A financial planning model for presidential candidates

The necessity of entering a sequence of interrelated state primaries has forced presidential candidates to be much more deliberate in planning campaign finances. This paper presents a linear programming model for optimal allocation of time and money to each primary in order to maximize the number of delegates won. The model attempts to quantify and exploit the relationships between performance in early primaries and performance in later primaries, which has heretofore been labeled the “snowball effect.” Finally, the model, whose major use would be in overall strategic planning, is illustrated with an example.     

A systems approach to the management of a hospital for short-term patients.

The endemic problems of health system management are reviewed, as is the difficulty of taking a systems viewpoint. It is argued, and demonstrated, that, by using some very simple ideas of system structure it is remarkably easy to draw up a diagram of system influences. Such a diagram is drawn for the case of psychiatric patients who recycle in the system. The diagram is analyzed from the point of view of its properties as a feedback control system, and it is shown that there are alternative, and probably more satisfactory, management practices. Suggestions are made for the practical implementation of such policies. Finally it is argued that influence diagrams may be useful as agenda for discussions, and that they offer advantages over conventional agenda.     

Legalization of drugs: Effects on the workplace

In the last few years bipartisan support for legalizing drugs has grown to a surprising level. Because of the lack of involvement of the business community in this debate, we surveyed the human resource managers of 127 firms about their perceptions of the effects of legalization. Their responses were uniformly negative, with expectations that drug use, absenteeism, worksite crime, and liability costs would increase, while the quality and quantity of work would decline. They also forecast increases in drug testing, performance monitoring, and education and rehabilitation programs as a result.     

On tests concerning coefficient matrices of linear restriction with normal regression models

Summary As an application of tests of general linear hypotheses methods are presented for testing the equality of coefficient matrices of linear restrictions with normal univariate and multivariate regression models. Geometrical interpretations of the results are given. The present paper generalizes some of the earlier results obtained byTocher, andBennett.     

Ein Index zur numerischen Bestimmung der Niveau-Eigenschaft eines psychologischen Tests

Zusammenfassung Es wird ein Index definiert, der den Grad, in dem ein Intelligenz- oder Leistungstest die Eigenschaften und Bedingungen eines ideal-typischen Niveau-Tests erfüllt, kennzeichnet. Der Index variiert in den Grenzen von 0 bis 1, wobei der Wert 0 einem idealtypischen Schnelligkeitstest (Speed-Test) und der Wert 1 einem idealtypischen Niveau-Test entspricht. Dieser Index kann aufgrund einer einmaligen Testdurchführung bestimmt werden; er ist abh?ngig von der Zeitbegrenzung des Testes und vom Leistungsniveau der untersuchten Stichprobe. Es wird vorgeschlagen, einen Test mitw> > 0,7 als Niveautest, einen solchen mitw<0,3 als Schnelligkeitstest zu bewerten. Die Berechnung vonw wird an Hand bekannter Tests demonstriert und einige Anwendungsbeschr?nkungen er?rtert.

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Summary An index (w) for determining a test as to its degree of being a speed or a power test is proposed varying like a coefficient of correlation from zero to one. This index may be derived from a single testing a posteriori. It is dependent on the given time limit and on the achievement level of the sample tested. From empirical evidence it is suggested to accept a test with an indexw>0,7 as a power test and a test withw<0,3 as a speed test. Numerical examples for calculatingw are given and some restrictions for its application are discussed.

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Herrn Prof. H. Münzner (Berlin) danken die Verfasser für die Durchsicht des Manuskriptes und für seine wertvollen Anregungen.     

Monopsonistically/monopolistically competitive regional development: Public correction of market outcomes

A model of regional market development is constructed which captures the inefficiencies typical in most of the related literature, and a variety of corrective policy options are explored. For taxes and subsidies, there is no dominant policy with each limited by the zero-profit constraint on entry, informational problems, or adverse distributional considerations. Discriminatory pricing decreases efficiency, but uniform pricing achieves optimal allocations. Public production has certain informational advantages.