The main purpose of this research is the study on effect of Financial and Operating Leverage and Venture Capital on Tobin's Q ratio amongst companies listed in Tehran Stock Exchange. In this research, the Holdings and Investment companies are used as statistical samples and 73 enterprises that are listed in Tehran Stock Exchange within 2001 to 2016 have been studied. The results driven by this ...

The impact of financial leverage on firm investment is one of the most important issues in corporate finance. Debt overhang reduces the incentives of shareholder–management coalition in controlling the firm to invest in positive net-present-value investment opportunities. On the other hand, firms without debt in their financial structure face with a new problem known as over-investment. T...

For many natural systems there is an advantage in their simulating on a computer. In this article, a way how to determine the influence of the predator-prey simulation’s parameters on the model’s behaviour based on the leverage points is examined. An investigation whether it is possible to sort the parameters according to the importance and if it is possible to automate the process to a certain...

The presence of clusters in a data set is sometimes due to the existence of certain relations among the measured variables which vary depending on some hidden factors. In these cases, observations could be grouped in a natural way around linear and nonlinear structures and, thus, the problem of doing robust clustering around linear affine subspaces has recently been tackled through the minimiza...

1 Dario Nardi, University of California Los Angeles, Program in Computing, Math Sciences 6363, Los Angeles, CA 90095 [email protected] Abstract—Systems concepts like non-linearity and feedback are relevant in many fields, but interactive software to demonstrate these concepts are uncommon. Three mini-applications are discussed. These applications are relatively simple in programming and desi...

New Zealand has a poor rate of immunisation in comparison to other OECD countries. Immunisation is a major public health issue as it is one of the most cost-effective health interventions. However, high immunisation rates are required to realise the full benefit of immunisation programmes. In this paper we use Systems Thinking to identify principal dynamics that underlie immunisation system and...

A successful knowledge management strategy identifies a firm’s key leverage points essential to achieve business results. These often reside in core business processes that may be re-engineered to capitalize on and expand organizational knowledge resources and capabilities. This case describes a 4-year initiative undertaken by IBM to re-engineer its customer relationship management process and ...

Integrated supply chains are one of the most powerful competitive tools in today's globalizing business economy. For agricultural products, successful supply chain development projects reduce not only the transaction costs but also the institutional barriers that decouple individual links in traditional distribution channels. They allow participants to achieve higher levels of service and to ca...

The accurate specification and modelling of risk are integral to optimal portfolio and risk management. In this context, a wide variety of conditional and stochastic volatility models has been used to estimate latent volatility (or risk). In both the conditional and stochastic volatility literature, there has been some confusion between the definitions of asymmetry and leverage. This paper exam...