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...

valuation is one of the main subjects in investment management which plays an important role in efficient capital allocation. valuation has become an important subject since supreme leader addressed the 44th principal of constitutional law. considering many problems which have arrised in valuation and stock pricing by privatization organization during resent years,it is essential to pay more at...

Most structural and some nonstructural water projects require significant sunk costs and lead to uncertain economic and ecological outcomes. For instance, building irrigation or flood control dam requires sizable sunk cost, an investment that is difficult to recover later. The dam faces uncertainties in terms of future rainfall, the performance of the dam’s structures and downstream levees, the...

Meta-analysis has increasingly been used to synthesise the environmental valuation literature, but only a few test the use of these analyses for benefit transfer. These are typically based on national studies only. However, meta-analyses of valuation studies across countries are a potentially powerful tool for benefit transfer, especially for environmental goods where the domestic literature is...

We examine the effects of rivals’ earnings news during the waiting period of an IPO’s going public process on IPO pricing and completion decision, and investigate the implication of these effects for post-IPO operating performance. We find that a signal-to-noise measure of rivals’ earnings news has significantly negative valuation effects on both price revision and initial return for completed ...

The primary motivations for the formation of airline alliances have been to increase revenues and decrease costs for alliance partners. A major advantage comes through increase in the number of destinations served by an airline at little costs, by using codesharing. Airlines share seat inventory on each other's codeshare flights which complicates their revenue management practice and leads to s...

Development of downstream operations in the Iran's petroleum industry has always been considered as a necessity in to create more value-added. One of ways to accomplish the misson, especially in the current situation, is exploiting the capacity of petroleum startups. Considering that these companies need to be valued for financing, and since the traditional valuation methods do not provide effi...

All nationwide return indices for direct owned property are based on valuations, which give a discussion of how well market value estimates reflect transaction prices and market movements. Two valuation experiments in relation to the Swedish Property Index give indications about the magnitude of the variation in estimated market values as well as variation in individual discounted cash flow par...