The problem of nding the minimum topology of multipro-cessing substrates supporting parallel execution of any given neighbourhood constrained system is proposed and possible optimal strategies are investigated based on the relationship between Barbosa's scheduling by edge reversal-SER-distributed algorithm and the minimum clique covering problem. It is shown that from any given clique covering ...

The second author’s ω, ∆, χ conjecture proposes that every graph satisties χ ≤ d 1 2 (∆ + 1 + ω)e. In this paper we prove that the conjecture holds for all claw-free graphs. Our approach uses the structure theorem of Chudnovsky and Seymour. Along the way we discuss a stronger local conjecture, and prove that it holds for claw-free graphs with a three-colourable complement. To prove our results ...

This paper analyzes the effects of government debt and income taxes on consumption and saving in a world of infinitely lived households having uncertain and heterogeneous incomes. The special structure of the model allows exact aggregation across households despite incomplete markets. The effects of government debt are shown to be substantial, roughly comparable to those resulting from finite h...

BACKGROUND Assessing the impact of cost sharing on healthcare utilization is a critical issue in health economics and health policy. It may affect the utilization of different services, but is yet to be well understood. OBJECTIVE This paper investigates the effects of reducing cost sharing for outpatient services on hospital admissions by exploring a subsidy policy for children's outpatient s...

Background: The fair wage to specialist physicians and nurses can enhance their job motivation, quality of work, job satisfaction level, and improve the delivery of services to patients. The present study aimed to compare the proportion of changes in earnings of specialist physicians and nurses before and after implementing the Iran’s New Tariffs Book and compare their average income with...

This paper describes how players infer other players’ inference in the game of Schredelseker [7]. Schredelseker did a series of laboratory experiments and simulations of his zero-sum game played by players who are informed to different degrees, reporting that modestly informed players often suffered from greater losses than no-informed ones did. This paper formulates each player’s profit rigoro...

We estimate the effect that six types of high school math courses have on students’ earnings nearly a decade after graduation. We use High School and Beyond transcript data to differentiate courses at a more detailed level than in previous research. This enables us to show that more-advanced courses have larger effects than less-advanced ones. We also provide evidence that math courses can help...

national, even international, financial crises. The introduction of a co-payment system would simply maximise inequity, burdening especially those who already pay as a proportion of their income, themost for their health care, often for the management of chronic conditions. Raising co-payments in proportion with people’s income (in three or more levels) could be a sensible choice, but there is ...

This paper combines “emerging twin peaks” distribution dynamics for percapita incomes across countries, with personal income distributions within countries over time. The result is a picture of worldwide income distribution dynamics across people. The paper finds that for determining world inequalities, the forces assuming first-order importance are those macroeconomic ones that determine cross...