Explain in your own words the following methods. The use of mathematical (formal) derivations will be rewarded with extra points. 1. Two Stage Least Squares.
2. Estimation with control variables.
3. Panel estimation with fixed effects.

All else being equal, which is true about a firm with high operating leverage relative to a firm with low operating leverage? select one: a. a higher percentage of the high operating leverage firm's costs are fixed. b. the high operating leverage firm is exposed to less risk. c. the debt payments limit the high operating leverage firm's opportunities to turn a big profit. d. the high operating leverage firm has more debt.

Which of the following best describes how the federal reserve bank banks during a bank run? a. the federal reserve bank regulates exchanges to prevent the demand for withdrawals from rising above the required reserve ratio. b. the federal reserve bank acts as an insurance company that pays customers if their bank fails. c. the federal reserve bank has the power to take over a private bank if customers demand too many withdrawals. d. the federal reserve bank can provide a short-term loan to banks to prevent them from running out of money. 2b2t

Each of the following scenarios is based on facts in anactual fraud. categorize each scenario as primarily indicating (1) anincentive to commit fraud, (2) an opportunity to commit fraud, or(3) a rationalization for committing fraud. also state your reasoningfor each scenario.a. there was intense pressure to keep the corporation ' stock from declining further. this pressure came from investors, analysts,and the ceo, whose financial well-being was significantly dependent on the corporation ' s stock price.b. a group of top-level management was compensated (mostly in the form of stock-options) well in excess of what would be considered normal for their positions in this industry.c. top management of the company closely guards internal financial information, to the extent that even some employees on a “need-to-know basis” are denied full access.d. managing specific financial ratios is very important to the company, and both management and analysts are keenly observant of variability in key ratios. key ratios for the company changed very little even though the ratios for the overall industry were quite volatile during the time period.e. in an effort to reduce certain accrued expenses to meet budget targets, the cfo directs the general accounting department to reallocate a division’s expenses by a significant amount. the general accounting department refuses to acquiesce to the request, but the journal entry is made trough the corporate office. an accountant in the general accounting department is uncomfortable with the journal entries required to reallocate divisional expenses. he brings his concerns to the cfo, who assures him that everything will be fine and that the entries are necessary. the accountant considers resigning, but he does not have another job lined up and is worried about supporting his family. therefore, he never voices his concerns to either the internal or external auditors.f. accounting records were either nonexistent or in a state of such disorganization that significant effort was required to locate or compile them.