Let R be a pseudo-valuation domain with associated valuation domain V and I a nonzero proper ideal of R. Let R̂ (resp., V̂ ) be the I-adic (resp., IV -adic) completion of R (resp., V ). We show that R̂ is a pseudo-valuation domain (which may be a field); and that if I 6= I2, then V̂ is the associated valuation domain of R̂. Let R be an SFT globalized pseudo-valuation domain with associated Prüfer do...

This paper discusses a fundamental market failure regarding environmental conservation, and how the problem can be solved by appropriate policies. A "seller" (or owner of a tropical forest) may be motivated to conserve if a "buyer" is expected to pay. The buyer, however, does not find it necessary to pay as long as the seller conserves in any case. This contradiction implies that the forest wil...

Although consumer profiling advocates tout benefits from personalization, consumer advocacy groups oppose profiling in online markets because of concerns about privacy and price discrimination. Policies such as opt-out or opt-in that provide consumers the option to voluntarily participate in profiling are the favored compromise. We compare voluntary profiling to no profiling and show that volun...

Let R be a ring and V be a matrix valuation on R. It is shown that, there exists a correspondence between matrix valuations on R and some special subsets ?(MVPR) of the set of all square matrices over R, analogous to the correspondence between invariant valuation rings and abelian valuation functions on a division ring. Furthermore, based on Malcolmson’s localization, an alternative proof for t...

BACKGROUND From a neuroeconomics perspective, decisions about what to eat are ultimately determined by basic features of how the brain codes and contrasts the values of different rewards and the potential positive or negative consequences of eating the food. Several brain regions play a role in this valuation and comparison process. Among these regions, the orbitofrontal cortex (OFC), which occ...

Present study has been done with the aim of reviewing effects of eight-year war between Iran and Iraq on the first program of economic and social development in Islamic Republic of Iran. Theoretical framework of this study is functionalist perspective in order to identify positive and negative functions of this war for the first development program after Islamic revolution that has been done wi...

In this paper we study rank one discrete valuations of the field k((X1, . . . ,Xn)) whose center in k[X1, . . . ,Xn] is the maximal ideal. In sections 2 to 6 we give a construction of a system of parametric equations describing such valuations. This amounts to finding a parameter and a field of coefficients. We devote section 2 to finding an element of value 1, that is, a parameter. The field o...

This paper introduces a machine learning approach to quantify altruism from the linguistic style of textual documents. We apply our method central question in (social) entrepreneurship: How does impact entrepreneurial success? Specifically, we examine effects on crowdfunding outcomes Initial Coin Offerings (ICOs). The main result suggests that and ICO firm valuation are negatively related. We, ...