This study examines the hedging effectiveness of portfolio investment diversification between developed and developing economies; with focus on the Nigerian stock asset vis--vis the stock assets of the United States (US) and United Kingdom (UK). Its main contribution is in the analysis of optimal portfolio diversification using optimal portfolio weight (OPW) and optimal hedging ratio (OHR). Empirical findings show that the OPW and OHR are low, which indicates impressive potential gains from combining Nigerian stock assets in an investment portfolio with US and UK stock assets. In addition, exchange rate volatility is found to pose stern limitation on the potential benefits of this portfolio diversification arrangement. It is therefore recommended that the monetary authority in Nigeria should pursue policies towards reducing exchange rate volatility to the barest minimum. This will possibly attract more investors from developed economies who might be willing to combine Nigerian stock in their investment portfolio to minimize portfolio risk.

Recently released power sector report by the National Bureau of Statistics records a total average energy generation of 2,548GWH by 25 power stations, from October 2016 to December 2016. Daily Energy generation, attained the 2016Q4 highest level of 3,859.6MW in October 2016, and a lowest level of 2522MW in the same month. On the average, current daily energy generated which is below 3,000MW, prompts system malfunctions. Thus, the irregular power generation and supply experienced in recent times is attributable to shortage of gas owing to non-functional major pipelines, in addition to the inability of GENCOs to make payments for the available gas supply. Given the recent challenges to power supply, efforts should be geared towards the diversification of electricity generation. Government should consider investment in renewable as well as coal energy to complement gas power supply.