Join TSR now and get all your revision questions answeredSign up now

Why is the substitution effect always negative? Watch

    • Thread Starter
    Offline

    0
    ReputationRep:
    As the title says? Is that due to the relationship of sacrificing good A for good B or something completely different?
    Cheers
    Offline

    2
    ReputationRep:
    http://www.youtube.com/watch?v=QqvB8N_m-tI
 
 
 
Poll
Is GoT overrated?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.