Advice to purchasing authorities

Purchasing a cycle helmet: are retailers providing adequate advice?

OBJECTIVES The aim of this study was to examine the selling of cycle helmets in retail stores with particular reference to the adequacy of advice offered about the fit and securing of helmets. METHODS All 55 retail outlets selling cycle helmets in Christchurch, New Zealand were studied by participant observation. A research entered each store as a prospective customer and requested assistance...

Protecting specialist services for children with vision impairment Advice for local authorities

From Logarithmic Advice to Single-Bit Advice

Building on Barak’s work (Random’02), Fortnow and Santhanam (FOCS’04) proved a time hierarchy for probabilistic machines with one bit of advice. Their argument is based on an implicit translation technique, which allow to translate separation results for short (say logarithmic) advice (as shown by Barak) into separations for a single-bit advice. In this note, we make this technique explicit, by...

Advice to Mothers

How to Buy Advice∗

A decision maker, whose payoff is influenced by an unknown stochastic process, seeks the advice of an advisor, who may be informed about the process. We identify a sufficient condition on the correlation between the advisor’s information and the true stochastic process, called conservativeness, for which there exists a strategy D of the decision maker that will yield him an almost first-best pa...