Richard Shumway

Learn More
................................................................................................................................. iii FOREWORD................................................................................................................................. v EXECUTIVE SUMMARY(More)
Feeder calf producers face a problem common to Perrin [6, p. 64] showed that the present value all owners of productive assets: how long should the of an asset that is to be exchanged every T years with asset (brood cow) be used before it is replaced? a replacement having an identical stream of returns is Expected productivity of a brood cow can be measured(More)
OBJECTIVES To report on initial patient characteristics, treatment practices, toxicity, and early biochemical disease-free survival (bDFS) of localized prostate cancer treated with stereotactic body radiotherapy (SBRT) and enrolled in the RSSearch(®) Patient Registry. METHODS  A retrospective analysis was conducted on patients with clinically localized(More)
Several common flexible functional forms are evaluated for Texas agricultural production utilizing three procedures. Nested hypothesis tests indicate that the normalized quadratic is the marginally-preferred functional form followed by the generalized Leontief. Predictive accuracy results are ambiguous between the generalized Leontief and the normalized(More)
A method of combining survey data and Dairy Herd Improvement Association (DHIA) records to achieve low cost farm trials is presented. Farm trials and surveys of current practices and production responses are useful to identify yield gaps between expectations predicted from experimental findings and actual field results. Different management schemes can be(More)
statistical test results. Methodologically, when proOutput supplies and input demands were estimated duction structure is homothetically separable in a for each of five South Central states. The model ubset of outputs and/or inputs, both prices and structure in each state was based on prior parametric quantities of the subset can be consistently aggretests(More)