We study different mixes of private and public supply of roads in a network with bottleneck congestion and heterogeneous users. There are two parallel links for one origin and destination pair and two groups of travellers, where the group with a higher value of time also has higher schedule...

Rideshare companies Uber and Lyft are facing predictable complaints as they continue to grow. Many of these complaints concern safety, with some in the taxi industry claiming that ridesharing is less safe than taking a traditional taxicab. Ridesharing safety worries relate to the well-being of...

Although spending on infrastructure does not, in itself, stimulate the economy, infrastructure investments can contribute to economic growth, since infrastructure is part of the economy's capital stock. Investments in infrastructure can also benefit the economy by alleviating the problems that...

Many nations across the world are building High Speed Railways Network. Recently, one of the Major entrants into this sector is the Republic of India. India already has a vast and well-established network of Railways. Though it is run professionally, there are still certain shortcomings of the...

Ridesharing services have rapidly expanded in Latin America, unleashing protests and incumbent's disapproval. Understanding the net effects derived form these services is key for policy makers and the current discussion on technology and regulation. Existing literature has traditionally focused...

Day-to-day traffic (DTD) dynamic systems have attracted much attention recently as a powerful tool to describe the evolution of network flows over time. A number of DTD models adopting various behavioral principles have been proposed, but for most of them, either their assumptions are introduced...

We study the efficiency of private supply of roads under demand uncertainty and evaluate various regulatory policies. Due to demand uncertainty, capacity is decided before demand is known but tolls can be adjusted after demand is known. Policy implications can differ from those under...

Can industrial policy be effective when dealing with a revolutionary new technology? Mark Casson's recent book, "The World's First Railway System," offers the intriguing claim that a slight dose of central planning by the British government in the 1840s would have produced a dramatically more...

We study whether subways alleviate road congestion by examining 45 subway line launches in China and using detailed data on road speed. Our difference-in-differences estimation finds that in the first year after a subway line is launched, rush-hour speed on nearby roads increases by about 4%....

It is obvious that holding city population constant, differences in cities across the world areenormous. Urban giants in poor countries are not large using measures such as land area,interior space or value of output. These differences are easily reconciled mathematically aspopulation is the...