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Table 1.

A comparative overview of relevant literature research.

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Table 1 Expand

Table 2.

Definition of variables.

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Table 2 Expand

Table 3.

Payment matrix of government, recycling companies and consumers.

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Table 3 Expand

Table 4.

Stability analysis of equilibrium points.

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Table 4 Expand

Fig 1.

Phase diagram when the constraint condition is R5 –R6 > C5 –C6 + B1 +B2 + A1 +A2.

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Fig 1 Expand

Fig 2.

Phase diagram when the constraint condition is R5 –R6 < C5 –C6 + B1 + B2 –F1.

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Fig 2 Expand

Table 5.

Stability analysis of the equilibrium point at C5 –C6 + B1 + B2 –F1 < R5 –R6 < C5 –C6 + B1 + B2 + A1 + A2.

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Table 5 Expand

Table 6.

Stability analysis of equilibrium point at R1 –C1 ≥ R3 –C3, R2 –C2 ≥ R4 –C4.

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Table 6 Expand

Fig 3.

Phase diagram when the constraint condition is R5 –R6 < C5 –C6 + B1 + B2 + A1 + A2.

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Fig 3 Expand

Fig 4.

Phase diagram when the constraint condition is R5 –R6 > C5 –C6 + B1 + B2 + A1 + A2.

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Fig 4 Expand

Table 7.

Stability analysis of equilibrium points at R3 –C3 –F1 > R1 –C1 + A1, R4 –C4 > R2 –C2 + A2.

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Table 7 Expand

Fig 5.

Phase diagram when the constraint condition is R5 –R6 < C5 –C6 + B1 + B2 –F1.

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Fig 5 Expand

Fig 6.

Phase diagram when the constraint condition is R5 –R6 > C5 –C6 + B1 + B2 –F1.

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Fig 6 Expand

Fig 7.

Simulation of government strategy evolution at R5 –R6 > C5 –C6 + B1 + B2 + A1 + A2.

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Fig 7 Expand

Fig 8.

Strategy evolution simulation of discarded drug recycling companies at R5 –R6 > C5 –C6 + B1 + B2 + A1 + A2.

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Fig 8 Expand

Fig 9.

Evolution simulation of consumer strategy at R5 –R6 > C5 –C6 + B1 + B2 + A1 + A2.

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Fig 9 Expand

Fig 10.

Simulation of government strategy evolution when R1 –C1 ≥ R3 –C3, R2 –C2 ≥ R4 –C4 and R5 –R6 < C5 –C6 + B1 + B2 + A1 + A2.

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Fig 10 Expand

Fig 11.

Strategy evolution simulation of discarded drug recycling companies when R1 –C1 ≥ R3 –C3, R2 –C2 ≥ R4 –C4 and R5 –R6 < C5 –C6 + B1 + B2 + A1 + A2.

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Fig 11 Expand

Fig 12.

Simulation of consumer strategy evolution when R1 –C1 ≥ R3 –C3, R2 –C2 ≥ R4 –C4 and R5 –R6 < C5 –C6 + B1 + B2 + A1 + A2.

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Fig 12 Expand

Fig 13.

Simulation of government strategy evolution when R3 –C3 –F1 > R1 –C1 + A1, R4 –C4 > R2 –C2 + A2 and R5 –R6 > C5 –C6 + B1 + B2 + A1 + A2.

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Fig 13 Expand

Fig 14.

Strategy evolution simulation of discarded drug recycling companies when R3 –C3 –F1 > R1 –C1 + A1, R4 –C4 > R2 –C2 + A2 and R5 –R6 > C5 –C6 + B1 + B2 + A1 + A2.

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Fig 14 Expand

Fig 15.

Simulation of consumer strategy evolution when R3 –C3 –F1 > R1 –C1 + A1, R4 –C4 > R2 –C2 + A2 and R5 –R6 > C5 –C6 + B1 + B2 + A1 + A2.

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Fig 15 Expand