R&D, innovation, and technological progress: a test of the Schumpeterian framework without scale effects

Abstract.  I use U.S. manufacturing industry data to estimate a system of three equations implied by a model of R&D‐induced growth in steady state. These equations relate R&D intensity to patenting, patenting to technological progress, and technological progress to economic growth. In each case, I find evidence of positive impact. Thus, I reject the null hypothesis that growth is not induced by R&D in favour of the Schumpeterian endogenous growth framework without scale effects. I also find strong support for technological spillovers from aggregate research intensity to industry‐level innovation success. JEL Classification: O40, O30     

Firms navigating through innovation spaces: a conceptualization of how firms search and perceive technological,market and productive opportunities globally

The main contribution of this paper is a theory-based conceptual framework of innovation spaces, and how firms must navigate through them to innovate. The concept of innovation systems - at the regional, sectoral and national levels - have been highly influential. Previous literature developing the concept of innovation systems has stressed the importance of institutions, networks and knowledge bases at the regional, sectoral and national levels. This paper primarily draws upon an evolutionary and Schumpeterian economics perspective, in the following three senses. The conceptualization of 'innnovation spaces' focuses upon how and why firm search for innovations is influenced the opportunities within certain geographical contexts. This means that the firm create opportunities and can span different context, but they are influence by the context in term of the access, flow and co-evolution of ideas, resources, technology, people and knowledge, which help stimulate business innovation in terms of products, process and services. The paper concludes with an agenda for future research and especially the need to focus on globalization as a process of intensifying linkages across the globe.     

On a family of data-based transformed models useful in forecasting technological substitutions

This paper examines, via real data, some well known models for technology substitution analysis. We propose a family of data-based transformed models that will include the models under examination as special cases. The basic thrust of the paper is the recognition that for technology substitution analysis, the observations are time series data and hence are not independent. Also, the functional form of the model should be determined by both theoretical considerations as well as the data on hand. This suggests that the traditional ordinary least squares procedure used in estimating the parameters and the resulting forecasting procedures are not adequate. The existing models examined here are Fisher–Pry, Gompertz, Weibull, and Normal. We stress the statistical aspects of the models and their relative merits in terms of predictive power. The criteria used for the purpose of comparison are the mean squared deviation and the mean absolute deviation of the predicted values compared with the actual observations.     

Continuity and change: Mapping the community of economists in Greece (1944 to 1967)

Abstract

This paper combines quantitative, biographical and qualitative data to trace out the structure and dynamics of Greece's post-war community of economists, and explore its implications for the country's economic discourse. Greek economics was a state-centred profession whose fate was intertwined with that of the post-war developmental state apparatus. Most economists were employed in universities, the civil service or banking, with substantial interpenetration between branches. This configuration of professional constituencies, in conjunction with the structural features of each institution, conditioned the form and content of economic discourse. Professional and ideological cohesion went hand in hand, whilst substantial degrees of vertical and horizontal control by senior members further fostered consensus and increased professional sclerosis. Nevertheless, evidence from a new database of economic journal publications suggests that a substantial realignment took place in the late 1950s and 1960s, as a younger generation of scholars – most of them educated in the post-war UK/US, and affiliated with the newly established Centre for Planning and Economic Research – entered the scene.     

The dynamic of innovation networks: a switching model on technological change

In this paper, we introduce an agent-based model where heterogeneous firms compare and modify their innovation strategies, so generating an evolving network structure. By implementing dynamic behavioral switching via a fitness mechanism based on agents’ performance, companies can endogenously modify their tactics for technological change and switch among three groups: stand-alone innovators, collaborative innovators and imitators. On the one hand, we study the properties of the emerging networks and we show that they reproduce the stylized facts of innovation networks. Moreover, we focus the analysis on the impact of these three innovation categories on the macro economic aggregate, finding that collaborative companies are those having the highest positive impact on the economic system. On the other hand, we use the model to study the effect of different economic innovation policies in increasing macroeconomic performance.     

Functions of innovation systems as a framework to understand sustainable technological change: Empirical evidence for earlier claims

Understanding the emergence of innovation systems is recently put central in research analysing the process of technological change. Especially the key activities that are important for the build up of an innovation system receive much attention. These are labelled ‘functions of innovation systems’. This paper builds on five empirical studies, related to renewable energy technologies, to test whether the functions of innovation systems framework is a valid framework to analyse processes of technological change. We test the claim that a specific set of functions is suitable. We also test the claim made in previous publications that the interactions between system functions accelerate innovation system emergence and growth. Both claims are confirmed.     

How to measure innovation? New evidence of the technology–growth linkage

It is an undoubtful fact that economic growth depends, ultima ratio, on the production of new ideas. This article aims to contribute to the long-standing debate on the choice of the best proxy to measure innovation and technological diffusion, by offering alternative variables which are tested empirically by means of a panel dataset of 73 countries between 1980 and 2005. Two different proxies of technological progress (patents and a Intellectual Property Rights Index) are used to explain different growth rates of income per capita and, after controlling for endogeneity, our results suggest that both have a positive effect on innovation (and economic growth).     

In search of a test of investor capital gain realization behavior to capital gain tax rates

Existing empirical work on the effects of taxation on the realization of capital gains does not closely conform to recent theoretical work on the same question. Methodology is proposed to provide weak tests of the theory.     

