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Résumé :
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The budgets for research and development (R&D) and marketing should be determined by managers to attain product market advantages. However, in response to investor expectations for short-term stock returns, managers may modify these budgets myopically to avoid unexpected short-term earnings shortfalls, at the cost of long-term profitability. We propose that the past behavior of firm stock returns and volatility may create investor expectations of short-term financial performance, which drives managers to modify either R&D or marketing budgets or both. In the context of high-technology firms, a Bayesian vector autoregression model, supported by content analysis, shows that few firms exhibit high levels of managerial myopia by simultaneously cutting both R&D and marketing budgets; instead, firms display moderate myopic reactions, in the form of unanticipated decreases in R&D budgets but increased budgets for marketing functions. The tendency to manage myopically in response to past stock returns and volatility increases as firm size or industry concentration decrease.
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