Effect of the anchoring and adjustment heuristic and optimism bias in stock market forecasts.

Resumen

La previsión del mercado de valores es un proceso importante y desafiante que influye en las decisiones de inversión. Este artículo presenta un diseño experimental que tiene como objetivo medir la influencia de la heurística de anclaje y ajuste y el sesgo de optimismo en los pronósticos del mercado de valores. El estudio se realizó utilizando información del índice financiero S&P MILA Pacific Alliance Select. Este fue presentado a 670 estudiantes de las ciudades de Concepción (Chile), Cali (Colombia) y Lima (Perú). Los datos fueron recopilados y presentados a través de un instrumento que pedía a los participantes que hicieran un juicio de pronóstico del dicho índice financiero con base en los gráficos presentados, representando un año, un mes, una semana y el último valor de cierre del índice. De esta manera, era posible medir la influencia de la heurística de anclaje y ajuste para establecer si la presencia de un valor inicial afectaba el pronóstico financiero. Además, el estudio buscó determinar si el juicio emitido estaba sesgado hacia una posición optimista o pesimista, demostrando así la presencia de un error o sesgo de expectativa, conocido como sesgo de optimismo. Los resultados se analizaron usando el método de mínimos cuadrados, y el panel de datos confirmó que la heurística de anclaje y ajuste influye en el pronóstico del índice financiero utilizado en el estudio. Del mismo modo, se infirió la presencia de sesgo de optimismo en el proceso cognitivo del pronóstico financiero.

Palabras clave:

Finanzas conductuales Heurística de anclaje y ajuste Juicio Pronóstico financiero Sesgo de optimismo

Citas

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