WHEN FLEXIBLE FORMS ARE ASKED TO FLEX TOO MUCH

Taylor series-based flexible forms cannot be interpreted as Taylor series approximations unless all data used in estimation lie in a region of convergence. When flexible forms lose their Taylor series interpretation, elasticity estimates will be biased. When the flexible form is a translog, Rotterdam, or AIDS model, the region of convergence is shown to be the entire positive orthant. Regions of convergence associated with quadratic, Leontief, and any flexible form that does not employ logged arguments are smaller and may not encompass the entire data set. Implications for production and demand analyses and experimental design are discussed.Research Methods/ Statistical Methods,

Development of the dry tape battery concept Quarterly report no. 4, 9 Mar. - 9 Jun. 1966

Aqueous and nonqueous electrolytic actions, and energy density measurements for dry tape batter

A CLASS OF SEPARABILITY FLEXIBLE FUNCTIONAL FORMS

Quadratic flexible forms, such as the translog and generalized Leontief, are separability inflexible. That is, separability restrictions render them inflexible with regard to separable structures. A class functional forms is proposed that is flexible with regard to general production structures and remains flexible regarding weakly separable structures when separability restrictions are imposed, thus permitting tests of the separability hypothesis. Additionally, the restricted forms are parsimonious; that is they contain the minimum number of parameters with which flexibility can be achieved.Research Methods/ Statistical Methods,

Development of the dry tape battery concept Quarterly report no. 3, 9 Dec. 1965 - 8 Mar. 1966

Material electrical and chemical properties tested for use in dry tape batterie

The Effects of Heel Disks, Heel Bars and Conical Cleats on the Speed and Cutting Ability of University of North Dakota Football Players

The problem of this study was to measure the effects of three different types of heel structures on the agility and cutting ability of University of North Dakota football players. The three types of heel structures used were regular conical cleats, heel disks and heel bars. The test used in the study was the Dodging Test from Frederick V. Cozens\u27 General Athletic Ability Test for College Men. It consists of running and dodging or cutting in and out among five hurdles placed at strategic points on five 3-toot lanes. The subjects tested were the total population of the University of North Dakota football team during the spring of 19&9* These athletes served as their own control. Their test performance while wearing one of the three types of heel structures was the variable in the study. A null hypothesis, that there is no difference in agility or cutting ability of UND football players while wearing any of the three specific types of heel structures, was tested and accepted at the .01 confidence level by use of a one-way analysis of variance. The study results indicated that, for 36 UND football players, there was no significant difference in performance of a dodging test while wearing cleats, disks, or bars as heel structures on their shoes

Alien Registration- Driscoll, William J. (Oakfield, Aroostook County)

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