Decision support for disaster management

Disaster response and recovery are crucial phases of disaster management. Decision-support systems used in disaster management must cope with the complexity and uncertainty involved with the scheduling and assignment of differentially-skilled personnel and assets to specific tasks. Operational constraints—such as workload and labor requirements, precedence constraints, resource availability, and critical deadlines among others—make timely and appropriate task assignment and sequencing difficult. Failure to assign personnel in an efficient and effective manner may result in unnecessary fatalities and significant additional loss of property as well as damaging the reputation of the disaster management organizations. Therefore, this paper proposes a decision-support system for disaster response and recovery using hybrid meta-heuristics.     

输美产品应循供应链安全新规

美国市场经济比较成熟,政府对企业的经营范围与经营方式很少限制,但对各行业产品进出口、批发、零售均有极为详尽的法规与执照要求,而且执法十分严厉。如美国对于产品责任的规定,使得外国制造商任何不慎的举动均可能导致巨额损失。     

Are Production Decisions Decoupled under a Bond Scheme? Experimental Evidence

Experimental economics procedures were used to investigate impacts of a proposed bond scheme on production decisions. As expected, production with subsidy payments tied to a support price was substantially higher than with no policy. A shift from the support price to equivalent annual or lump-sum payments not tied to price resulted in production at or near no-policy levels, providing empirical evidence to support the theoretical prediction that bond schemes would not result in production distortions. Potential extensions to the basic model used in this study also are presented.     

Ownership relations in the presence of cross-shareholding

The direct ownership structure in a sector can be readily obtained from data on shareholding. Due to cross-shareholding, however, the true ownership structure may be hidden by a complex network of indirect relations. In studying the property structure, two important aspects are the size of the relations between primary owners (e.g. individuals) and secondary owners (e.g. companies), and the distance between them. The distance is obtained from the average number of secondary owners via whom the relation runs. As an empirical application, we study the banking sector in the Czech Republic, where also the relation between distance and separation of dividend and control rights is discussed.      

Regulation,innovation and public welfare: the example of the food industry

The complex relationship between innovation and regulation in the food industry is analyzed with a view to identifying the ways in which regulation both promotes and inhibits particular kinds of innovation, and also the relevance of both innovation and regulation to the protection and improvement of public health. The effects of regulation on innovation are complex, since regulation simultaneously inhibits some kinds of development while encouraging others, but those which are inhibited are typically unsafe or undesirale. There is, however, no evidence that public welfare is being undermined by excessive regulations or by too few innovations in the food sector.     

Infrastructures and Societal Change. A View from the Large Technical Systems Field

Infrastructural and societal changes intertwine in multiple ways. This makes the societal implications of infrastructural projects difficult to assess and anticipate. Yet in present day network societies this task is particularly urgent. This paper first identifies two positions that tend to monopolize and deadlock debates. Next it examines two decades of research in the Large Technical System (LTS) research field for alternative approaches to this issue, before finally suggesting distinguishing between the four increasingly indirect moments of (co-) construction of infrastructures and societies. These may be related causally, but also add their own moments of contingency, agency, and choice.     

Does quality influence choice of general practitioner? An analysis of matched doctor–patient panel data

The impact of quality on the demand facing health care providers has important implications for the industrial organization of health care markets. In this paper we study the consumers' choice of general practitioner (GP), assuming they are unable to observe the true quality of GP services. A panel data set for 484 Norwegian GPs, with summary information on their patient stocks, renders the opportunity to identify and measure the impact of GP quality on the demand, accounting for patient health heterogeneity. We apply a multi-equation model in the LISREL format, with GP quality and patient health as latent determinants of demand for GP services. Patient excess mortality rate at the GP level is one indicator of quality. Our results indicate that GP quality has a clear positive effect on demand, even when patient heterogeneity is accounted for.     

Why are firms unlevered?

In this paper, we examine why firms have no debt in their capital structure. We reject the hypothesis that zero-leverage policies are driven by entrenched managers attempting to avoid the disciplinary pressures of debt. These firms do not have weaker internal or external governance mechanisms. The debt initiation decisions of these firms are not preceded by shocks to their entrenchment, such as takeover threats or the emergence of activist blockholders. Our evidence supports the hypothesis that these firms are financially constrained. Zero-debt firms are small, young, conserve cash from cash-flow, and are more likely to lease their assets. When they have access to a line of credit, they face stricter covenants and higher all-in costs than comparable control firms. They lose market share in economic downturns, consistent with the financial constraints explanation, but inconsistent with theories of predation which suggest that they may be voluntarily stockpiling debt capacity.     

Success Factors for Service Innovation: A Meta‐Analysis

Service sectors form a considerable part of the world economy. Contrary to the logical assumption that service innovation research should represent a significant share of all innovation research, the vast majority of innovation studies focus on products as opposed to services. This research presents a meta‐analysis of the antecedents of service innovation performance conducted on 92 independent samples obtained from 114 articles published between 1989 and 2015. This research contributes to our understanding of service innovation in three major ways. First, this is the first meta‐analysis that specifically assesses the relative importance of antecedents of service innovation performance, while also pinpointing the differences in meta‐analytic findings between antecedents of service and product innovation performance. Although there are some universal success factors that transcend the boundaries between services and products, the presence of marked differences implies that it would be wrong to treat the development of new services and new products as the same. Second, the meta‐analysis demonstrates that the antecedents of service innovation performance are contingent on the sector context (i.e., explicit versus tacit services). Comparing results between products and services, and between tacit and explicit services, there appears to be a continuum where explicit services sit interstitial between tacit services on one side and products on the other. Third, the meta‐analysis compares and contrasts the antecedents of two dimensions of service innovation performance (i.e., commercial success and strategic competitive advantage). Previous meta‐analyses treated these two dependent variables collectively, which falls short of identifying issues that may affect management decisions when faced with different objectives. Additionally, this research investigates the effect of several other moderators (i.e., culture, unit of analysis, journal quality, and year of publication) on the relationships between the antecedents and service innovation performance. The results are discussed in relation to their implications for research and managerial practice.