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Table 4 Price and income elasticity of demand, by ES group

From: Inequalities in purchase of mosquito nets and willingness to pay for insecticide-treated nets in Nigeria: Challenges for malaria control interventions

Price elasticity of demand
  Estimated coefficient (95% CI) Price elasticity of demand, evaluated at:
   Mean WTP (N101.7) 25th Percentile (N200) Actual selling price (N350)
Q1 -0.009 (-0.01, -0.006) -0.92 -1.8 -3.15
Q2 -0.007 (-0.008, -0.006) -0.71 -1.4 -2.45
Q3 -0.008 (-0.009, -0.007) -0.81 -1.6 -2.8
Q4 -0.006 (-0.007, -0.006) -0.61 -1.2 -2.1
Q5 -0.006 (-0.007, -0.005) -0.61 -1.2 -2.1
Income elasticity of demand  
  YED (102) YED (200) YED (350)  
Q2 to Q3 0.26 0.05 0.16  
Q3 to Q4 0.31 0.52 1.16  
Q4 to Q5 0.05 0.02 -0.13  
  1. Note: Income elasticity of demand = YED