PROXYING FOR UNOBSERVABLE VARIABLES WITH INTERNET DOCUMENT‐FREQUENCY

The internet contains billions of documents. We show that document frequencies in large decentralized textual databases can capture the cross‐sectional variation in the occurrence frequencies of social phenomena. We characterize the econometric conditions under which such proxying is likely. We also propose using recently‐introduced internet search volume indexes as proxies for fundamental locational traits, and discuss their advantages and limitations. We then successfully proxy for a number of economic and demographic variables in US cities and states. We further obtain document‐frequency measures of corruption by country and US state and replicate the econometric results of previous research studying its covariates. Finally, we provide the first measure of corruption in American cities. Poverty, population size, service‐sector orientation, and ethnic fragmentation are shown to predict higher levels of corruption in urban America.     

Reciprocity and uncertainty: When do people forgive?

A sizable proportion of individuals act reciprocally. They punish and reward depending on the (un)kindness of those with whom they interact. In this paper, I explore whether individuals still reciprocate intentions when others lack full control over the consequences of their actions. By means of a dictator game with punishment opportunities, I show that unkind intentions are enough to trigger punishments, irrespectively of the outcome. By contrast, accidents are forgiven. To isolate how uncertainty over the result of an action affects the assessment of intentions, I control for other possible departures from self-profit maximization, such as distributional concerns or efficiency maximization. I find that the former also plays a role in respondents’ behavior.     

Creating competencies through collaboration:: The case of EUREKA R&D consortia

This article discusses the originality of European EUREKA consortia. Formed at the initiative of member firms, these consortia generally adopt a decentralised structure. Their main purpose is to conduct applied research, with the ultimate goal of exploiting its commercial opportunities. The consortia strive to ensure collaboration among firms in different countries, and at times, from different industries. Examining the management of R&D consortia, this article focuses primarily on the creation of new knowledge and competencies and on the benefits that member firms can reap from collaboration. Based on 20 interviews with project managers, the article brings to light two main observations: (1) the leader's positioning is a determining factor, and (2) a perfect balance between the firm's technological development and the consortium's strategic orientation facilitates the acquisition of competencies.     

基于DDS和FPGA的多功能信号发生器设计

根据直接数字频率合成技术,以FPGA为核心,设计了一种便携式多功能信号发生器,可产生正弦波、方波、三角波、锯齿波等信号。通过仿真及硬件实验表明,该信号发生器具有信号频率误差小、分辨率高、体积小、质量轻等优点。     

中间品贸易视角下的国际研发合作行为研究

随着全球化程度加深,与国外企业进行研发合作逐步成为国内企业参与创新驱动发展战略的重要途径.从中间品贸易视角出发,通过构建谈判博弈模型,分析探讨影响产业链下游企业进行国际研发合作内生性选择的因素.研究发现,只有在研发溢出效应比较小的时候,产业链下游企业才会选择进行国际研发合作.但如果研发溢出效应过小,下游企业的国际研发合作行为会导致本国社会福利水平下降.进一步研究发现,上游市场垄断势力增强以及最终品贸易成本下降均会对产业链下游企业的国际研发合作产生促进作用.     

The role of deliberate and experiential learning in developing capabilities: Insights from technology licensing

We discuss the interdependencies between deliberate and experiential learning in developing a dynamic technology licensing capability, which was termed ‘desorptive capacity’ in earlier conceptual work. We use new three-year lagged data from two surveys of 79 firms to examine the role of dedicated licensing employees and prior licensing experience in developing firms’ sensing, seizing, and transforming capacities in technology out-licensing. The findings emphasize capabilities’ multidimensionality and critical trade-offs due to interdependencies between deliberate and experiential learning in developing capabilities. Besides interdependencies with experiential learning, deliberate learning strengthens sensing and seizing capacity, but it negatively affects transforming capacity based on inertia.     

Non‐linear Effects of Comparison Income in Quit Decisions: Status versus Signal!

This research note utilizes German matched employer–employee data to investigate the relationship between mobility and relative wage positions within establishments for workers without university degrees. The main innovation involves the examination of non‐linear effects, because previous literature mainly analyses mean linear effects. Our random‐effects probit estimates of mobility suggest a non‐linear U‐shaped effect with respect to relative standing. This is plausible because workers in low relative wage positions might quit because of their low status and those in high relative wage positions because of their low career advancement opportunities. Consideration of non‐linearities, thus, is a major improvement for the analysis of the effects of relative wage positions.     

COMPETITION AND RELATIONAL CONTRACTS: THE ROLE OF UNEMPLOYMENT AS A DISCIPLINARY DEVICE

Abstract When workers are faced with the threat of unemployment, their relationship with a particular firm becomes valuable. As a result, a worker may comply with the terms of a relational contract that demands high effort even when performance is not enforceable by a third party. But can relational contracts motivate high effort when workers can easily find alternative jobs? We examine how competition for labor affects the emergence of relational contracts and their effectiveness in overcoming moral hazard in the labor market. We show that effective relational contracts do emerge in a market with excess demand for labor. Long‐term relationships turn out to be less frequent when there is excess demand for labor than they are in a market characterized by exogenous unemployment. However, stronger competition for labor does not impair labor market efficiency: higher wages induced by competition lead to higher effort out of concerns for reciprocity.