The high cost of prescription drugs has been an issue that numerous federal agencies have examined for years. In 2003, Congress passed the Medicare Prescription Drug, Improvement, and Modernization Act, better known as Medicare Part D, in an effort to ease the burden of skyrocketing prescription prices for citizens 65 and older. While much of the discussion has focused on the impact on Medicare and Medicaid, the search for the source of high prescription drug prices has possible benefits for all patients. Unfortunately, the vast majority of research into this topic focuses only on the manufacturers of prescription drugs. This thesis examined the relationship between wholesale and retail prices of prescription drugs to discover whether this is another possible source of high prescription drug costs that policy makers need to consider. The findings suggest that more research is warranted. Many of the pharmacies surveyed reported unexpected negative mark-ups. Moreover, the Average Wholesale Rice evidently is not an accurate basis for comparison with actual retail prices. The findings suggest that more research is warranted, including studies by federal legislative and executive branch actors with investigatory authority. / Master of Arts

This thesis addresses the problems associated with security of the electricity supply in the UK. The British electricity supply industry has experienced a significant structural change. Competition has been brought into the electricity industry and a single wholesale electricity market of Great Britain has been established. The evolution of the British electricity market raises new challenges, such as improving the liquidity of wholesale markets and developing clean energy. The wholesale electricity prices are less transparent and trading arrangements are very complex in the British electricity market. In this thesis a fundamental model, called a stack model, has been developed in order to forecast wholesale electricity prices. The objective of the stack model is to identify the marginal cost of power output based on the fuel prices, carbon prices, and availability of power plants. The stack model provides a reasonable marginal cost curve for the industry which can be used as an indicator for the wholesale electricity price. In addition, the government's targets for climate change and renewable energy bring new opportunities for wind energy. Under the large wind energy penetration scenario the security of the energy supply will be essential. We have modelled the correlations between wind speed data for a set of wind farms. The correlation can be used to measure the portfolio risk of the wind farms. Electricity companies should build their portfolio of wind farms with low or negative correlations in order to hedge the risk from the intermittency of wind. We found that the VAR(1) model is superior to other statistic models for modelling correlations between wind speeds of a wind farm portfolio.