This research studied homophily of network ties in distributed teams in both taskrelated instrumental networks and non-task related expressive networks. Homophily of network ties was examined in terms of demographic and social characteristics, including gender, race, geographic location, and group assignment. Social network data were collected from 32 students enrolled in a distance learning cl...

Article history: Received 16 November 2010 Accepted 9 April 2013 Available online 20 April 2013 This paper assesses conflicts of interest between banks and their client firms via the merger transaction by examining the wealth gain of merger acquirers who were listed on the Tokyo Stock Exchange in 1990–2004. The paper reports two main findings. First, acquiring firms did not gain from their acqu...

The main objective of this paper is to show that the notion of type which was developed within the frames of logic and model theory has deep ties with geometric properties of algebras. These ties go back and forth from universal algebraic geometry to the model theory through the machinery of algebraic logic. We show that types appear naturally as logical kernels in the Galois correspondence bet...

We propose a new dataset for evaluating a Japanese lexical simplification method. Previous datasets have several deficiencies. All of them substitute only a single target word, and some of them extract sentences only from newswire corpus. In addition, most of these datasets do not allow ties and integrate simplification ranking from all the annotators without considering the quality. In contras...

Prior network-based research on open source software (OSS) development has focused on the benefit of network ties and assumed all network ties play the same role. We adopt a fine-grained view of network relations to investigate the impact of network ties on the success of OSS development. Through examining the development of OSS projects hosted by SourceForge, we find that co-membership among p...

While most advocate that foreign firms should utilize managerial ties to conduct business in China, recent literature cautions that such ties may offer only conditional value. This study examines three sources of heterogeneity that may condition the value of ties: firm ownership (foreign vs. domestic), competition, and structural uncertainty. Results from a survey of 280 firms in China indicate...