This paper details the history of Jetty, an app-based collective transport platform operating in Mexico City since August 2017. It sets out the origins of the idea, recounts the strong competitive and regulatory pushback Jetty has faced, and evaluates Jetty's current growth and impact. In this...

In der kommunalpolitischen und planerischen Diskussion zum Stadtverkehr verstecken sich in vielfältigen Themen zugleich auch Fragen der Zeitgerechtigkeit. Sie werden nur punktuell von Betroffenengruppen artikuliert und sind im Sinne der Verfahrensgerechtigkeit im Planungsprozess nur selten...

We propose a theory-inspired measure of the accessibility of a city's center: the size of the surrounding area from which it can be reached within a specific time. Using publicly-available optimal routing software, we compute these "accessibility zones" for the 109 largest American and European...

Credence goods are characterized by informational asymmetries between sellers and consumers that invite fraudulent behavior by sellers. This paper presents the results of a natural field experiment on taxi rides in Athens, Greece, set up to measure different types of fraud and to examine the...

Demografische Entwicklungen und Arbeitskräftewanderungen sind in weiten Teilen der ländlichen Regionen der neuen Bundesländer maßgeblich dafür ursächlich, dass dort ein gravierender Nachfragerückgang bei den Leistungen des liniengebundenen Öffentlichen Personennahverkehrs festzustellen...

This paper attempts to investigate the impact of sectoral wage laws in South Africa. Specifically, we examine the impact of minimum wage laws promulgated in the Retail, Domestic work, Forestry, Security, and Taxi sectors using 15 waves of biannual Labour Force Survey data for the 2000-2007...

Virtually all public policies regarding taxation and the redistribution of income rely on explicit or implicit assumptions about the long run effect of wage rates on labor supply. The available estimates of the wage elasticity of male labor supply in the literature have varied between -0.2 and...

Credence goods are characterized by informational asymmetries between sellers and consumers that invite fraudulent behavior by sellers. This paper presents the results of a natural field experiment on taxi rides in Athens, Greece, set up to measure different types of fraud and to examine the...

Recent monetary search and Calvo-type models predict that the relationship between inflation and price dispersion is U-shaped, implying an optimal rate of inflation above zero. Moreover, monetary search models emphasize a critical dependence of the real effects of inflation on sellers' market...