Abstract:

One of the points of neoclassical economics is the rationality of the individual which is borrowed from classical economics. With this principle, it has been assumed that people are rational in their suffering, pleasure, perceived benefit and planning of future needs. However, market anomalies in the stock market have led to the questioning of this principle which advocates human rationality. The reasons that affect individual investor behavior and the resulting market anomalies have been tried to be explained by researchers in different ways. These studies have included the concept of behavioral finance in the literature. In order to understand the factors that lead to the deterioration of market efficiency, it is necessary to examine the factors affecting human behavior. One of the most common of these factors is the weather conditions. In this study, trading volume and trading size and weather conditions in BIST100 index between February 2011 and September 2015 were considered. For the analysis of the work, weather conditions will be classified as sunny, cloudy, rainy, and snowy. Afterwards, SPSS 22.0 program will be used to determine whether there is a meaningful difference between the average of transaction volume and transaction amounts.

Keywords: