I certify that I have read this study and that in my opinion it
conforms to acceptable standards of scholarly presentation and is fully
adequate, in scope and quality, as a dissertation for the degree of
Doctor of Philosophy.




 Fred J. Prochaska, Chairman
 Professor of Food and Resource Economics


 I certify that I have read this study and that in my opinion it
conforms to acceptable standards of scholarly presentation and is fully
adequate, in scope and quality, as a dissertation for the degree of
Doctor of Philosophy.




 James C. Cato
 Associate Professor of Food and Resource
 Economics


 I certify that I have read this study and that in my opinion it
conforms to acceptable standards of scholarly presentation and is fully
adequate, in scope and quality, as a dissertation for the degree of
Doctor of Philosophy.




 dJhn E. Reynolds
 Professor of Food and Resource Economics


 I certify that I have read this study and that in my opinion it
 conforms to acceptable standards of scholarly presentation and is fully
 adequate, in scope and quality, as a dissertation for the degree of
 Doctor of Philosophy.




 Thomas H. Spreen
 Assistant Professor of Food and Resource
 Economics