agriculture for the two countries are used and a set of indicators is derived to proxy core dimensions of decent rural employment the findings of our analysis show that decent rural employment contributes to agricultural production efficiency

imitation costs and patents an empirical study it has long been recognised that the costs of imitating new products have an important effect on the incentives for innovation in a market economy as arrow i962 and others have pointed out if firms can imitate an innovation at a cost that is substantially below the cost to the innovator of developing the innovation there may be little or no incentive for the innovator to carry out the innovation in their discussions of the innovation process economists frequently have called attention to the major role played by the costs of imitation but there has been little or no attempt to measure these costs to test various hypotheses concerning the factors influencing them or to estimate their effects in this paper we report some findings of what seems to be the first study of this topic in addition we present data regarding the effects of patents on imitation costs and on the rate of innovation

the relationship between credit and productivity in chinese agriculture a microeconomic model of disequilibrium credit is an important element in agricultural production systems it allows producers to satisfy the cash needs induced by the production cycle which characterizes agriculture preparation planting cultivation and harvesting of the crops are typically done over a period of several months in which very little cash revenue is earned while expenditures on materials purchased inputs and consumption must be made in cash cash income is received a short time after the harvest in the absence of credit markets farmers would have to maintain cash reserves so as to facilitate production and consumption in the next cycle the availability of credit allows both greater consumption and greater purchased input use and thus increases welfare of the farmers

demand heterogeneity and technology evolution the evolution of technology has been a central issue in the strategy and organizations literature however the focus of much of this work has been on what is essentially the supply side of techn

learning by doing and the choice of technology the role of patience if agents learn by doing and are myopic less advanced firms might adopt new technologies while more advanced firms would stick with the old technology this kind of overtaking can also occur if agents are forward looking and have high discount rates however overtaking never occurs if agents are sufficiently patient a finite discount rate increases the set of states at which agents adopt new technologies so more patient agents tend to upgrade their technology more frequently journal of economic literature classification numbers d92 o14 o33

welfare optimal patent royalties when imitation is costly we identify welfare optimal patent royalties in a model of costly imitation entry and imperfect competition when the social planner may impose a compulsory license optimal royalties either blockade imitation facilitating unregulated monopoly or yield an aggregate zero profit efficient duopoly when duopoly is optimal the optimal per unit royalty pins the equilibrium price at the aggregate average cost and the optimal fixed royalty shifts surplus so the patentee and imitator break even efficient duopoly yields higher welfare than monopoly for sufficiently low invention cost and may also yield higher welfare than a prize system interestingly royalty payments may be negative because of this efficient duopoly may not be feasible if the planner must instead direct the courts to use such royalties

conditional cash transfers and agricultural production lessons from the oportunidades experience in mexico abstract this paper explores whether cash transfer programmes conditioned on human capital outcomes can influence agricultural production programme impact on food consumption from own production land use livestock ownership and agricultural spending are evaluated using first difference and weighted estimators in which weights are constructed from propensity scores the programme is found to increase the value and variety of food consumed from own production and to increase land use livestock ownership and crop spending impact estimates are found to differ across land use categories and procampo participation results support the hypothesis that transfers influence agricultural production and impacts are greater for households invested in agriculture

the evolution of new industries and the determinants of market structure several empirical regularities concerning firm growth rates and industry firm size distributions have been developed by studying primarily mature industries the primary purpose of this article is to bring together and extend empirical regularities on the evolution of new industries and to use these regularities to gain further insight into the forces governing industry evolution to explain these regularities a model is constructed which emphasizes how factors governing the early evolution of industries may shape their market structure at maturity it stresses how chance events and exogenous factors that influence the number of potential entrants to the industry the growth rate of incumbents and the ease of imitation of industry leaders will influence the ultimate number and size distribution of firms in the industry

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

searching and learning by trial and error i study a dynamic model of trial and error search in which agents do not have complete knowledge of how choices are mapped into outcomes agents learn about the mapping by observing the choices of earlier agents and the outcomes that are realized the key novelty is that the mapping is represented as the realized path of a brownian motion i characterize for this environment the optimal behavior each period as well as the trajectory of experimentation and learning through time applied to new product development the model shares features of the data with the well known product life cycle jel d81 d83 d92 l26

