Expectations in Micro Data: Rationality Revisited

An increasing number of longitudinal data sets collect expectations information regarding a variety of future individual level events and decisions, providing researchers with the opportunity to explore expectations over micro variables in detail. We provide a theoretical framework and an econometric methodology to use that type of information to test the Rational Expectations hypothesis in models of individual behavior, and present tests using two different panel data sets.

National Trends Reflected in Changing Ohio Swine Industry

ESO-2344 marked "ESO-2234" on title page.A long term decline in comparative importance of Ohio farm income from livestock compared to crops is part of larger regional and national changes in both the location and organization of livestock production. These developments appear to suggest continuing declines in the comparative importance of animal agriculture (compared to crops) in Ohio, Yet the Northeast census region contains 20 percent of the meat consuming (but non-producing) U.S. population, a market that states like North Carolina hasten to supply. Does this market potential justify collective efforts in Ohio to reverse long term industry trends

A Handbook of Operations for Use in the ESL

This handbook contains 50 operations for use in the ESL classroom. An operation describes a process or procedure for doing something, such as opening a bank accountant or using a cassette recorder. The meaning of the language is made clear by the action, and the action reinforces the language. Operations are especially useful for teaching and practicing verb tenses, although they can also be used when working with stress and intonation patterns, vocabulary building, locative phrases, cultural information, and skill development. Operations are activity-oriented, and because the students are physically responding to words, the language has concrete meaning. The handbook should be used as a supplement to regular classroom activities

Annual Survey of Virginia Law: Taxation

This article covers legislative changes and judicial decisions affecting Virginia taxation from July, 1991 to July, 1992. Its purpose is to alert Virginia\u27s tax and general practitioners to these developments

The effect of moving on union dissolution

This paper examines the effect of migration and residential mobility on union dissolution among married and cohabiting couples. While there is a large, multi-disciplinary literature looking at the determinants of union dissolution in Europe and North America, the possible impact of geographical mobility has received little attention. This is despite the fact that moving is a stressful life event and that numerous studies suggest that women’s economic well-being and employment suffer from family moves which are usually stimulated by the man’s career. We base our longitudinal analysis on retrospective event-history data from Austria and apply hazard regression. Our results show that couples who move frequently have a significantly higher risk of union dissolution. We argue that frequent moving increases couple stress and union instability through a variety of mechanisms.Austria, dissolution of marriage, event history analysis, internal migration, residential mobility

Physically-based sampling for motion planning

Motion planning is a fundamental problem with applications in a wide variety of areas including robotics, computer graphics, animation, virtual prototyping, medical simulations, industrial simulations, and trac planning. Despite being an active area of research for nearly four decades, prior motion planning algorithms are unable to provide adequate solutions that satisfy the constraints that arise in these applications. We present a novel approach based on physics-based sampling for motion planning that can compute collision-free paths while also satisfying many physical constraints. Our planning algorithms use constrained simulation to generate samples which are biased in the direction of the nal goal positions of the agent or agents. The underlying simulation core implicitly incorporates kinematics and dynamics of the robot or agent as constraints or as part of the motion model itself. Thus, the resulting motion is smooth and physically-plausible for both single robot and multi-robot planning. We apply our approach to planning of deformable soft-body agents via the use of graphics hardware accelerated interference queries. We highlight the approach with a case study on pre-operative planning for liver chemoembolization. Next, we apply it to the case of highly articulated serial chains. Through dynamic dimensionality reduction and optimized collision response, we can successfully plan the motion of \\snake-like robots in a practical amount of time despite the high number of degrees of freedom in the problem. Finally, we show the use of the approach for a large number of bodies in dynamic environments. By applying our approach to both global and local interactions between agents, we can successfully plan for thousands of simple robots in real-world scenarios. We demonstrate their application to large crowd simulations

Collaborative systems for enhancing the analysis of social surveys: the grid enabled specialist data environments

This paper describes a group of online services which are designed to support social survey research and the production of statistical results. The 'Grid Enabled Specialist Data Environment' (GESDE) services constitute three related systems which offer facilities to search for, extract and exploit supplementary data and metadata concerned with the measurement and operationalisation of survey variables. The services also offer users the opportunity to deposit and distribute their own supplementary data resources for the benefit of dissemination and replication of the details of their own analysis. The GESDE services focus upon three application areas: specialist data relating to the measurement of occupations; educational qualifications; and ethnicity (including nationality, language, religion, national identity). They identify information resources related to the operationalisation of variables which seek to measure each of these concepts - examples include coding frames, crosswalk and translation files, and standardisation and harmonisation recommendations. These resources constitute important supplementary data which can be usefully exploited in the analysis of survey data. The GESDE services work by collecting together as much of this supplementary data as possible, and making it searchable and retrievable to others. This paper discusses the current features of the GESDE services (which have been designed as part of a wider programme of ‘e-Science’ research in the UK), and considers ongoing challenges in providing effective support for variable-oriented statistical analysis in the social sciences

Understanding the Impact of Technology: Learner and School Level Factors

The first part of this report focuses on the factors impacting on learner performance in national tests at primary and secondary level. This was the central research question of this research. The second section focuses on teacher and learner perceptions of their own responses to learning and the learning environment. This was centred on, but not confined to, their school. The institutional structures record the level of development of the schools sampled here and investigate the use of two key technologies – interactive whiteboards and learning platform

Finally, a way to relieve cancer-related fatigue

A 4-week course of American ginseng, taken while patients are undergoing radiation or chemotherapy, can reduce cancer-related fatigue. PRACTICE CHANGER: Recommend American ginseng 1000 mg twice daily for 4 weeks to improve cancer-related fatigue for patients who are under-going radiation or chemotherapy; no other treatment has been shown to be effective

Assessing Firm Behavior in Carve-out Markets: Evidence on the Impact of Carve-out Policy

Airlines wanting to cooperatively set prices for their international air travel service must apply to the relevant authorities for antitrust immunity (ATI). While cooperation may yield benefits, it can also have anti-competitive effects in markets where partners competed prior to receiving ATI. A carve-out policy forbids ATI partners from cooperating in markets policymakers believe will be most harmed by anti-competitive effects. We examine carve-out policy applications to three ATI partner pairings, and find evidence more consistent with cooperative pricing in carve-out markets in spite of the policy, calling into question the effectiveness of the policy in achieving intended market outcomes