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Justification: With the impact of UN, different departments will be closely linked, and the progress
of one SDG will impact the others in a relatively fast speed.
• Assumption 3: Statistical properties of the network such as the indicators’ data will not change
abruptly and stays predictable.
Justification: Major influence factors are continuous and relatively stable within a short term.
In this paper, some important notations are listed in Table 1.
Table 1: Definitions of the Model Variable Parameters
Symbol Definition
INet The graph of Indicator Network
GNet The graph of Goal Network
G
i
The ith Goal of SDGs, i = 1, · · · , 17
I
i
(j) The jth indicator of the ith Goal of SDGs
W
ind
(I
i
(j) → I
i
′
(j
′
)) The edge weight in the Indicator Network
W
goal
(G
i
→ G
j
) The edge weight in the SDG Network
λ((I
i
(j)) The contribution(weight) of I
i
(j) to G
i
µ
1
, · · · , µ
5
The weight of 5 priority indicators
Y Number of years that we collect data of each I
i
(j)
P S(G
i
) Priority score of G
i
P F
m
(n) Priority factor from priority G
m
to affected G
m
3 SDG Network Construction by System Dynamics
Figure 2: Flow Chart of the SDG Network Construction