19 research outputs found
The quality of options in strategic decision making: a study about creativity and completeness in business decision making
A qualidade das decisões estratégicas dos empresários está diretamente relacionada
à capacidade que eles demonstram para encontrar alternativas criativas
quando enfrentam os problemas de suas empresas. Essas alternativas podem
ser geradas intuitivamente, utilizando heurÃsticas. As pesquisas sobre geração
de alternativas têm indicado consistentemente que as pessoas não são eficientes
nessa atividade. As explicações para esse fato, contidas na literatura sobre
decisão, não são conclusivas e permitem especulações a respeito. Para explorar
essa questão e relacioná-la ao administrador brasileiro, foi idealizado um experimento
com 174 alunos de quatro cursos de MBA para avaliar a originalidade
e a completude das alternativas. O experimento e a respectiva análise basearam-se
na confluência da pesquisa experimental, oriunda da psicologia cognitiva
da decisão, com as visões da ciência da decisão organizacional tradicional e o
novo campo de estudo das decisões intuitivas ou naturalÃsticas. Para mensurar a
criatividade das alternativas apresentadas durante o experimento, empregou-se
o conceito de árvore hierárquica, que demonstrou ser uma poderosa ferramenta
para a tipologia de alternativas. O resultado desse experimento confirmou o
baixo desempenho em geração de alternativas dos gerentes e, ao mesmo tempo,
indicou que, provavelmente, a etapa de geração de alternativas isolada da etapa
de escolha pode melhorar a qualidade das alternativas. A heurÃstica, por sua vez,
não demonstrou influenciar o conjunto de alternativas geradas. _________________________________________________________________________________________ ABSTRACT: The quality of strategic decisions of executives is directly related to the ability they
have to find creative alternatives when facing business problems. These alternatives could be generated intuitively, using heuristics. On the other hand, the
researches on alternatives generation have consistently indicated that people are
not efficient on this duty. The argument for that, contained in the decision’s literature,
is not conclusive and it allows speculation about it. To explore this issue
and relate it to the Brazilian Administration, an experiment was designed for 174
students of four courses of MBA. The experiment and the analysis were resulted
from the confluence between the experimental research from decision cognitive
psychology with science’s vision of the traditional organizational decision and the
new field of study on naturalistic or intuitive decisions. To measure the creativity
of the alternatives presented during the experiment, the concept of hierarchical
tree was utilized and it has proved a powerful tool to the typology of alternatives.
The result of this experiment confirmed the poor performance in alternatives
generation by managers and at the same time, indicated that probably, the generation
of options isolated of analysis can produce better quality of alternatives.
The heuristic, do not demonstrated any influence on options generated
Adsorption of H 2S, HS, S, and H on a stepped Fe(310) surface
Using periodic density functional theory we studied adsorption of H 2S, HS, S and H on the Fe(310) stepped surface, comparing our results with those on Fe(100). H 2S is predicted to weakly adsorb on all high-symmetry sites, with the bridge site at the step edge as preferred one, oriented perpendicularly to the (100) terraces with the two H atoms pointing out of the surface. Adsorption of HS, S, and H is more stable on the bridge, four-fold hollow, and three-fold hollow sites, respectively. The detailed analysis of the computed local density of states show common trends with the behavior of adsorption energies and is able to account for energy differences of all species adsorbed on Fe(100) and Fe(310). Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2010