Here are some publicly available research papers, briefs and datasets relevant to the science of scaling produced by members of our research networks.

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The main objective of this survey is to provide a scientific framework for a wide range of potential studies of the medium- and long-term changes that are taking place during the process of development. The survey is meant to remedy a major constraint on the understanding of development in low-income countries – the absence of detailed, multi-level and long-term scientific data that follows individuals over time and describes both the natural and built environment in which the individuals reside.

Our strategy is to permit the investigation of unexpected connections between the multiple transformations that occur during the process of economic development. To do so, we have implemented a large-scale, nation-wide panel survey in Ghana that will extend for at least 15 years. The planned interval for re-surveying is three years. This interval has been chosen to conserve on costs, because three years is sufficient to begin to observe real changes, and to coordinate with the other Yale EGC panel surveys taking place around the world.

The information gathered from the survey will assist decision makers in the formulation of economic and social policies to:

  • Identify target groups for government assistance
  • Construct models to stimulate the impact on individual groups of the various policy options and to analyze the impact of decisions that have already been implemented
  • Access the economic situation on living conditions of households
  • Provide benchmark data for district assemblies
Basic Information Document

Describes the design of the survey and its coverage and provides general information about the characteristics of the 2009-10 Ghana Socioeconomic Panel survey. It also discusses the data files and constructed variables.

Household Questionnaire

This questionnaire is an essential
tool for using the 2009-10 Ghana Socioeconomic Panel Survey data sets. In addition to the questions, it also contains codes and skip patterns.

Interviewer’s Instruction Manual

This document contains detailed information to the interviewers.


This document contains codes not included in the questionnaire.

The Yale EGC-CMF Tamil Nadu Panel Survey is a collaboration between the Yale Economic Growth Center and the Center for Micro Finance, IFMR in Chennai.

The survey includes all persons in a random sample of 10,000 households located in 200 rural villages and 200 sampling units in non-rural areas of Tamil Nadu state in India. There are three main components to the survey: a questionnaire administered to all households in each of the 200 villages (census households), a set of questionnaires based on in-house interviews with the 10,000 sampled households, and village/community questionnaires.

Three main features of the design are:

  • all transaction by the sampled households in rural areas will be linked with the census households and with immediate relatives of the households heads not residing in the villages to more precisely characterize social networks and interlinking of contracts,
  • all individuals are administered internationally standardized cognition tests, and
  • all individuals in the sampled households will be followed, wherever they reside, to fully measure social and spatial mobility. It is expected that the survey will be repeated, following all individuals, at intervals of three years in coordination with the other ongoing and planned EGC panel surveys.