Table 6

Willingness to pay in households without net¹

Variable

Stated WTP (tobit)^2;3

SE

Hypothetical WTP (logit)⁴

Robust SE

Child under 5 in household

9.76***

3.39

1.56*

0.42

Female

-6.21**

2.95

0.81

0.22

Head of household

-12.57***

3.26

0.71

0.18

Formal schooling

20.61***

5.81

0.94

0.46

SES quintile (Q1-Q5)

4.37***

1.32

0.93

0.10

Household received IRS

-5.4**

2.76

1.59**

0.36

Knows where nets sold

8.52***

3.11

2.18***

0.60

Knows cost of net

2.26

3.3

3.28***

1.08

Received free net

-6.11*

3.43

1.65*

0.44

Uses alternate method

-1.02

5.03

2.01*

0.79

Malaria cases

-15.46

15.27

11.48**

13.84

Constant

n/a

n/a

0.16

0.76

No. of observations

616

616

¹ Stated WTP expressed in Mozambican Meticals 24 MZN = 1 USD

² Marginal effects after tobit y = E(wtpj0 <wtp < 100) = 77.46

³ Tobit censored observations: 35 left-censored at wtp < = 0; 248 uncensored; 333 right-censored at wtp > = 100

⁴ Odds ratios reported

Covariates: In addition to those shown, all regressions control for age, occupation, number household members, receipt of free net in the past,

interaction term between SES quintile and formal schooling

*Significantly different from 0 at 90 percent confidence

**Significantly different from 0 at 95 percent confidence

***Significantly different from 0 at 99 percent confidence

Chase et al. Malaria Journal 2009 8:132   doi:10.1186/1475-2875-8-132