conditional cash transfers adult work incentives and poverty conditional cash transfer cct programs aim to alleviate poverty through monetary and in kind benefits as well as reduce future levels of poverty by encouraging investments in education health and nutrition the success of cct programs at reducing poverty depends on whether and the extent to which cash transfers affect adult work incentives the authors examine whether the progresa program of mexico affects adult participation in the labor market and overall adult leisure time and they link these effects to the impact of the program on poverty using the experimental design of progresa s evaluation sample the authors find that the program does not have any significant effect on adult labor force participation and leisure time their findings on adult work incentives are reinforced further by the result that progresa leads to a substantial reduction in poverty the poverty reduction effects are stronger for the poverty gap and severity of poverty measures

patent protection and r d with endogenous market structure in a model with endogenous number of innovating firms we show that whether patent protection increases r d investment is ambiguous and depends on the market demand function and the cost of r d if the market size increases with number of firms patent protection reduces r d investment if the cost of r d is sufficiently high and higher product differentiation increases the possibility of lower r d investment under patent protection if the market size does not increase with number of firms patent protection never reduces r d investment we find that welfare is lower under patent protection than under no patent protection

the life cycle of a competitive industry firm numbers first rise then later fall as an industry evolves this nonmonotonicity is explained using a competitive model in which innovation opportunities fuel entry and relative failure to innovate prompts exit equilibrium time paths for price and quantity also share features of the data the model is estimated using data from the u s automobile tire industry a particularly dramatic example of the nonmonotonicity in firm numbers

the impact of conditional cash transfers on consumption and investment in nicaragua abstract this article examines the impact of a nicaraguan conditional cash transfer programme on measures of expenditures and productive investment despite clear evidence from a randomised evaluation that the programme increased current expenditures there is little evidence that it increased agricultural or non agricultural investment an estimated marginal propensity to consume out of the transfers of nearly one combined with no effect of cumulative past transfers on current consumption corroborate the direct evidence on investment in contrast to gains made in human capital investment the potential for long term increases in consumption as a result of other forms of increased investment may be limited

market research and innovation strategy in a duopoly we model a duopoly in which ex ante identical firms must decide where to direct their innovation efforts the firms face market uncertainty about consumers preferences for innovation on two product attributes and technology uncertainty about the success of their research and development r d investments firms can conduct costly market research before setting r d strategy we find that the value of market information to a firm depends on whether its rival is expected to obtain this information in equilibrium consequently one firm may forgo market research even though its rival conducts such research and learns the true state of demand we examine both vertical and horizontal demand structures with vertical preferences firms are a priori uncertain about which attribute all consumers will value more in this case a firm that conducts market research always attempts innovation on the attribute it discovers that consumers prefer and expends more on r d than a rival that has not conducted market research with horizontal preferences distinct segments exist each caring about innovation on only one attribute and firms are a priori uncertain how many consumers each segment contains in this case a firm that conducts market research may follow a niche strategy and attempt innovation to serve the smaller segment to avoid intense price competition for the larger segment a firm that conducts market research may therefore invest less in r d and earn lower postlaunch profits than a rival that has forgone such research

uncertainty spillovers and cooperative r d abstract this paper extends the literature on cooperative r d in an oligopoly with spillovers the model has three new features it introduces uncertainty focuses on spillover of innovation instead of effort spillover and offers a new definition of the research joint venture rjv the rjv is an arrangement to coordinate r d efforts and also to share the innovation firms form an rjv only if the innovation raises flow industry profit but independently of the speed of spillovers and the degree of uncertainty the model is robust when we allow for licensing the single lab endogenous spillovers and r d effort spillovers

getting competition down to a science the effects of technological competition on firms scientific publications prior research about the interaction between private firms and the scientific community has largely viewed firms articles in scientific publications as a means to improve research and development productivity by encouraging their researchers to publish scientific papers firms can maintain linkages with the scientific community attract talent and access external knowledge on which they can build to create innovations this paper in contrast emphasizes the role of scientific publications in firms battles for market dominance and examines how competitive conditions shape firms propensities to publish scientific articles about their innovations focusing on the context of pharmaceutical drugs we develop propositions about how the competition that one drug faces from similar drugs and potential substitutes influences the innovating firm s inclination to publish articles in the top medical journals about that drug to facilitate its assessment by the u s food and drug administration and the medical community we also propose that scientific articles about competing drugs compel a firm to highlight its own drug in scientific papers to assert the drug s uniqueness and mitigate the threat of substitution whereas prior research has elucidated how science contributes to enhancing firms competence at creating innovations which is critical to their ability to compete in technology intensive environments this paper draws attention to how competition in turn permeates into the scientific arena creating inducements for firms to use scientific publications to position their innovations in the marketplace