When writing the preface the main work has been done. What remains is thanking all those people who directly or indirectly contributed to the out come. My thanks go to my family and friends for their encouragement towards the completion of this book. Among the academic profession, I would like to thank Prof. Dr. Dr. Harald Scherf, my academic teacher, first. During the years at Hamburg University I benefitted especially from his profound knowledge of Keynesian theory. His way of examining an argument in an unbiased way helped me a lot to carry out the reseach I wanted to do. His confidence...