Molecular phylogenies have been used to study the diversification of many clades. However, current methods for inferring diversification dynamics from molecular phylogenies ignore the possibility that clades may be decreasing in diversity, despite the fact that the fossil record shows this to be the case for many groups. Here we investigate the molecular phylogenetic signature of decreasing div...

Using advanced techniques of econometrics and a metaheuristic optimization approach, this study attempts to evaluate the potential advantages of international portfolio diversification for East Asian international investors when investing in the Middle Eastern emerging markets. Overall, the results of both econometric and the metaheuristic optimization methods are supporting each other. Finding...

This study investigated “Entrepreneurship and Economic Diversification in Nigeria: The Moderating influence of Enabling Environment on Global Satellite Mobile Village’s Experience.” purpose was to find out the relationship between entrepreneurship economic diversification with focus moderating enabling environment. A cross-sectional survey design convenience sampling technique were adopted. Pil...

Traditionally, patterns and processes of diversification could only be inferred from the fossil record. However, there are an increasing number of tools that enable diversification dynamics to be inferred from molecular phylogenies. The application of these tools to new data sets has renewed interest in the question of the prevalence of diversity-dependent diversification. However, there is gro...

The objective of this study is to examine the portfolio theory that suggests that diversification can potentially reduce the return variance and the probability of failure of a portfolio. The current study is to investigate the diversification measure by means of Hershman-Herfindahl index, and applies the " diversification index " proposed by Demsetz & Strahan (1997) by scaling systematic risk ...

Using a database of more than 8,000 companies from 35 countries, we find that the value of corporate diversification is related to the level of capital market development, integration, and legal systems. Among high-income countries, where capital markets are well developed and integrated, we find a significant diversification discount. By contrast, for the lower income and segmented countries, ...

Insects contain more than half of all living species, but the causes of their remarkable diversity remain poorly understood. Many authors have suggested that herbivory has accelerated diversification in many insect clades. However, others have questioned the role of herbivory in insect diversification. Here, we test the relationships between herbivory and insect diversification across multiple ...

The current analysis contributes to the literature on real exchange rate effect of development aid by separating allocated trade sector (Aid for Trade – AfT) from other flows. empirical findings show that higher AfT flows lead a depreciation in recipient economies, while generate an appreciation rate. total works through openness, export product diversification, and inward foreign direct invest...

This paper summarizes stratificational theory, and applies its linguistic methods in a sememic analysis of English prepositions. The phenomenon of interlocking diversification is shown to be quite generally present among the prepositions. Also, the analysis of prepositions is shown to entail a partial sememic analysis of other words; it therefore provides a starting point for the sememic analys...