The article describes a number of operational and methodological contributions in the search for geographically localized knowledge spillovers. The unique focus is on the role of individual inventors, and to examine, at this fundamental level of innovative activity, the impact of geographic distance, time, and political boundaries on transfers of knowledge. The analyses exploit patent citations...

The DNS root nameservers routinely use anycast in order to improve their service to clients and increase their resilience against various types of failures. We study DNS traffic collected over a two-day period in January 2006 at anycast instances for the C, F and K root nameservers. We analyze how anycast DNS service affects the worldwide population of Internet users. To determine whether clien...

Overview: From an initial small core of 4 people who could identify, treat, track and monitor heart failure patients for the hospital (including home assessment visits for high risk patient population) there grew a desire to utilize the hospital infrastructure to further develop pathways and protocols to better care for heart failure patients. Contributing factors included:  Cost ineffectivene...

Unveiling the processes that determine the spatial distribution of species is a central goal for community ecology and biogeography. Hubbell (1997, 2001) suggested that the dispersal history of biological assemblages, rather than habitat specialization, provides the main explanation for spatial variation. Neutral theory predicts that among-site floristic similarity (beta-diversity or commonalit...

We introduce a novel knowledge-based recommendation algorithm for leisure time information to be used in social networks, which enhances the state-of-the-art in this algorithm category by taking into account (a) qualitative aspects of the recommended places (restaurants, museums, tourist attractions etc.), such as price, service and atmosphere, (b) influencing factors between social network use...

-Distribution of software development is becoming more and more common in order to save the production cost and reduce the time to market. Large geographical distance, different time zones and cultural differences in distributed software development (DSD) leads to weak communication which adversely affects the project. Using agile practices for distributed development is also gaining momentum i...

Recent theoretical work suggests that firm heterogeneity has an impact on the international investment decisions of multinational firms. This paper provides evidence foreign direct investment (FDI) at different levels of aggregation. We use a novel firm-level dataset on the FDI stocks of German firms to assess level and role of heterogeneity. Our data cover the years 1990-2000. We provide evide...

Despite substantial improvements in the last few years in software engineering and collaboration tools, coordination in large-scale software development continues to be problematic. This coordination is important because of the complex interdependencies that exist among software tasks, in that small productivity improvements can lead to substantial cost-savings and competitiveness. Traditional ...

Increased globalization and the consequent dispersion of IT activities around the world have driven the growth of offshore outsourcing. The share of offshore software development (OSD) in the high-cost countries has grown tremendously since the 1990s and this trend will continue in the coming years. Software development projects continue to experience poor performance problems because of their ...

We investigate the antecedents of conflict on collocated as compared with geographically distributed teams. In our field study of 16 collocated and 20 geographically distributed research and development teams, we found little evidence that distributed teams have more conflict. However, we did find that distributed teams experienced more coordination problems and less healthy conflict handling n...