search query: @author Ulph, D. / total: 8
references: 6-8 / 8
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6.
Sequential product innovation and industry evolution.
Economic Journal
1987 : VOL. 97 CONFERENCE PAPERS SUPPL. , p. 32-43
 1987 Beath, J.
Katsoulacos, Y.
Ulph, D.
7.
On indices for the measurement of poverty.
Economic Journal
1981 : JUN, VOL. 91:362, p. 515-526
 1981 Clark, S.
Hemming, R.
Ulph, D.
8.
Uncertain lifetime, imperfect insurance markets and the valuation of pension wealth.
Review of Economic Studies
1980 : APR, VOL. 47:148, p. 587-593
 1980 Ulph, D.
Hemming, R.
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