Metro accessibility and space-time flexibility of shopping travel: A propensity score matching analysis

The central role of the propensity score in observational studies for causal effects

Paul R. Rosenbaum, Donald B. Rubin · Biometrika · 1983 · 31K citations · Full text

Public Health, Biostatistics, Causal Inference +16

Determining Sample Size for Research Activities

Robert V. Krejcie, Daryle W. Morgan · Educational and Psychological Measurement · 1970 · 18.1K citations

Public Health, Biostatistics, Educational Measurement +17

Balance diagnostics for comparing the distribution of baseline covariates between treatment groups in propensity‐score matched samples

Peter C. Austin · Statistics in Medicine · 2009 · 6.5K citations · Full text

Public Health, Biostatistics, Causal Inference +10

Travel and the Built Environment

Reid Ewing, Robert Cervero · Journal of the American Planning Association · 2010 · 5.1K citations

Public Health, Urban Design, Urban Planning +17

WHAT ABOUT PEOPLE IN REGIONAL SCIENCE?

Torsten Hägerstraand · Papers of the Regional Science Association · 1970 · 3.4K citations

Social Sciences, Geography, Regional Studies +3