TNAG-1779-FCO40-2539-Hong-Kong-international-telecommunications-1988 — Page 125

FCO40 Hong Kong Department Records 聯邦事務部香港部檔案 All

EXHIBIT 1.6 RELATIONSHIP OF USER BENEFITS TO TRUE ECONOMIC BENEFITS

Old price, cost

15%

drop

New price, cost

Old price

15% drop ↓

New price

Old cost

15% drop

Д

New cost

Old cost

15% drop ↓

New cost

Old price

15% drop

New price

(1) CASE 1: NON-SUBSIDIZED SERVICES

Demand curve

Number of customers

(2) CASE 2: CROSS-SUBSIDIZING SERVICES

Demand curve

Number of customers

(3) CASE 3 : CROSS-SUBSIDIZED SERVICES

Note: Area shaded

must be subtracted from area

shaded N to measure

true economic benefit in case 3.

Demand curve

Number of customers

Potential user benefit as measured in Exhibit 1.5

True economic benefit

17.

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