Among the categories of bullish, neutral and bearish trading strategies, provide two examples of strategies for each category, and explain why each example fits the category it belongs to. What are the main similarities and differences between warrants and options? Rio Tinto is an international company with a management office in Australia. Its products include aluminum, copper, diamond, gold, and iron ore. For this kind of multinational company, what risks in business operations it would meet? How could the company hedge the risks? What is the economic rationale for binomial option pricing model? What are the time value and intrinsic value of call options and put options