By examining the independent and joint effects of the skill and physical bases of relatedness, this study develops a multidimensional view of relatedness in diversification. The paper compares the ways the two bases identify relatedness, and examines empirically the relationship between relatedness and performance for a sample of 158 large diversified manufacturing firms. Each base of relatedne...

Understanding correlations in complex systems is crucial in the face of turbulence, such as the ongoing financial crisis. However, in complex systems, such as financial systems, correlations are not constant but instead vary in time. Here we address the question of quantifying state-dependent correlations in stock markets. Reliable estimates of correlations are absolutely necessary to protect a...

Artificial neural networks learn how to solve new problems through a computationally intense and time consuming process. One way to reduce the amount of time required is to inject preexisting knowledge into the network. To make use of past knowledge, we can take advantage of techniques that transfer the knowledge learned from one task, and reuse it on another (sometimes unrelated) task. In this...

This paper analyzes the relationship between international financial integration and economic growth. Recent literature, surveyed in this paper, emphasizes the role of financial deepening on economic growth. Less attention has been paid, however, to the role of international financial integration in promoting a deep domestic financial market and through that channel fostering economic growth. F...

The study of diversification and firm performance lies at the heart of the strategy literature (Dess, Gupta, Hennart, & Hill, 1995). Nevertheless, in spite of all the efforts of researchers to untangle the diversificationperformance relationship milieu, there is still much confusion surrounding this vital issue. One potential source of confusion centers on the type of diversification being purs...

in the information and communication era, management information systems play an undeniable role in organizations.  bank parsian is a iranian banking and financial services company, which has a network of 273 banking branch, known as the largest iranian private bank. this research examines the gaps in customer relationships systems in bank parsian based on characteristics of management informat...

Diversified crop production is a key agroecological practice that enhances ecosystem functions and reduces reliance on costly external inputs, such as for plant protection nutrition but might also increase labour costs lower yields. We investigate if functional diversification, i.e., cultivation of species with contrasting ecological functions, associated higher growth in farm economic performa...

Due to the sublimation and perfection of human knowledge in economics, the concept of efficiency developed in the past two decades and the measurement of it, based on different theories and practice. In economics, efficiency means the maximum of possible output from a certain amount of input. The efficiency is very important for developing countries Because these countries face to a shortage of...

Which queries stand to gain or loose from diversifying their results? Some queries are more difficult than others for diversification. Across a number of conceptually different diversification methods, performance on such queries tends to deteriorate after applying these diversification methods, even though their initial performance in terms of relevance or diversity tends to be good.