An Analysis of the Interest Elasticity of Financial Asset Holdings by Income

A Keynesian money demand model is used to examine the interest elasticity of financial asset holdings by income level. In this model, once an individual receives income, they first make transactions, and any leftover income goes for speculative purposes. Since only speculative balances are assumed to change with interest rates, individuals with income used mainly for transactions purposes are theorized to have asset holdings that are unresponsive to interest rates, while higher income individuals with speculative balances are expected to be more responsive to interest rates. The results support the Keynesian model, as lower income households are found to have the smallest interest elasticity, and the estimated elasticity rises with income

Archaeological Investigations at 41AN115

41AN115 is located in the northwestern part of Anderson County, Texas, on a western terrace of Town Creek approximately nine miles from the Trinity River. It is a multi-component prehistoric occupation, and the artifacts found here indicate it has been used from Late Paleoindian to Woodland period times. The late Paleoindian occupation is represented by Dalton and San Patrice dart points; the Archaic occupations are marked by Bell, Bulverde, and Yarbrough dart points; while the Woodland period occupation includes Gary points and sandy paste pottery. The site was used intermittently over thousands of years as a hunting camp and later as a seasonal campsite. The tool kit included flake knives, gravers, spokeshaves, punches, and scrapers, along with many ground stone tools. The lithic materials chosen for tool use are a combination of local and non-local material with cherts, fine-grained quartzite, ferruginous sandstone, and petrified wood. One Late Archaic occupational features has been found at the site

Can Savings Help Overcome Income Instability?

Analyzes the extent of instability in monthly income among low-income families, the risk of facing material hardship due to income volatility, and whether modest liquid assets offers protection from such hardship. Considers policy implications

Long range inhabited surface transportation system power source for the exploration of Mars (manned Mars mission)

A hydrogen-oxygen fuel cell system is identified as a viable power source for a long range inhabited surface transportation system for the exploration of Mars. Power system weights and power requirements are determined as a function of vehicle weight. For vehicles weighing from 2700 to 7300 kg in LEO, the total power system weight ranges from 1140 to 1860 kg, with the reactants and energy conversion hardware (fuel cells, reactant storage, and radiator) weighing 430 to 555 kg and 610 to 1110 kg, respectively. Vehicle power requirements range from 45 kW for a 2700 kg vehicle to 110 kW for a 7300 kg vehicle. Power system specific weights and power profiles for housekeeping and the operation of scientific equipment such as coring drills and power tools are also specified

Psychosocial factors and work related sickness absence among permanent and non-permanent employees

Study objective: To examine the association between psychosocial work factors and work related sickness absence among permanent and non-permanent employees by sex.Design: A cross sectional survey conducted in 2000 of a representative sample of the European Union total active population, aged 15 years and older. The independent variables were psychological job demands and job control as measures of psychosocial work environment, and work related sickness absence as the main outcome. Poisson regression models were used to compute sickness absence days' rate ratios.Setting: 15 countries of the European Union.Participants: A sample of permanent (n=12875) and non-permanent (n=1203) workers from the Third European Survey on Working Conditions.Results: High psychological job demands, low job control, and high strain and passive work were associated with higher work related sickness absence. The risks were more pronounced in non-permanent compared with permanent employees and men compared with women.Conclusions: This work extends previous research on employment contracts and sickness absence, suggesting different effects depending on psychosocial working conditions and sex

ALCOA #1 (41AN87): A Frankston Phase Settlement along Mound Prairie Creek, Anderson County, Texas

The ALCOA #1 (41AN87) site is a Frankston Phase (ca. A.D. 1400-1650) site located on a high alluvial terrace of Mound Prairie Creek, about seven kilometers northeast of Palestine, Texas. Mound Prairie Creek, a perennial stream, flows southeast to east across the county and drains into the Neches River. The site is approximately 10 meters above the Mound Prairie Creek floodplain, and the creek channel is 300 meters to the south. Although the investigations at the site have been rather limited to date, it appears that the ALCOA #1 site is a single component Frankston Phase homestead, or possibly a small hamlet. Other Frankston phase sites are known on Mound Prairie Creek, Hurricane Creek, Walnut Creek, and Brushy Creek, all Neches River tributaries, and the possibility exists that these may be part of a larger related Caddo community and settlement system

Progress and Problems in the Rehabilitation of Patients with Central Nervous System Injuries

Let us briefly consider the general nature of contemporary rehabilitation with highlights of its progress and problems. Paraplegia and hemiparesis may be thought of as the models of neurologic impairment

Gravity solitary waves with polynomial decay to exponentially small ripples at infinity

International audienceIn this paper, we study the travelling gravity waves of velocity c in a system of two layers of perfect fluids, the bottom one being infinitely deep, the upper one having a finite thickness h. We assume that the flow is potential, and the dimensionless parameters are the ratio between densities ρ = ρ2/ρ1 and λ=gh/c^2. For ε = 1 − λ(1 − ρ) near 0 + , the existence of periodic travelling waves of arbitrary small amplitude and the existence of generalized solitary waves with ripples at infinity of size larger than ε^{ 5/2 } and polynomial decay rate were established in [7]. In this paper we improve this former result by showing the existence of generalized solitary waves with exponentially small ripples at infinity (of order O(e^{ − c/ε})). We conjecture the non existence of true solitary waves in this case. The proof is based on a spatial dynamical formulation of the problem combined with a study of the analytic continuation of the solutions in the complex field which enables one to obtain exponentially small upper bounds of the oscillatory integrals giving the size of the oscillations at infinity

The Productivity Consequences of Two Ergonomic Interventions

Pre- and post-intervention data on health outcomes, absenteeism, and productivity from a longitudinal, quasi-experimental design field study of office workers was used to evaluate the economic consequences of two ergonomic interventions. Researchers assigned individuals in the study to three groups: a group that received an ergonomically designed chair and office ergonomics training; a group that received office ergonomics training only; and a control group. The results show that while training alone has neither a statistically significant effect on health nor productivity, the chair-with-training intervention substantially reduced pain and improved productivity. Neither intervention affected sick leave hours.ergonomics, chair, pain, DeRango, Upjohn

Determinants of health and education in Latin America

Abstract. This paper discusses the determinants of health and education in Latin America, a region which we define as consisting of the following twenty countries: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Suriname, Uruguay, and Venezuela.  Health and education are integral factors to the productive capability and overall well-being of individuals. Therefore the factors that contribute to health and education lay the foundation for long-term economic growth that is distributed equitably throughout every socioeconomic stratum.   There are a myriad of factors that contribute to the levels of health and the quality of education experienced by individuals living in Latin America; the determinants of health will be organized such that they fall into economic, social and historical, environmental, and biological categories, while the determinants of education will be broken down into student-side, school-level, and system-wide or macro variables.   Using a panel of the twenty Latin American countries previously listed, this paper will discuss possible influences of health and education status as well as the nature of that influence; the paper will then proceed to discern between statistically significant and statistically insignificant factors.  The paper will conclude with a discussion of possible statistical flaws that could result in biased conclusions.Keywords. Health, Education, Latin America, HIV, Panel data.JEL. I15, I25, C33