Ecision Usefulness approach vs. Measurement Approach

the course book is Financial Accounting Theory sixth edition. by William R. Scott
The paper is not related to numbers but to accounting Theory.
The paper should discuss:
What is Decision usefulness approach and what is measurement approach.
a what is the role of financial accounting on both approaches?
For Decision usefulness approach:
Discuss relationship of the below topics with Decision usefulness approach:
The single-Person Theory
The Rational, Risk-Averse investor
The principal of portfolio Diversification
The Optimal investment
Portfolio Risk
What are the reasons for market response?
-For the measurement approach:
Are securities markets fully efficient?
What other reasons could support measurement approach?
The value relevance of financial statement information
Ohlsonas clean surplus theory
Auditorsa legal liability
Asymmetry of investor Losses