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Table 2 Evaluation of treatment and prevention

From: Drug versus vaccine investment: a modelled comparison of economic incentives

  Treatment (j = 0) Prevention (j = 1)
Parameter (A) Routine and catch-up (B) Annual routine only (C)
Demand (Q ji ) sn c n c if I = 1 1
   1 if I > 1  
Cost avoided (CA ji ) c c n c c c n c i.c c if I ≤ n c
    c c n c if I > n c
Price (P j ) 1/(sn c )·(c c n c  + B 0 ) 1 + r r ψ t 1 r r 1 + n c r r ψ t 1 r r · c c n c + B 1 B 1 + c c · 1 + r r ψ n c 1 r r n c r r ψ t r r r r 1 ψ t r r
Annual sales (S ji ) (c c n c  + B 0 ) P 1 ·n c if i = 1 B 1 + c c · 1 + r r ψ n c 1 r r n c r r ψ t r r r r 1 ψ t r r
   P 1 if i > 1
Total revenuesa 1 ψ t r m r m · c c n c + B 0 1 ψ t r r r m · 1 + r r 1 + r m · 1 + n c r m ψ t 1 r m 1 + n c r r ψ t 1 r r · c c n c + B 1 1 ψ t r m r m · P 1
  1. aManufacturers’ revenues discounted from the time of launch until the end of the evaluation. See Table 1 for definitions of symbols.