You can find lecture notes, class notes, readings, and problem sets at the "teaching" link to the left, especially Advanced Investments and Asset Pricing. Note, the answers to many problem sets are intentionally not posted. I may fix that some day but it's a big project. Notes related to macroeconomics and time series are on the "research" page. This link gives you a sample chapter.
Capital requirements are standardized regulations in place for banks and other depository institutions that determine how much liquid capital that is, easily sold securities must be held viv-a-vis a certain level of their assets. An angry public and uneasy investment climate usually prove to be the catalysts for legislative reform in capital requirements , especially when irresponsible financial behavior by large institutions is seen as the culprit behind a financial crisis, market crash, or recession. They also ensure that banks and depository institutions have enough capital to sustain operating losses OL while still honoring withdrawals. In the United States, the capital requirement for banks is based on several factors but is mainly focused on the weighted risk associated with each type of asset held by the bank. These risk-based capital requirements guidelines are used to create capital ratios, which can then be used to evaluate lending institutions based on their relative strength and safety. Typically, Tier 1 capital includes common stock, disclosed reserves, retained earnings and certain types of preferred stock. Capital requirements aim not only to keep banks solvent but, by extension, to keep the entire financial system on a safe footing.