How not to measure sustainable value (and how one might)

Sustainability is a complex multidimensional concept that entails economic, environmental, and social aspects. The sustainable value (SV) method developed by F. Figge and T. Hahn [Ecol. Econ. 48(2004) 173-187] is one of the most promising attempts to measure sustainability performance of firms. SV measures corporate contributions to sustainability by valuing resource use based on the opportunity cost, which must be estimated. This paper critically examines Figge and Hahn's estimator for opportunity cost, and shows that the proposed estimator rests on a number of strong, unrealistic assumptions. Evidence from Monte Carlo simulations conducted by authors shows that the proposed estimator performs very poorly even under ideal conditions. Having identified shortcomings in the SV method, we review some econometric approaches with a proven statistical foundation, which might be usefully applied in the present context.     

后发企业技术创新的演化动力机制研究-以华为早期(1988-1995年)研发为例

以演化经济学和系统动力学视角,综合运用文献分析和访谈等研究方法,对华为早期技术研发进行系统性分析,建立后发企业技术创新及其演化的系统动力模型。研究发现：新产品开发是资本增长的动力,技术创新是产品开发的动力,人才和研发组织是技术创新的动力,同时人才也是组织结构优化的动力,而发挥人才价值的关键是人才激励;市场既为后发企业提供不断进化的市场动力,也传递先发企业和后发企业的竞争压力,促使后发企业不断产品开发和集成创新,供应商为后发企业快速进入市场并对关键技术进行模块化创新提供动力;企业家和研发组织把外部动力和压力转化为内部动力,使内部动力及进化选择机制与外部市场竞争协调一致。     

Cumulative causation in the formation of a technological innovation system: The case of biofuels in the Netherlands

Despite its worldwide success, the innovation systems approach is often criticised for being theoretically underdeveloped. This paper aims to contribute to the conceptual and methodological basis of the (technological) innovation systems approach. We propose an alteration that improves the analysis of dynamics, especially with respect to emerging innovation systems. We do this by expanding on the technological innovation systems and system functions literature, and by employing the method of ‘event history analysis’. By mapping events, the interactions between system functions and their development over time can be analysed. Based on this it becomes possible to identify forms of positive feedback, i.e. cumulative causation. As an illustration of the approach, we assess the biofuels innovation system in The Netherlands as it evolved from 1990 to 2007.     

In Pursuit of a Monster: Militarisation and (In)Security in Northern Uganda

Through a feminist geopolitical analysis, this article interrogates the role of monster narratives in producing geographic imaginaries of difference and lived experiences of insecurity in northern Uganda. Building upon theories of monsters as cultural imaginaries, I argue that state and non-state actors evoke colonial-era constructions of difference to construct Joseph Kony, leader of the Lord's Resistance Army (LRA), as a monster to support contemporary geopolitical agendas. By troubling state-based definitions of security, this article disputes the idea that security practices predicated on the defeat of a monster translate into increased security for those most directly affected by the violence of the monster. Additionally, this article discusses alternative narratives circulating in northern Uganda that offer different readings of Kony's role in the cycles of violence that have ravaged the region. These narratives, when viewed through a feminist geopolitical lens, challenge the monster imaginary and, with it, the geopolitics of militarisation.     

A day without a search engine: an experimental study of online and offline searches

With the evolution of the Web and development of web-based search engines, online searching has become a common method for obtaining information. Given this popularity, the question arises as to how much time people save by using search engines for their information needs compared to offline sources, as well as how online searching affects both search experiences and search outcomes. Using a random sample of queries from a major search engine and a sample of reference questions from the Internet Public Library (IPL), we conduct a real-effort experiment to compare online and offline search experiences and outcomes. We find that participants are significantly more likely to find an answer on the Web (100 %), compared to offline searching (between 87 % and 90 %). Restricting our analysis to the set of questions in which participants find answers in both treatments, a Web search takes on average 7 (9) minutes, whereas the corresponding offline search takes 22 (19) minutes for a search-engine (IPL) question. Furthermore, while raters judge library sources to be significantly more trustworthy and authoritative than the corresponding Web sources, they judge Web sources as significantly more relevant. Balancing all factors, we find that the overall source quality is not significantly different between the two treatments for the set of search-engine questions. However, for IPL questions, we find that non-Web sources are judged to have significantly higher overall quality than the corresponding Web sources. In comparison, for factual questions, Web search results are significantly more likely to be correct (66 % vs. 43 %). Lastly, post-search questionnaires reveal that participants find online searching more enjoyable than offline searching.     

The automobile road to technological change : Diffusion of the automobile as a process of technological substitution

Advancement of the motor vehicle and its production methods is analyzed as a process of technological change. In a broader context, motor vehicles evolved as an integral component of road transportation through a series of interlaced substitutions of old by new technologies. Building on a large number of studies that described technological substitution processes, first it is shown how new energy forms replaced their predecessors and how the old marine-transport technologies were substituted by new ones. These examples constitute some of the oldest, empirically documented technological changes and show that many events in the dynamics of energy substitution and marine transport are related to technological changes in road transportation. It is shown that these substitution processes can be described by simple rules and that the replacement of old by new technologies in the energy and transport systems lasted about 80 years. The technological changes within road transportation, however, were more rapid. Replacement of horses by automobiles and older by newer generations of motor vehicles and production methods lasted only a few decades in the United States. Thus, technological substitutions within the road-transportation system were considerably shorter than the expansion of railroads, surfaced roads, all road vehicles together, and the more recent expansion of air transportation.