NOTES ON DISCOUNTING

On dual-rate discounting

Dual rates of pure time preference, recently introduced for analysing long-term environmental problems, are reinterpreted as shifts in preferences. 2002 Elsevier Science B.V. All rights reserved.

Perspectives on Discounting the Future

Notes on Lactuca saligna in Iran

In the identification process of weed materials available in "IRAN" herbarium, a specimen belonging to the genus Lactuca (Asteraceae) had the following characteristics: Plant annual, many stemmed from base; stem erect-slightly procumbent, slender, glabrous, whitish and leafy. Basal leaves dried; stem leaves ca. 7 × 0.5 cm, glabrous, linear-lanceolate, entire at margin, sessile, auriculate, auri...

Notes on "Notes on conditional previsions"

These notes comment on Williams’ fundamental essay Notes on Conditional Previsions, written as a research report in 1975 and published in the present issue. Basic aspects of that work are discussed, including historical background and relevance to the foundations of probability; examples are supplied to help understanding.

NOTES ON REGULAR MULTIPLIER HOPF ALGEBRAS

In this paper, we associate canonically a precyclic mod- ule to a regular multiplier Hopf algebra endowed with a group-like projection and a modular pair in involution satisfying certain con- dition