Impact of information technology on firm productivity has received significant attention in information systems literature. Although many studies were performed to investigate this effect, the results were not conclusive in supporting a systematic effect. This study investigates this phenomenon in both manufacturing and service industries by considering a sample of 85 manufacturing and 77 servi...

The aim of this paper is to examine the concentration of wealth among the group of top wealth holders, defined as those with wealth in excess of a high cut off. The paper begins by considering the definition of this cut off, analogous to the definition of a poverty line at the other end of the distribution. It then considers what can be learned about the proportion classified as ‘rich’ and abou...

the main objective of this study was to investigate the economic efficiency of investment in sugar beet breeding research in iran. the required information including the value and cost of sugar beet production in 2010 and the budget allocated to the sugar beet breeding research were obtained from the office of statistics and information technology of ministry of jihad-e-agriculture and agricult...

this study is done to define the technological contribution in the value chain of chemical industries and assess the effects of this on industrial’s value added. the value network contains 581 active firms in 5 stages and 21 groups, and date gathered with 141 questionnaires by snowball method. then the technology contribution and economic value added are defined for each stage and group. beside...

We begin the development of a theory of Banach spaces in the definable setting of o-minimal structures. We outline several results which develop the theory of compact embeddings for explicitly given function spaces. One aim is to explain the substantive underpinnings of an important observation used in the proof of the Reparameterization Theorem of Pila and Wilkie in [2]. We place this observat...

This study identifies governance patterns for information technology investment decision processes and explores the impact of organizations’ investment characteristics, external Bernard Tan was the accepting senior editor for this paper. Christina Soh was the associate editor. Ranganathan Chandrasekaran and Albert Boonstra served as reviewers. The third reviewer chose to remain anonymous. envir...