Hi, anyone done a Corporate Finance Assignment similar to below? Or can kindly enlighten me on how to go about doing it as i got no clue how to start it. Thanks in advance.

a) For a two asset portfolio, demonstrate that portfolio risk can be reduce to zero with perfect negative correlation.

b) Explain why this is not necessarily a particularly convincing explanation for portfolio effects and demonstrate how portfolio effects arise in a rather different way for correlations close to zero.

c) Outline and discuss the reason why there is little or no portfolio effect with strong positive correlation