New Roots

New Keynesian Roots

The stability properties of a macromodel are determined by its characteristic roots. Conventional price level determinacy is achieved by imposing restrictions on policy rules so that the characteristic roots satisfy a saddlepath criterion. This paper shows how to choose arbitrary roots for the canonical New Keynesian macromodel using a simple forward-looking Taylor-type policy rule. We are able...

New sesquiterpene coumarin from the roots of Ferula latisecta

Objective: The genus of Ferula belongs to the tribe Peucedaneae, subfamily of Apioideae and family of Umbelliferae with 133 species distributed throughout the Mediterranean area and central Asia, especially in the former USSR and neighboring countries such as Iran. The popular Persian name of the most of these species is “Koma”. In this research we tried to isolate and elucidate the structure o...

The Technology Roots Spectrum: A New Visualization Tool for Identifying the Roots of a Technology

Introduction The purpose of this work is to present a new tool for identifying the technological foundations, or roots, of a specific technology in the whole range of existing technologies. The idea is to go back to the date before a specific technology existed as such― its origin date―and to evaluate the influence of every existing technology in relation with it. Our tool is based on the role ...

new sesquiterpene coumarin from the roots of ferula latisecta

objective: the genus of ferula belongs to the tribe peucedaneae, subfamily of apioideae and family of umbelliferae with 133 species distributed throughout the mediterranean area and central asia, especially in the former ussr and neighboring countries such as iran. the popular persian name of the most of these species is “koma”. in this research we tried to isolate and elucidate the structure o...

isolation of new disulphides from ferula foetida roots