Yes Observations 440 440 440 Table 6 Robustness Alternative measures of states

Yes observations 440 440 440 table 6 robustness

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Yes Observations 440 440 440 Table 6. Robustness: Alternative measures of states and diversity Any centralization State centralization *** p<0.01, ** p<0.05, * p<0.1. Robust standard errors in parentheses. Regressions estimated by ordered probit with coefficients reported, except with "any centralization" as the outcome, in which case probit is used with marginal effects reported. Standard errors in parentheses clustered by region. Other controls are those listed as "controls" in the table of summary statistics. State centralization State centralization State centralization
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(1) (2) (3) Equation 1 0.778* 0.976** (0.408) (0.455) Equation 2 0.916*** 0.848*** (0.282) (0.268) Equation 3 0.777** 0.865** (0.359) (0.420) Equation 4 -1.249* -19.310*** (0.691) (1.282) Ecological diversity 0.794*** 0.703** 0.661* (0.212) (0.343) (0.373) Ecological diversity 0.794*** 0.506** 0.415* (0.266) (0.257) (0.222) Ecological diversity 0.794*** 0.693*** 0.423* (0.266) (0.238) (0.221) Other controls No Yes Yes Region F.E. No No Yes Observations 440 440 440 Table 7. Robustness: Estimation methods State centralization: Alternative regions State centralization: Generalized ordered probit *** p<0.01, ** p<0.05, * p<0.1. Robust standard errors in parentheses. Regressions estimated by ordered probit. Standard errors in parentheses clustered by region. Other controls are those listed as "controls" in the table of summary statistics. State centralization: No "trade" controls State centralization: No date control
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Dropped High leverage High dfbeta South African Bantu Ethiopia and Horn Moslem Sudan Indian Ocean Ecological diversity 0.642** 0.958*** 0.735*** 0.752*** 0.611** 0.768*** (0.286) (0.289) (0.228) (0.233) (0.238) (0.226) Other controls Yes Yes Yes Yes Yes Yes Region F.E. No No No No No No Observations 406 411 421 400 417 435 Ecological diversity 0.236 0.682** 0.484** 0.412* 0.369 0.496** (0.334) (0.285) (0.205) (0.234) (0.229) (0.215) Other controls Yes Yes Yes Yes Yes Yes Region F.E. Yes Yes Yes Yes Yes Yes Observations 406 411 421 400 417 435 State centralization State centralization Table 8. Robustness Influential observations *** p<0.01, ** p<0.05, * p<0.1. Robust standard errors in parentheses. Regressions estimated by ordered probit. Standard errors in parentheses clustered by region. Other controls are those listed as "controls" in the table of summary statistics.
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(1) (2) (3) (4) (5) (6) Ecological diversity 0.678*** 0.542*** 0.327** 0.699** 0.612*** 0.387** (0.219) (0.163) (0.150) (0.275) (0.190) (0.191) Other controls No Yes Yes No Yes Yes Region F.E. No No Yes No No Yes Observations 440 440 440 370 370 370 Ecological diversity 1.597** 1.023 1.335 (0.716) (2.711) (2.366) Predicted Eco. Div. (FAO) 0.494*** 0.284* 0.037 (0.181) (0.151) (0.179) Other controls No Yes Yes No Yes Yes Region F.E. No No Yes No No Yes Observations 370 370 370 440 440 440 IV Ordered probit *** p<0.01, ** p<0.05, * p<0.1. Robust standard errors in parentheses. Standard errors in parentheses clustered by region. Other controls are those listed as "controls" in the table of summary statistics. Table 9. Robustness: Reverse causation State centralization OLS OLS: Temp. s.d. nonmissing State centralization
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(1) (2) (3) Ecological diversity 1.080*** 0.943*** 0.479** (0.291) (0.262) (0.229) Ecological diversity 0.676*** 0.597*** 0.304 (0.233) (0.211) (0.214) Ecological diversity 0.492** 0.491** 0.326 (0.228) (0.244) (0.228) Wald test ( λ=0 ) 33.71 1.187 7.22e-06 Ecological diversity 0.697*** 0.512*** 0.304 (0.201) (0.192) (0.196) WX p 0 0.000 0.000 Moran p 0.278 0.426 0.186 Ecological diversity 0.583 0.730*** 0.449* (0.420) (0.259) (0.244) Above Median Diversity SATE 0.202** (0.096) 4.51 3.08 Other controls No Yes Yes Region F.E. No No Yes Observations 440 440 440 *** p<0.01, ** p<0.05, * p<0.1. Robust standard errors in parentheses. Regressions estimated by ordered probit with coefficients reported, except with spatially correlated errors, described in the text. Standard
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  • Spring '17
  • JAMES FENSKE

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