Willingness to pay for the preservation of urban green space in Indonesia

Figures & data

Table 1. Measurement items perception towards Imam Bonjol Park

No	Statement	SA	A	U	D	SD
1.	The location of Imam Bonjol Park is easy to reach
2.	Recreational facilities (places to sit, play, etc.) in the Green Open Space area are fully available
3.	Public facilities (toilet, prayer room) are available
4.	At the Imam Bonjol Park location, security is guaranteed
5.	It is easy to get the required information at Green Open Space
6.	Green Open Space of Taman Imam Bonjol is well organized
7.	Green Open Space of Taman Imam Bonjol is clean
8.	Traders are not selling in Green Open Space area.
9.	Playground for children in the Green Open Space area is well organized.

Table 2. Description of variables used in logistic regression

Coding	Definition of variables	Description of Variables
JK	Gender	Dummy variable where male = 1 and female =0
UM	Age	Continuous
SP	Marital Status	Dummy variable where married status = 1 and single = 0
TP	Level of Education	Dummy variable where elementary school level = 1, junior high school level = 2, senior high school level = 3, diploma level = 4, and university level = 5.
PD	Income (converted $ where $1 = Rp 14.000)	Continuous
JT	Total Number of Dependents	Continuous
PM	Knowledge about the Functions of Imam Bonjol Park Padang	Dummy variable where 0 = has knowledge on functions of Iman Bonjol Park Padang and 1 = otherwise.
FK	Visiting Frequency	Continuous
DM	Visit Origin	Dummy variable where local resident =0 and outside resident = 1
BK	Visiting Fee (converted $ where $1 = Rp 14.000)	Continuous
PsP	Perceptions toward Imam Bonjol Park Padang	Five-point scale
WTP	Willingness to Pay	Yes =1 and No =0

Table 3. Descriptive statistics

Definition of variables	Information Category	Value	Percent	Mean ± STD Error	Min-Max
Gender	Female	119	59.5	0.41 ± 0.03	0
	Male	81	40.5		1
Age (years)	Continuous	200	-	32.58 ± 0.78	16–83
Marital Status	Single	71	35.5	0.65 ± 0.03	0
	Married	129	64.5		1
Level of Education	Yunior High School	22	12	3.43 ± 0.08	1–5
	Senior High School	124	62
	Diploma	7	3.5
	University	47	24
Income ($)	Continuous	200	-	189.72 ± 110,082.80	14–714
Total Number of Dependents	Continuous	200	-	2.14 ± 0.12	0–10
Knowledge about the Functions of Imam Bonjol Park Padang	No	31	15.5	0.85 ± 0.03	0
	Yes	169	84.5		1
Visiting Frequency (times)	1 time	13	6.5	4.62 ± 0.12	1–4
	2 times	18	9
	3 times	30	15
	More than 3 times	139	70
Visit Origin	Local residents	37	18.5	0.82 ± 0.03	0
	Others	163	81.5		1
Visiting Fee ($)	Continuous	200		4.29 ± 4798.36	0.25–50

Figure 1. WTP (Yes/No).Source: Authors‘ Calculation

Figure 2. WTP amount distribution.Source: Authors‘ Calculation

Table 4. The results of the logit regression

Variable	B	S.E.	Wald	df	P-Value	Exp(B)	Cox & Snell R Square	Nagelkerke R square	Log-Likelihood	Hosmer and Lemeshow
Gender	0.127	0.199	0.406	1	0.524	1.135
Age	−0.012	0.019	0.394	1	0.53	0.988	0.187	0.25	178.58	0.649
Marital Status	−1.688	0.655	6.635	1	0.01	0.185
Total Number of Dependents	0.002	0.168	0.000	1	0.99	1.002
Income	0.000	0.000	1.049	1	0.306	1.000
Visiting Origin	−0.063	0.572	0.012	1	0.912	0.939
Visiting Fee	0.000	0.000	0.685	1	0.408	1.000
Visiting Frequency	0.087	0.109	0.629	1	0.428	1.091
Perceptions toward Imam Bonjol Park Padang	0.111	0.044	6.467	1	0.011	1.118
Knowledge about the Functions of Urban green space s	1.328	0.546	5.915	1	0.015	3.773
D_Junior High	0.432	0.56	0.595	1	0.44	1.54
D_Senior High	−20.699	15743.69	0.000	1	0.999	0.000
D_Diploma	21.375	15743.69	0.000	1	0.999	1.92E+09
D_Bachelor with Honours	−0.649	0.923	0.493	1	0.482	0.523
Constant	−3.455	1.858	3.458	1	0.063	0.032

Note. B is coefficient, S.E. is the standard error, Wald is Wald chi-square test, df is the degrees of freedom, Exp (B) is odd ratio

Table 5. CVM analysis results

Model	Unstandardized Coefficients		Standardized Coefficients	t	Sig.	R-Square	F-Statistic	P-value
	B	S.E.	Beta
(Constant)	−9005.864	3929.539	-	−2.292	.025
Gender	−91.911	93.301	−.106	−.985	.328	0.286	2.654	0.006
Age	−19.057	38.227	−.061	−.499	.620
Marital Status	593.225	1090.483	.072	.544	.588
Total Number of Dependents	−103.994	379.278	−.036	−.274	.785
Income	.000	.000	.083	.617	.539
Visiting Origin	−1308.567	1188.567	−.122	−1.101	.275
Visiting Fee	.011	.012	.113	.909	.366
Perceptions toward TIP	235.044	79.527	.311	2.956	.004
Functions’ Knowledge	1324.861	1283.082	.114	1.033	.305
Visiting Frequency	169.772	227.912	.080	.745	.459
Education	476.274	183.713	.302	2.592	.012

Data availability statement

Data supporting reported results can be obtained by contacting the authors.