What businesses don’t count could cost them profits

Cost-benefit analysis can reveal value that never appears on an invoice

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    • At one Collyer Quay restaurant, business reportedly fell by 70% amid the haze that affected Singapore in October.
    • At one Collyer Quay restaurant, business reportedly fell by 70% amid the haze that affected Singapore in October. PHOTO: TAY CHU YI, BT
    Published Wed, Nov 4, 2026 · 07:00 AM

    WHAT is clean air worth to a restaurant? Diners do not pay for it separately. Yet, when smoke fills the air, the answer becomes painfully clear.

    At one Collyer Quay restaurant, business reportedly fell by 70 per cent amid the haze that affected Singapore in October. Between Oct 5 and 11, poor visibility forced 16 flights to divert from Seletar Airport.

    Businesses that had not produced the smoke nevertheless suffered the consequences.