“…The usual method then proceeds by rewriting (2) as z=y+ID (3) * I should like to thank K. Mayhew for comments on an earlier version of this note. 'These include Pencavel (1974), Mulvey (1976, 1977, 1978), and Layard et. al.…”
“…The usual method then proceeds by rewriting (2) as z=y+ID (3) * I should like to thank K. Mayhew for comments on an earlier version of this note. 'These include Pencavel (1974), Mulvey (1976, 1977, 1978), and Layard et. al.…”
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