Which of the following is true about options arbitrage (assu…

Which of the following is true about options arbitrage (assuming put-call parity is violated)? 1. Profit is earned at the time of portfolio entry (i.e. when you buy or short-sell your positions) 2. Profit is earned at the time of portfolio exit (i.e. when you close out all your positions) 3. Profit is guaranteed no matter what the stock price is at expiry 4. It costs nothing to perform options arbitrage 5. Options arbitrage is always impossible to achieve

On October 13, John bought one January futures contract on c…

On October 13, John bought one January futures contract on copper at the price of 75 cents per pound. There are 25,000 pounds of copper in each contract. The futures price was 82 cents per pound on December 30. What’s John’s profit between October 13 and December 30?

Short answer Instructions-   On this exam you must answer a…

Short answer Instructions-   On this exam you must answer a single free response question.  The question is worth 10  points, be as concise as possible.  Treatment of hemoglobin with low concentrations of urea (a chaotropic agent that at high concentrations will completely denature proteins) results in the disruption of the α and β-subunit interfaces.  This disruption will cause all four subunits to dissociate resulting in the loss of the normal quaternary structure hemoglobin exhibits, BUT the subunits will retain their tertiary structure and will still function in oxygen binding.  Given this information answer the following questions:  Will the oxygen-binding curve of hemoglobin in low concentrations of urea be sigmoidal or hyperbolic (simply state “sigmoidal” or “hyperbolic”) (2.5 points)?  Will the oxygen-binding curve of hemoglobin in low concentrations of urea have a higher or lower affinity for oxygen relative to hemoglobin under normal conditions (simply state “higher” or “lower”) (2.5 points)?  Now state WHY you think hemoglobin has a lower or higher affinity for oxygen when placed in a solution with low concentrations of urea (5 points)?