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Essays on the Business Cycle Moreover, voucher programs that encourage the entry of new competitors may produce more options for parents than even the most decentralized of district governance structures, reducing the potential for coordination failures and increasing the probability that even parents who value the peer group highly will choose effective schools. | INFORMATION TO USERS This manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus some thesis and dissertation copies are in typewriter face while others may be from any type of computer printer. The quality of this reproduction is dependent upon the quality of the copy submitted. Broken or indistinct print colored or poor quality illustrations and photographs print bleedthrough substandard margins and improper alignment can adversely affect reproduction. In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages these will be noted. Also if unauthorized copyright material had to be removed a note will indicate the deletion. Oversize materials e.g. maps drawings charts are reproduced by sectioning the original beginning at the upper left-hand comer and continuing from left to right in equal sections with small overlaps. ProQuest Information and Learning 300 North Zeeb Road Ann Arbor Ml 48106-1346 USA 800-521-0600 UMI Essays on the Business Cycle A Dissertation Presented to the Faculty of the Graduate School of Yale University in Candidacy for the Degree of Doctor of Philosophy by Don Harding Dissertation Director w. c. Brainard May .