Designed Experiments: An Interdisciplinary Approach to Space Education
The challenge of space is forcing engineering faculties to re-examine their roles in preparing college graduates to contribute to the space exploration and colonization effort. One of the greatest obstacles to conquering space is lack of funding. Poor designs, cost overruns, rework and faulty products can effectively derail our space program. We need an increased educational emphasis on developing technical and managerial skills designed to improve the quality, reliability, maintainability and cost-effectiveness of our space-related engineering systems. This emphasis must be interdisciplinary in nature in order to have the impact required to substantially influence the way the space industry does business. This paper addresses a powerful interdisciplinary method of blending engineering theory with statistics in order to improve the cost-effectiveness of space-related experimentation and design of engineering systems.
Abstract This study contributes to the literature on socially responsible investing by examining the diversification potential of commodities, specifically oil, gold and clean energy together with the Brazilian Corporate Sustainability Index (ISE). Multivariate GARCH models are used to model volatility spillovers and conditional correlation in pairs of stocks containing ISE. Specifically, A-BEKK and A-DCC models with spillovers are estimated. The models’ results are used to compute and analyze the optimal weights and hedge ratios for stock portfolio holdings. The greatest benefit from diversification is obtained through the acquisition of gold and then OVX.