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. Author manuscript; available in PMC: 2014 Jul 23.
Published in final edited form as: Am Econ Rev. 2012 Apr;102(2):994–1028. doi: 10.1257/aer.102.2.994

Table 5. Solving the statistical model.

30 bad data countries, 83 good data countries

Signal to total variance of
measured income
Structural effect of
true income growth
on lights growth
Weight for measured income
growth in calculation of true
growth

Good data
countries: ψg
Bad data
countries: ψb
β Good data
countries: λg
Bad data
countries: λb
1 0.660 1.032 1.0 0.563
0.9 0.594 1.147 0.852 0.484
0.8 0.528 1.290 0.710 0.407
0.7 0.462 1.474 0.575 0.333
0.6 0.396 1.720 0.449 0.262