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As part of the low-carbon policy and development in Taiwan, the Bureau of Energy introduced the “Green Energy Roofs Project” in 2017, which encouraged homeowners to install green energy roofs. However, the incentives of homeowners and solar photovoltaic operators to participate in this Project were low. The aim of this study is to propose and evaluate alternative models for investing green energy roofs. The contributions of this study are that, first, we consider factors such as risk management schemes and crowdfunding that have not been considered in evaluating green energy roofs project. In addition, this study provides a solution to Taiwan government’s current dilemma about how to encourage homeowners to install green energy roofs. This study adopts five common investment appraisal methods (including payback period, discounted payback period, net present value, internal rate of return and profitability index) to evaluate four different models for investing green energy roofs. The results show that when homeowners are fully responsible for installation costs of green energy roofs with partial funds borrowed from banks and with consideration of risk management, the homeowners have better investment returns. Therefore, the Taiwan government could consider the alternative strategy proposed in this study for promoting green energy roofs so that the country can x`move a bigger step forward towards the goal of being nuclear-free.

The study examined the capital investment decision of small and medium enterprises ( SME’s) in Nigeria. The objective of the study is to determine if small and medium enterprises in Nigeria utilize investment techniques. The survey research method was employed to carry out the study. Data were elicited through the use of questionnaires and oral interviews. These data were analyzed and presented using a statistical technique such as tables and percentages. The result revealed that most small and medium enterprises in Nigeria utilized investment techniques in their investment decision. Based on the above findings, it was recommended that SMEs in Nigeria should be encouraged to employ the services of qualified professionals or someone who has knowledge on basic techniques for investment decisions, the government should organize frequent training for SMEs on financial and investment decisions.