Distance and location are important determinants of many choices that economists study. While these variables can sometimes be obtained from secondary data, economists often rely on information that is self-reported by respondents in surveys. These self-reports are used especially for the...

Methodological research has showcased GPS technology as the new gold-standard in land area measurement in large-scale household surveys. Nonetheless, facing budget constraints, survey agencies continue to measure with GPS only plots within sampled enumeration areas or a given radius of dwelling...

Land area is a fundamental component of agricultural statistics, and of analyses undertaken by agricultural economists. While household surveys in developing countries have traditionally relied on farmers' own, potentially error-prone, land area assessments, the availability of affordable and...

How do international economic agreements influence the investment patterns of firms from emerging economies? This paper studies the ways in which bilateral investment treaties and preferential trade agreements interact with geographic and cultural distance to influence firms' investment...

How does geographic distance affect the impact of trade agreements on bilateral exports, and through what channels? This paper examines this questions in a gravity model context for different types of goods for 185 countries over the period 1965-2010. Three stylized facts emerge. First, although...

This paper compares the impact of distance, a standard proxy for trade costs, on eBay and offline international trade flows. It considers the same set of 62 countries and the same basket of goods for both types of transactions, and finds the effect of distance to be on average 65 percent smaller...

The "distance effect" measuring the elasticity of trade flows to distance has been rising since the early 1970s in a host of studies based on the gravity model, leading observers to call it the "distance puzzle" . This paper reviews the evidence and explanations. Using an extensive data set of...

The paper provides evidence of the effects of changes in transport costs on the geographic concentration of industries. The analysis uses micro-level commodity flow data and micro-geographic plant-level data to construct industry-specific ad valorem trucking rates and continuous measures of...

The dramatic expansion of mobile phone use in developing countries has given rise to a rich and largely untapped source of information about the characteristics of communities and regions. Call Detail Records (CDRs) obtained from cellular phones provide highly granular real-time data that can be...

Returns to education remain an important parameter of interest in economic analysis. A large literature estimates returns to education in the labor market, often carefully addressing issues such as selection, into wage employment and in terms of completed schooling. There has been much less...