Rubicon Biotechnology (United States)

The standard multivariate test of Gibbons et al. (1989) used in studies examining relative performance of alternative asset pricing models requires the number of stocks to be less than the number of time-series observations, which requires stocks to be grouped into portfolios. This results in a loss of disaggregate stock information. We apply a new statistical test to get around this problem. We find that the multivariate average F-test developed by Hwang and Satchell (2014) has superior power to discriminate among competing models and does not reject tested models altogether, unlike the standard multivariate test. Application of the multivariate average F-test for examination of relative performance of asset pricing models demonstrate that a parsimonious 6-factor model with the market, size, orthogonal value, profitability, investment, and momentum factors outperforms all other models.

This article examines the drivers of American support for environmental projects in the multilateral development banks (MDBs). We first describe how U.S. Executive Directors are guided by Congressional directives regarding environmental aspects of MDB projects. The article then turns to statistical analysis of the strategic and normative drivers of U.S. positions on MDB projects. Our analysis finds mixed support for environmental factors driving U.S. votes. The United States is more inclined to vote against “dirty” projects (i.e., mining, coal, and oil) rather than specifically support “green” projects (i.e., projects related toward climate change or biodiversity). The overall environmental performance of a country had a minor influence on whether the United States would support proposals from that country, but the United States was much more likely to disapprove of a project if a project failed to undergo an environmental analysis or failed the analysis in anyway.

<div class="htmlview paragraph">The versatility of polyurethane RIM systems is shown to offer the capability of meeting the requirements of many new automotive applications. The effects of the isocyanate component composition on the physical properties of polyurethane RIM systems are reported. Results and interpretations are presented which give guidance to automotive design engineers in tailoring RIM material properties to match parts design and cost criteria. Several liquefied MDI products used in RIM systems are described and their influence on performance in automotive formulations is compared.</div>

CONVENIENT FORMULAS for current and voltage in the detector branch of a resistance bridge are shown in Figures 1 to 3. These formulas are particularly useful for determining either the exact sensitivity of the balanced bridge or the approximate output of the unbalanced bridge where the unbalance is, in general, not greater than the order of 10 per cent. In either case, the user is assumed to be referring to and working from the balanced-bridge condition. The proportional error of the output approximation, based on the exact output value, does not exceed the proportional unbalance of the bridge (for example, no more than a 1-per-cent error results if the bridge is out of balance by 1 per cent). It does not matter whether the values of V, I, C, T, S, and D are taken from the balanced or from the unbalanced bridge, although it is more convenient to take them from the former. The formulas in Figure 3 are of course not new, being merely representations of Thevenin's Theorem, but they nonetheless belong in this group to complete the logical assembly of formulas.