Referencing Styles : Harvard 1) Suppose a number of Australian Universities, except Charles Darwin University, open a campus in several Asian countries. How will this impact the enrolments at CDU? Explain using demand and supply diagram. 2) How will student enrolments be impacted at CDU if the government doubled the interest rate charged on student loans for all tertiary students in Australia? Explain using demand and supply diagram. 3) Why is marginal cost curve upward sloping? Is marginal cost curve always going to be upward sloping for all firms? 4) What are the main determinants of economic growth? How is growth related to Production Possibility Frontier? 5) What is the market structure faced by Australia Post? Are there any substitutes available for Australia Post’s services? What was Australia Post’s profitability in the year 2015? Show using a diagram.