Social Class in Public Schools

This article shows the pattern of socioeconomic class differences in schooling outcomes and indicates some of the causes for those differences that lie within the public realm. Those causes include "nested inequalities" across boundaries of states, school districts, schools within a district, classes within a school, and sometimes separation within a class. In addition, urban public schools demonstrate a particular set of problems that generate differential schooling outcomes by economic class. The article also demonstrates ways in which class biases are closely entwined with racial and ethnic inequities. It concludes with the broad outlines of what would be necessary to reduce class (and racial) disparities in American public schools .

The American dream will succeed or fail in the 21 ^st century in direct proportion to our commitment to educate every person in the United States of America.
            —President Bill Clinton, 1995 ( Clinton, 1995 : 617)

There is no greater test of our national responsibility than the quality of the education we provide.
      —Democratic presidential candidate Al Gore, 2000 ( Gore, 2000 )

Both parties have been talking about education for quite a while. It's time to come together to get it done, so that we can truthfully say in America: No child will be left behind.
                —President George W. Bush, 2001 ( Bush, 2001 )

     

Knowledge representation by schemata in financial expert systems

This paper introduces the notion of knowledge structuring by schemata. A schema is a chunk of knowledge which generalizes the idea of functional dependence between pertinent concepts (objects). The rules are closely related to the schemata. Moreover the schemata are organized in a hierarchical network which takes into account the relative importance of the concepts. Examples are given in the financial field and the consequences with regards to knowledge engineering are discussed.     

Some quantitative concepts of value and utility from a utilitarian point of view

This paper clarifies and interprets some basic quantitative concepts of value, utility and utility function from a utilitarian point of view. First, I discuss the question as to whether value is objective or subjective. I hold that value is subjective and statistical in nature (although from the various subjective values of a certain object a norm can usually be obtained). Second, I emphasize the distinction between use value and exchange value in relation to utility. Third, I propose a law of diminishing incremental interest, which refers to the incremental (marginal) utility of money. Fourth, I identify the utility of money with the von Neumann-Morgenstern utility. Fifth, I question the necessity of the usual normalization of utility functions and the restricted linear transformation (and the consequent concept of strategic equivalence). Sixth, I discuss in detail the terminal values and utilities of a utility function from a philosophical rather than mathematical point of view, particularly the boundedness of a utility function and the magnitudes of V ₀ and U ₀. Finally, I conclude that, in order to be able to have interpersonal comparisons of utility, utility should have the same dimension as value rather than no dimension, and the normalization problem should be reconsidered in the light of terminal values and utilities.     

Natural and artificial computing and reasoning in economic affairs

During a century or so, good reasoning in economic affairs was reduced to the search of computable algorithms for Expected Utility Optimization: but is the “Principle of least Action”, which was so powerful for guiding the researches in Physics and Natural Sciences as relevant as expected for guiding the good use of “reason in human affairs”? The discussion of the theoretical and practical weaknesses of the Paradigm of Expected Utility Optimization proposed since forty years notably by H. A. Simon, leads to the formulation of another paradigm, probably more relevant for the guidance of researches in economics and management affairs: “the Principle of Intelligent Action”, focus on the property of symbols computation systems. The general framework of Plausible Rationality, as established by G. Polya permits the formulation of programmable heuristics (or production rules) which can be expressed in terms of artificial symbolic computations. A more General Research Program is now open to research in Economic Reasoning by the developments of Artificial Intelligence and Cognitive Sciences: the design of relevant economic heuristics guiding the Decision Making Processes.     

How Many Old People Use Community Services? A Review of Survey Findings

Several surveys of the aged have been conducted in Australia in recent years. They give rise to questions about the usefulness of their findings, particularly in determining the extent to which the aged use community services and in planning future services. This paper reviews the methods and findings of five of these surveys carried out between 1981 and 1986. It looks at the way questions were constructed, the time reference used, the populations and samples, problems of non-response and of definition. Explanations for the variability in reported service use are addressed. Finally, issues relating to the interpretation and application of survey findings are raised and discussed.