We study Medicare's competitive bidding program (CBP) for durable medical equipment (DME). We exploit Medicare claims data to examine both prices and utilization, focusing on continuous positive airway pressure (CPAP) devices to treat sleep apnea. We find that spending falls by 47.2% percent...

In an unregulated electricity generation market, the degree to which generators in" different locations compete with one another depends on the capacity to transmit electricity" between the locations. We study the impact of transmission capacity on competition among" generators. We show that...

Future electricity systems with tight constraints on carbon emissions will rely much more on wind and solar generation, with zero marginal cost, than today. We use capacity expansion modelling of Texas in 2050 to illustrate wholesale price distributions in future energy-only, carbon-constrained...

Blackouts impose substantial economic costs in developing countries. This paper advances a new explanation for their continued prevalence: unlike in high-income countries, where regulatory mandates require utilities to satisfy all electricity demand, utilities in developing countries respond to...

We examine the performance attributes of a merchant transmission investment framework that relies on market driven' transmission investment to provide the infrastructure to support competitive wholesale markets for electricity. Under a stringent set of assumptions, the merchant investment model...

Growing amounts of intermittent renewable generation capacity substantially increases the complexity of determining whether sufficient energy will be available to meet hourly demands throughout the year. As the events of August 2020 in California and February 2021 in Texas demonstrate, supply...

In many countries, unreliable inputs, particularly those lacking storage, can significantly limit a firm's productivity. In the case of an increasing frequency of blackouts, a firm may change factor shares in a number of ways. It may decide to self generate electricity, to purchase intermediate...

Economists, energy experts, and policymakers have called for accelerating investment in the U.S. electricity transmission network. Additional transmission lines could better integrate markets, reducing the total cost of electricity generation. They could also allow for the better integration of...

India, seeking to reduce electricity shortages, set up a new power market, in which transmission constraints sharply limit trade between regions. I use confidential bidding data to estimate the costs of power supply and simulate market outcomes with more transmission capacity. I find that the...

Access to electricity is a crucial determinant of quality of life and productivity. The United States has a highly reliable electricity grid but it faces new resilience challenges posed by more intense natural disasters and rising state level green power requirements. Using a U.S electric...