Rural accessibility is the only metric used in the Sustainable Development Goals to track progress toward better transport services in low- and middle-income countries. This paper estimates the rural accessibility index, defined as the proportion of the rural population who live within 2...

This paper presents the details of three scenarios-leapfrog, lock-in, and lopsided-that describe an illustrative set of technological states. Based largely on expert interviews, the paper argues that the technology outcomes are heavily attributable to the actions (or in some cases, inaction) of...