Impact of investor sentiments on mean variance trade off with respect to Pakistani market has been investigated in this paper. Composite index for Investor Sentiments for Karachi stock exchange is developed. The six measures incorporated in the composite investor sentiment index are closed end fund discount, KSE turnover, the number of IPOs, average first day returns of IPOs, equity share in ne...

A novel robust estimator is proposed for extracting a single complex sinusoid and its parameter (frequency) from measurements corrupted by white noise. This estimator is called an H1 sinusoidal estimator (HSE), which is derived by applying an H1 filter to a noisy sinusoidal model with the state-space representation. Simulations demonstrate that the HSE is more robust to the nature of observatio...

This paper examines the impact that the running assets management on the profitability of Pakistan cement sector. Moreover, the study outlines the main factors that basically determine the working capital in the financials of Pakistan cement sector. To manage firm’ sliquid assets which is working capital management and to reach a desire equilibrium level among profitability and risk, figures wa...

Diversification has become a common strategy of corporate risk management along with availing other potential benefits. The intent of this study is to identify and analyze the nature of relationship that exists between diversification and capital structure as well as profitability in Pakistan. For this purpose we use the 10 years’ (2000-2009) data of all the companies of chemical and food secto...

For complicated aerodynamic design problems, the efficient global optimization method suffered from defect of incorrect portrayal space, resulting in bad convergence and efficiency performance. To this end, a Kriging-based method, named space exploration (KSE), was proposed paper. It selected multiple promising local minima classified them into partially fully explored terms fitting quality sur...

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