This is the largest multicenter study evaluating for the first time the impact of ovarian response on cumulative live birth rate. The significant progressive increase of cumulative live birth rate with the number of oocytes in our study suggests that ovarian stimulation may not have a detrimental effect on oocyte/embryo quality in good-prognosis women less than 40 year old. Nevertheless, although very high ovarian response may further increase cumulative live birth rates, ovarian stimulation should be rational and avoid extreme response in terms of oocytes retrieved to preserve patients' convenience and safety and avoid ovarian hyperstimulation syndrome or other iatrogenic complications.

Entrepreneurial Orientation (EO) has received substantial conceptual and empirical attention, representing one of the few areas in entrepreneurship research in which a cumulative body of knowledge is developing. Nonetheless, an important message from past research is that simply examining the direct effect of EO on firm performance provides an incomplete picture, especially in the case of new ventures. This study examined the influence of Dominant Logic (DL) on the relationship between EO and firm performance. Results based on a sample of 149 new manufacturing ventures indicated that DL mediates the EO-performance relationship, and risk taking, aggressiveness and innovativeness had the highest correlations with the internal and external conceptualization of DL. The empirical evidence suggests that new ventures must foster DL implementing appropriate strategic processes in order to maximize the effect of EO on performance.

En este artículo se presenta una propuesta de modelo para medir la competitividad de los tres niveles geográficos simultáneamente: país, estados y municipios, utilizando para ello un método multivariado de análisis factorial que ayuda a identificar a cinco factores, siete subfactores y treinta variables, con los que se miden y presentan los resultados de un estudio empírico sobre once entidades: el país, el Estado de Sonora y nueve municipios que representan el 80% de la población y el 80% de su PBT. Los resultados indican que el municipio de Hermosillo fue el más competitivo en 2010.

A study of the competitive advantage in successful New Technology Based Firms found that their technology strategy played a key role for making these companies improve their competitive advantage. We appealed to the grounded theory as a qualitative strategy to build theory, and to the exploratory case-study methodology to effectively understand this phenomenon in specific contexts as the one represented by small entrepreneurial firms in comparison with large established firms. A suitable comprehension of the different contexts required of a view of technology strategy that is more dynamic than those typically available. We build an explanatory model which integrates and groups the propositions previously developed. We view the study as exploratory to a class of studies aimed at understanding the technology strategy process in new ventures.

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