Importance of interpolation when constructing double-bootstrap confidence intervals

We show that, in the context of double-bootstrap confidence intervals, linear interpolation at the second level of the double bootstrap can reduce the simulation error component of coverage error by an order of magnitude. Intervals that are indistinguishable in terms of coverage error with theoretical, infinite simulation, double-bootstrap confidence intervals may be obtained at substantially less computational expense than by using the standard Monte Carlo approximation method. The intervals retain the simplicity of uniform bootstrap sampling and require no special analysis or computational techniques. Interpolation at the first level of the double bootstrap is shown to have a relatively minor effect on the simulation error.     

Human capital and agency effects on CEO compensation of IPO biopharmaceutical firms and the market’s response

This paper examines the determinants of base pay and total incentive compensation packages of CEOs of biopharmaceutical firms that have recently gone public, and whether human capital and agency factors affect the market’s response to the initial public offering. We find that in terms of net proceeds, the IPO market appears to reward the firms that have founder-CEOs and CEOs with higher incentive compensation. CEOs with prior venture capital experience are associated with receiving higher incentive compensation, while CEOs with a greater ownership interest in the firm receive lower incentive compensation but higher salaries. CEOs of firms with a greater percentage of insiders are associated with lower salaries. The results should add to our understanding related to human capital and agency theories, as well as help firms and investors better understand and structure CEO compensation.     

Evaluating Potential Distribution of High‐Risk Aquatic Invasive Species in the Water Garden and Aquarium Trade at a Global Scale Based on Current Established Populations

Aquatic non‐native invasive species are commonly traded in the worldwide water garden and aquarium markets, and some of these species pose major threats to the economy, the environment, and human health. Understanding the potential suitable habitat for these species at a global scale and at regional scales can inform risk assessments and predict future potential establishment. Typically, global habitat suitability models are fit for freshwater species with only climate variables, which provides little information about suitable terrestrial conditions for aquatic species. Remotely sensed data including topography and land cover data have the potential to improve our understanding of suitable habitat for aquatic species. In this study, we fit species distribution models using five different model algorithms for three non‐native aquatic invasive species with bioclimatic, topographic, and remotely sensed covariates to evaluate potential suitable habitat beyond simple climate matches. The species examined included a frog (Xenopus laevis), toad (Bombina orientalis), and snail (Pomacea spp.). Using a unique modeling approach for each species including background point selection based on known established populations resulted in robust ensemble habitat suitability models. All models for all species had test area under the receiver operating characteristic curve values greater than 0.70 and percent correctly classified values greater than 0.65. Importantly, we employed multivariate environmental similarity surface maps to evaluate potential extrapolation beyond observed conditions when applying models globally. These global models provide necessary forecasts of where these aquatic invasive species have the potential for establishment outside their native range, a key component in risk analyses.     

Energizing the ordinary: Biographical work and the future in stroke recovery narratives

Historically, the life course has been constructed as an organized and linear temporal progression. This holds true in various disciplines from education, to psychology, to counseling. The foundation of a life unfolding through temporal categorizations is documented in textbooks and theories that straddle these disciplines as well as many others, including the sociology of health and illness, which has often conceptualized the illness experience as embedded in a recovery trajectory.Here, we take this to task. Using Gubrium and Holstein's [Sociol. Inq. 65 (1995) 207; Gubrium, J., & Holstein, J., (1997). The new language of qualitative method. New York: Oxford University Press] analytic vocabulary of biographical work, we analyze narratives of stroke survivors by emphasizing the ordinary resources used as discursive foundations for the narrative production of the future in illness. Ordinary resources focused on include God and spirituality, comorbidities, and activity and leisure. The discussion is embedded in overarching concerns with “healthy aging” in gerontology and geriatrics.     

An extension of the classical A B C inventory control system

The conventional method of controlling inventories of relatively fast moving items in a store is based on an A B C classification of the stock items. An analysis is presented for the extension of this method to determine the number of categories that should be employed and the way in which the different items should be allocated to these categories. A case study is briefly described to illustrate the application of this methodology.     

The Intentions of Parents in Influencing the Career Development of Their Children

Parents' intentions associated with critical incidents they undertake in the career development of their children are examined from an intentional action perspective. From interviews with 207 parents, 1,772 critical incidents were identified. Approximately half of the incidents contributed to the construction of 10 categories representing the intentions of parents; the remainder was used to substantiate the categories. The categories illustrate that parents, although not necessarily attempting to influence particular occupational choice, are active agents in influencing their children in a broad range of areas in career development.     

Some criteria for making decisions concerning the distribution of scarce medical resources

In this paper I proceed on the assumption that moral philosophers can and should contribute to the resolution of perplexing moral problems. The ones considered here relate to decisions concerning the distribution of scarce medical resources as between those in need of treatment. I draw on considerations of egalitarianism and concern for the maximization of the use of scarce resources in the task of satisfying basic human needs (such as for good health). I propose certain principles and offer some supporting suggestions as guidelines or rules for medical decisions with a view to providing a helpful decision procedure for the various persons (doctors, community panels and so on) whose task it is to make the life-or-death decisions involved in allocating certain scarce medical resources.