The geographic distribution of gaming machine proceeds in New Zealand

Figures & data

Figure 1. Distribution of EGVs and EGMs by DDI deprivation decile.

Figure 2. Quarterly nominal GMP and GMP per capita across New Zealand: Mar13–Mar18.

Table 1. Pearson correlation between meshblock NZDEP13 scores and 2013 meshblock GMP per capita (Mar13).

	λ parameter (distance threshold)
		1	2	2.5	3	3.5	4	5	7.5	10	12.5	15	17.5	20
α parameter	0.25	0.0786	0.2577	0.2780	0.3090	0.3103	0.3120	0.3081	0.2890	0.2605	0.2311	0.2149	0.2079	0.2092
	0.50	0.0823	0.2571	0.2771	0.3116	0.3161	0.3206	0.3208	0.3117	0.2962	0.2788	0.2686	0.2631	0.2617
	0.75	0.0864	0.2455	0.2634	0.2958	0.3014	0.3062	0.3077	0.3026	0.2937	0.2839	0.2778	0.2741	0.2722
	1.00	0.0901	0.2187	0.2332	0.2573	0.2625	0.2663	0.2675	0.2638	0.2587	0.2533	0.2499	0.2478	0.2463
	1.25	0.0916	0.1783	0.1879	0.2012	0.2049	0.2073	0.2078	0.2051	0.2022	0.1995	0.1976	0.1964	0.1953
	1.50	0.0899	0.1395	0.1444	0.1503	0.1523	0.1536	0.1536	0.1519	0.1506	0.1493	0.1484	0.1478	0.1472
	1.75	0.0861	0.1133	0.1158	0.1184	0.1194	0.1200	0.1200	0.1193	0.1187	0.1182	0.1178	0.1176	0.1173
	2.00	0.0813	0.0967	0.0981	0.0995	0.1000	0.1003	0.1004	0.1001	0.0999	0.0997	0.0996	0.0995	0.0994

Note: All Pearson correlation coefficients are significant at the p < 0.0001 level.

Table 2. Pearson correlation matrix for dependent and independent variables.

	GMP Per Capita	Deprivation	EGV Density	% Māori	% Pacific	% Asian	% Euro	Income
Deprivation	0.3208
EGV Density	0.2398	0.0658
% Māori	0.1648	0.5587	−0.1464
% Pacific	0.0859	0.4448	0.2670	0.1564
% Asian	0.0329	−0.0213	0.4380	−0.1644	0.1441
% Euro	−0.1705	−0.4920	−0.2392	−0.2751	−0.4700	−0.3901
Income	−0.1997	−0.5303	0.0403	−0.3000	−0.2409	−0.0637	0.3100
EGV Proximity	−0.2428	−0.0375	−0.2083	0.0554	−0.0742	−0.1060	0.0254	0.0169

Note: All Pearson correlation coefficients are significant at the p < 0.0001 level.

Figure 3. GMP per capita map (including location of EGVs) and Dynamic Deprivation Index map of Auckland as of Mar18.

Figure 4. Criterion validity metrics for the DDI. Panel A–Pearson Correlation between GMP per capita and DDI deprivation scores between Mar13 and Mar18. Panel B–Distribution of GMP and GMP per capita by Mar13 deprivation decile and Mar18 deprivation decile.

Table 3. Standardised regression coefficients derived from linear regression models of GMP per capita.

	Applied to Dep Quintile	Standardised regression coefficients
		Deprivation	EGV density	EGV proximity	Income	% Māori	% Euro	% Pacific	% Asian	Model R^2
Model 1	All	0.2973	0.2564	−0.1982	−0.0734	0.0259	−0.0341	−0.1549	−0.0855	0.2148
Model 2	All	0.2465	0.1924	−0.1952	−0.0590	0.0483	–	–	–	0.1933
Model 3	1	–	0.3821	−0.3539	−0.1050	0.0648	–	–	–	0.2763
	2	–	0.2238	−0.4124	−0.0710	0.0548	–	–	–
	3	–	0.2844	−0.1508	−0.0710	0.0358	–	–	–
	4	–	0.1191	−0.1888	−0.0515	0.0360	–	–	–
	5	–	−0.1561	−0.4683	0.0306*	0.0326*	–	–	–

*Standardised regression coefficients are significant at the p < 0.003 level. All other standardised regression coefficients are significant at the p < 0.0001 level.