Two to Tangle: Financial Development, Political Instability and Economic Growth in Argentina (1896–2000)

This paper investigates the effects of financial development and political instability on economic growth in a power-ARCH framework with data for Argentina from 1896 to 2000. Our findings suggest that (i) informal or unanticipated political instability (e.g., guerrilla warfare) has a direct negative impact on growth; (ii) formal or anticipated instability (e.g., cabinet changes) has an indirect (through volatility) impact on growth; (iii) the effect of financial development is positive and, surprisingly, not via volatility; (iv) the informal instability effects are much larger in the short- than in the long-run; and (v) the impact of financial development on economic growth is negative in the short- but positive in the long-run.economic growth, financial development, volatility, political instability, power-ARCH

In-House Globalization: The Role of Globally Distributed Design and Product Architecture on Product Development Performance

Changes in the global economy and technological advances are stimulating an increasing geographic distribution of new product design and development efforts. For large organizations that design and develop complex products, this geographic distribution has added a new layer of complexity to product development operations. In this empirical study of a large auto manufacturer, we examine the operational performance implications of splitting the design of vehicle subsystems across multiple geographic locations. Our results indicate that global distribution diminishes the chance of completing tasks on time and degrades subsystem design quality. Finally, by examining the interplay between subsystem centrality and global distribution, we found that higher centrality in the product architecture amplifies the impact of global distribution on subsystem error rates.http://deepblue.lib.umich.edu/bitstream/2027.42/85793/1/1163_Hopp.pd

Web-enabled boundary spanners and their role in the knowledge flow network

We argue that types of Simmelian-tied employee dyads (dyads embedded in three-person cliques) influences organizational justice perceptions, and knowledge sharing within and across organizational boundaries through virtual workgroups. We study the interaction between employees\u27 advice and friendship ties, shared interpersonal, interactional, procedural and distributive justice perceptions, and the types of knowledge shared from a social network perspective. We predict that Simmelian-tied advice and friendship dyads influence justice perceptions, and in turn knowledge sharing. Compared to Simmelian-tied advice dyads, we suggest that Simmelian-tied friendship dyads were hypothesized to be strongly associated with congruent distributive, interpersonal, and interpersonal justice perceptions. Congruent procedural justice perceptions were likely to be associated with both Simmelian-tied advice and friendship ties. We hypothesized that distributive, procedural, and informational justice perceptions were likely to be shared across formal organizational boundaries through strong friendship ties. We also predicted that positive congruent procedural, interpersonal and informational justice perceptions influenced expert knowledge sharing while congruent distributive justice perceptions influenced product knowledge sharing

Evaluation of Psychoacoustic Sound Parameters for Sonification

Sonification designers have little theory or experimental evidence to guide the design of data-to-sound mappings. Many mappings use acoustic representations of data values which do not correspond with the listener's perception of how that data value should sound during sonification. This research evaluates data-to-sound mappings that are based on psychoacoustic sensations, in an attempt to move towards using data-to-sound mappings that are aligned with the listener's perception of the data value's auditory connotations. Multiple psychoacoustic parameters were evaluated over two experiments, which were designed in the context of a domain-specific problem - detecting the level of focus of an astronomical image through auditory display. Recommendations for designing sonification systems with psychoacoustic sound parameters are presented based on our results

The impact of firms’ social media initiatives on operational efficiency and innovativeness

Social media have been increasingly adopted for organizational purposes but their operational implications are not well understood. Firms’ social media initiatives might facilitate information flow and knowledge sharing within and across organizations, strengthening firm‐customer interaction, and improving internal and external collaboration. In this research we empirically examine the impact of social media initiatives on firms’ operational efficiency and innovativeness. Taking the resource‐based view of firms’ information capability, we consider firms’ social media initiatives as strategic resources for operational improvement. We posit that firms’ social media initiatives enhance dynamic knowledge‐sharing routines through an information‐rich social network, leading to both operational efficiency and innovativeness. Collecting secondary data in a longitudinal setting from multiple sources, we construct dynamic panel data (DPD) models. Based on system generalized method of moments (GMM) estimation, we show that firms’ social media initiatives improve operational efficiency and innovativeness. We identify the importance of an information‐rich social network to the creation of knowledge‐based advantage through firms’ social media initiatives, and discuss the theoretical and managerial implications from the perspective of operations management