This book presents Professor Lawrence R Klein and his group's last quarterly econometric model of the United States economy that they had produced at the University of Pennsylvania. This is the last econometric model that Lawrence Klein and his disciples have left after some 50 years of cumulated efforts of constructing the US economy model up to around 2000. It was widely known as the WEFA Econometric Model Mark 10, and is the culmination of Professor Klein's research which spans more tha...

Daniel Patterson and Eric Russell present a groundbreaking case for considering John James Audubon’s and John Bachman’s quadruped essays as worthy of literary analysis and redefine the role of Bachman, the perpetually overlooked coauthor of the essays. After completing The Birds of America (1826–38), Audubon began developing his work on the mammals. The Viviparous Quadrupeds of North America volumes show an antebellum view of nature as fundamentally dynamic and simultaneo...