Characterizing complexity in socio-technical systems: a case study of a SAMU Medical Regulation Center

Complexity theory has been adopted by a number of studies as a benchmark to investigate the performance of socio-technical systems, especially those that are characterized by relevant cognitive work. However, there is little guidance on how to assess, systematically, the extent to which a system is complex. The main objective of this study is to carry out a systematic analysis of a SAMU (Mobile Emergency Medical Service) Medical Regulation Center in Brazil, based on the core characteristics of complex systems presented by previous studies. The assessment was based on direct observations and nine interviews: three of them with regulator of emergencies medical doctor, three with radio operators and three with telephone attendants. The results indicated that, to a great extent, the core characteristics of complexity are magnified) due to basic shortcomings in the design of the work system. Thus, some recommendations are put forward with a view to reducing unnecessary complexity that hinders the performance of the socio-technical system.     

Joint modeling of degradation and failure time data

This paper surveys some approaches to model the relationship between failure time data and covariate data like internal degradation and external environmental processes. These models which reflect the dependency between system state and system reliability include threshold models and hazard-based models. In particular, we consider the class of degradation–threshold–shock models (DTS models) in which failure is due to the competing causes of degradation and trauma. For this class of reliability models we express the failure time in terms of degradation and covariates. We compute the survival function of the resulting failure time and derive the likelihood function for the joint observation of failure times and degradation data at discrete times. We consider a special class of DTS models where degradation is modeled by a process with stationary independent increments and related to external covariates through a random time scale and extend this model class to repairable items by a marked point process approach. The proposed model class provides a rich conceptual framework for the study of degradation–failure issues.     

Bridge over Troubled Waters. Die EZB,die Euro-Rettung und die Politisierung der Geldpolitik

On the one hand, the European Central Bank’s (ECB) crisis management has revealed the structural deficits of the monetary union. On the other hand, neither the governments nor the citizens of the Eurozone member states are willing to legalize the ECB’s necessary but extraordinary monetary policies for future scenarios. The paper identifies the unresolved institutional contraction between French and German monetary traditions as one of the main factors underlying this functional as much as legitimatory dilemma.     

When and with whom to cooperate? Investigating effects of cooperation stage and type on innovation capabilities and success

In times of saturated markets and decreasing product life cycles, the continuous development and successful launch of innovations are essential for profit-oriented organizations of any kind. Interorganizational cooperation enables companies to get better access to knowledge and capabilities in order to generate and successfully introduce innovations. While scientific research and management practice have acknowledged the importance of cooperation, little research effort is dedicated to empirically determine the effectiveness of cooperation intensity within different stages of the innovation process (cooperation stage) and with different partners (cooperation type). This article aims to fill these gaps by empirically examining the effects of cooperation intensity with different kinds of partners (horizontal, vertical and institutional cooperation) in different stages of new product development (concept and product development as well as implementation stage) on innovation capabilities and success of individual companies. Drawing upon a sample of 154 high-tech companies from the German B-2-B sector, our results reveal that it is in general beneficial for a company to cooperate. However, cooperation in concept and product development primarily improves a company's innovation capabilities while cooperation in the implementation stage primarily enhances innovation success of a company. With respect to cooperation type, vertical, horizontal as well as institutional cooperation significantly enhance innovation capabilities and success of a company. However, cooperation with institutional partners was found to be the most important contributor throughout all stages.     

Daring to Marry: Marriage Equality Activism After Proposition 8 as Challenge to the Assimilationist/Radical Binary in Queer Studies

I analyze three case studies of marriage equality activism and marriage equality–based groups after the passage of Proposition 8 in California. Evaluating the JoinTheImpact protests of 2008, the LGBTQ rights group GetEQUAL, and the group One Struggle One Fight, I argue that these groups revise queer theoretical arguments about marriage equality activism as by definition assimilationist, homonormative, and single-issue. In contrast to such claims, the cases studied here provide a snapshot of heterogeneous, intersectional, and coalition-based social justice work in which creative methods of protest, including direct action and flash mobs, are deployed in militant ways for marriage rights and beyond.     

INFORMATION TRANSMISSION AND OWNERSHIP CONSOLIDATION IN AID PROGRAMS

We investigate the degree of leeway donors of foreign aid should grant to recipient governments when their preferences over how to implement the aid are different, and both the donor and recipient possess some private information about the most effective policies. Intuitively, our model shows that donors should stay in control of how their aid is spent when their own private information is more important than the private information of the recipient. Less obviously, an increase in the difference of preferences between donors and recipients can increase rather than decrease the leeway that donors should grant the recipients, as the recipients' information gains in importance relative to those of the donors, and recipients become less likely to communicate truthfully. We test the model using dyadic data for 28 bilateral aid donors and 112 recipients, over the 1995–2010 period. Our proxy for “centralized” aid is project aid, while budget aid leaves more leeway to the recipient and thus proxies for “decentralized” aid. In line with the model, misaligned interests and informational asymmetries indeed influence the shares of aid given as budget and project aid. (JEL C23, D82, F33,O1)     

Dimensions of Risk Perception for Financial and Health Risks

This study of 29 MBA students compares two models of risk perception for both financial and health risk stimuli. The first, inspired by Luce and Weber's Conjoint Expected Risk (CER) model, uses five dimensions: probability of gain, loss and status quo, and expected benefit and harm. The second, inspired by the Sovic et al. psychometric model, employs seven dimensions: voluntariness, dread, control, knowledge, catastrophic potential, novelty, and equity. The CER-type model provided a better fit for most subjects and stimuli. Adding the psychological risk dimensions from the Slovic et al. model explained only modestly more variance. Relationships between the dimensions of the two models are described and the construction of a hybrid model explored.     

When teams of employees spin-off partnerships: matching-technology, information structure, and the “pure” incubator effect

The successful foundation of entrepreneurial firms comprises a multitude of complementary human tasks. The effect of founders’ human capital on firm success hinges on the information structure that prevails when nascent entrepreneurs are matched in partnerships. Empirically, we assume that rational matching occurs in incubated spin-offs and corporate-sponsored ventures. The human capital structure in such firms significantly differs from that of Greenfield projects. Using coarsened exact matching (CEM), we compute weights to level out these differences in human capital endowments. The impact of corporate support in founding the new firm is positive and increases as CEM-weights are applied to more of our human capital variables.