sexta-feira, abril 20, 2012

O problema não é étnico... talvez genético

Com Byrnes e Storbacka aprendemos que os empresários portugueses não são os piores do mundo, afinal o resto do mundo comete o mesma falha de não se concentrar nos clientes-alvo. Este trecho de Kahneman devia ser motivo de reflexão para todos nós que comentamos os projectos de construção no nosso país:
"In July 1997, the proposed new Scottish Parliament building in Edinburgh was estimated to cost up to £40 million. By June 1999, the budget for the building was £109 million. In April 2000, legislators imposed a £195 million “cap on costs.” By November 2001, they demanded an estimate of “final cost,” which was set at £241 million. That estimated final cost rose twice in 2002, ending the year at £294.6 million. It rose three times more in 2003, reaching £375.8 million by June. The building was finally completed in 2004 at an ultimate cost of roughly £431 million.
(Moi ici: Lembram-se das estimativas de utilização do aeromoscas de Beja? E do TGV em Portugal? E do TGV em Espanha?) A 2005 study examined rail projects undertaken worldwide between 1969 and 1998. In more than 90% of the cases, the number of passengers projected to use the system was overestimated. Even though these passenger shortfalls were widely publicized, forecasts did not improve over those thirty years; on average, planners overestimated how many people would use the new rail projects by 106%, and the average cost overrun was 45%. As more evidence accumulated, the experts did not become more reliant on it. In 2002, a survey of American homeowners who had remodeled their kitchens found that, on average, they had expected the job to cost $18,658; in fact, they ended up paying an average of $38,769."
Trecho retirado de "Thinking, Fast and Slow" de Daniel Kahneman.

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