Which of the following are common types of orders in an electronic order

book in a highly liquid market?

What is the bid-ask spread in an order book?

What is an orderbook?

Eric

wants to invest in stocks that can give him a greater return on his

investment. He is looking at the beta values (risk parameters for systematic risk) of several stocks. Which of

the following should he pick? Does a higher Beta mean more or less risk?

Katie bought her house in 1974 for $85,000. In 2016, it was worth $750,000. What's the rate of return on Katie's investment, if she realizes to seel the house now?

An amount

invested is $2000 and dollar return is $200 then rate of return would be the folollowing. Please calculate the correct rate. 

An amount

invested is $4000 and dollar return is $300. Please calculate the rate of return for this investment and pick the choice below. (Only one answer is right).

Which of the following assets are commodities?

A commodity future is ...

How can you define a financial instrument following academic literature?