Measurements of Rare B Decays at BABAR

We present the results of searches for rare B meson decays. The measurements use all or part of a data sample of about 88 million $\Upsilon(4S)\to B{\bar B}$ decays collected between 1999 and 2002 with the \babar detector at the PEP-II asymmetric energy B Factory at the Stanford Linear Accelerator Center. We study a variety of decays dominated by electromagnetic, electroweak and gluonic penguin transitions, and report measurements of branching fractions and other quantities of interest.Comment: Invited talk at the 2002 SLAC Summer Institute Topical Conference (SSI02-TTh06); 28 pages, 16 figures; Correct minor typographical errors and include central results (where available) for analyses which report upper limit

Rethinking International Compensation: From Expatriate and National Cultures to Strategic Flexibility

[Excerpt] We are on the verge of a worldwide restructuring of compensation and reward systems. Even long established, seemingly carved-in-granite cultural norms, such as lifetime employment in Japan and industry-wide bargaining in Germany, are weakening in response to the pressures of a global economy. So also are our previously hard-and-fast assumptions about international compensation -- the idea that pay systems should keep expatriates “economically whole” and the notion that local compensation should be tailored to fit national cultures

A Risk-Return Paradox: Risk, Performance-Based Pay and Performance

[Excerpt] In recent years, strategy researchers have examined the relationship between business risk and performance. The logic underlying this relationship is that organizations facing greater business risk seek to offset it with the prospect of higher financial returns. The research typically involves various financial measures of organization performance regressed on measures of risk. Surprisingly, the findings are contradictory. While some studies report evidence supporting a positive relationship between the risk organizations face and their performance (Aaker & Jacobson, 1987; Fiegenbaum & Thomas, 1988), others reported an inverse relationship (Bowman, 1982, 1984). These different results called into question the basic premise about the form of the risk-return relationship and left a void in understanding why organization decision makers might pursue more risky strategies. Advancing this line of inquiry, Miller and Bromiley (1990) noted that business risk, like financial performance, is multi-dimensional. Several dimensions of business risk emerged from their work including income stream and strategic or financial risk. They suggested that differences reported in the risk-return relationship resulted from different operationalizations of business risk

Issues in Managerial Compensation Research

[Excerpt] Compensation is at the core of any employment exchange (Milkovich & Newman, 1993; Simon, 1951). It is probably the most basic reason people agree to become employees and it serves as a defining characteristic of any employment relationship (March & Simon, 1958). Recently, managers have been bombarded with a profusion of ways to pay employees. There is team-based pay, broad-banding, pay at risk, paying for competencies, paying for skills, and even The New pay. Understanding which of these have the potential to add value and which are relatively more effective is a tough task, like untying the Gordian knot. Rather than simply cutting through the problem (Alexander the Great\u27s tack), managers often seek guidance from research. Yet, researchers have also been bombarded - not just with new practices, but also with new theories. Included in this theoretic barrage is agency theory, tournament models, contingency theory, institutional theory, procedural justice, political influence theory, organizational demography, resource dependency, psychological contracts, and the resource-based view of the firm. The list seems almost endless. If Lord Keynes is correct that theories drive practical peoples\u27 decisions, understanding which of these theories is useful and which is not is important for both compensation researchers and practical decision makers

The Relationship Between Risk, Performance-Based Pay, and Organizational Performance

In this study, we argue that much of the recent agency-based research on performance based pay virtually omits the role of risk. This compensation research has predominantly taken the positive perspective and focused on the incentive properties of performance-based pay, thereby overlooking the important role that risk plays in normative formulations of agency theory (Holmstrom, 1979; Eisenhardt, 1989; Jensen & Meckling; 1976). Building on previous research, such as Beatty and Zajac (1994), we re-introduce risk by investigating its effects on the formation and outcomes of performance-based pay contracts. Specifically, our study examines both the main effects of risk on the structure of compensation contracts and the joint effects of risk and performance-based pay on firm performance. This study is based on data of incumbent managers from 356 companies over the period 1981 to 1988. Financial performance and market data were drawn from the CRSP and COMPUSTAT

The Relationship Between Risk, Incentive Pay, and Organizational Performance

In this study we extend agency based research by examining the role of risk in the structure of managerial compensation and its relationship to organization performance. Our results suggest that organizations facing higher risk do not place greater emphasis on short term incentives, they place less emphasis on it. Also, higher risk firms which rely on incentive pay exhibited poorer performance than high risk firms which de-emphasize incentive pay

On a Proper Meta-Analytic Model for Correlations

Combining statistical information across studies is a standard research tool in applied psychology. The most common approach in applied psychology is the fixed effects model. The fixed-effects approach assumes that individual study characteristics such as treatment conditions, study context, or individual differences do not influence study effect sizes. That is, that the majority of the differences between the effect sizes of different studies can be explained by sampling error alone. We critique the fixed-effects methodology for correlations and propose an advancement, the random-effects model, that ameliorates problems imposed by fixed-effects models. The random-effects approach explicitly incorporates between-study differences in data analysis and provides estimates of how those study characteristics influence the relationships among constructs of interest. Because they can model the influence of study characteristics, we assert that random-effects models have advantages for psychological research. Parameter estimates of both models are compared and evidence in favor of the random-effects approach is presented

Wing surface-jet interaction characteristics of an upper-surface blown model with rectangular exhaust nozzles and a radius flap

The wing surface jet interaction characteristics of an upper surface blown transport configuration were investigated in the Langley V/STOL tunnel. Velocity profiles at the inboard engine center line were measured for several chordwise locations, and chordwise pressure distributions on the flap were obtained. The model represented a four engine arrangement having relatively high aspect ratio rectangular spread, exhaust nozzles and a simple trailing edge radius flap

Relational semantics of linear logic and higher-order model-checking

In this article, we develop a new and somewhat unexpected connection between higher-order model-checking and linear logic. Our starting point is the observation that once embedded in the relational semantics of linear logic, the Church encoding of any higher-order recursion scheme (HORS) comes together with a dual Church encoding of an alternating tree automata (ATA) of the same signature. Moreover, the interaction between the relational interpretations of the HORS and of the ATA identifies the set of accepting states of the tree automaton against the infinite tree generated by the recursion scheme. We show how to extend this result to alternating parity automata (APT) by introducing a parametric version of the exponential modality of linear logic, capturing the formal properties of colors (or priorities) in higher-order model-checking. We show in particular how to reunderstand in this way the type-theoretic approach to higher-order model-checking developed by Kobayashi and Ong. We briefly explain in the end of the paper how his analysis driven by linear logic results in a new and purely semantic proof of decidability of the formulas of the monadic second-order logic for higher-order recursion schemes.Comment: 24 pages. Submitte