Selecting Large Portfolios of Social Projects in Public Organizations

Table 5

QR (a) and PR (b) for instances of P500A2T15S40.

(a)

Projects with reduction (in %)	Reduction index 𝛾 (in %)
	10	30	50	90	95	100
25	0.169	0.680	0.346	8.360	9.217	9.966
50	0.869	0.902	1.488	12.197	12.930	13.535
75	1.100	1.787	3.383	15.283	16.404	16.971
100	1.344	2.729	5.038	18.564	20.431	20.726

(b)

Projects with reduction (in %)	Reduction index 𝛾 (in %)
	10	30	50	90	95	100
25	1.512	4.066	7.152	12.771	12.711	13.348
50	2.401	8.149	13.050	21.857	23.123	23.555
75	3.726	11.790	19.031	31.944	33.467	34.114
100	5.279	15.393	24.978	41.012	43.177	43.922