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Table 5 Tobit regression results for OD efficiency and policy/area characteristics (CRS and VRS, without expenditure)

From: Exploring the influence of context and policy on health district productivity in Cambodia

  CRS VRS
Coef. z Coef. z  
Year
 2009 0.08 2.24* 0.11 2.41**
 2010 0.17 4.76 0.13 2.77***
 2011 0.15 4.11*** 0.11 2.41**
Policies
 Vouchers only 0.04 0.41 −0.05 −0.40
 HEF only 0.11 1.74** −0.03 −0.40
 HEF + vouchers 0.16 2.24** 0.00 0.05
 HEF + vouchers with SOA 0.26 2.99*** 0.16 1.52
Population Density
 2 0.01 0.09 −0.02 −0.29
 3 −0.04 −0.23 −0.03 −0.18
 4 0.16 1.45** 0.09 0.74
Province
 Kampong Cham 0.16 1.88*** 0.14 1.66
 Kampot    −0.19 −1.97
 Kandal 0.11 1.29*** 0.12 1.37
 Stung Treng −0.27 −1.76 −0.25 −1.62
Constant 0.46 5.45*** 0.69 7.90
 Observations 92.00   92.00  
  1. p < 0.1, ** p < 0.05, *** p < 0.01