Background In the context of serious concerns over the affordability of healthcare, various authors and international policy bodies advise that strategic purchasing is a key means of improving health system performance. Such advice is typically informed by theories from the economics of organization (EOO). This paper proposes that these theories are insufficient for a full understanding o...

within the early theories of fdi and multinational firms, fdi and foreign trade were considered to be substitutes. new international trade theories emphasize, however the complementary relationship between fdi and foreign trade.this is the result of introducing new aspects in the models like increasing returns to scale, product differentiation and technology-differences among nations.this paper...

revolution theoreticians have declared contending and approximately incompatible theories, caused in bewilderment among concerned field enthusiasts. as a result, some have intended to categorize these theories till reduce bewilderment, and make them easier to study. one of these theoreticians is jack goldstone who at first categorized theories of revolution into three generations. but after the...

having in mind that ir theories include fpa aspect, the main purpose of this paper is to examine the contribution of fpa in these theories. the necessity of this study become clearer when one acknowledges that fp makers should pay attention accurately to relationship between theory and practice in order to make successful rational decision in new complicated world. this enables them not only to...

Proton decay is a smoking gun signature of Grand Unified Theories (GUTs). Searches by Super-Kamiokande have resulted in stringent limits on the GUT symmetry breaking scale. The large-scale multipurpose neutrino experiments DUNE, Hyper-Kamiokande and JUNO will either discover proton or further push scale above $10^{16}$ GeV. Another possible observational consequence GUTs formation cosmic string...