Abstract:It is very possible for an investor to take a decision based on superstitions and common beliefs. Actually, Indonesia has a specific calendar system called the Javanese lunar calendar. The Javanese calendar contains several special days because of their sacred characteristics such as "Kamis Wage" (Thursday Wage) and "Jum'at Kliwon" (Friday Kliwon). The day of Friday Kliwon is often considered to be the most frightening which is similar to Friday the Thirteenth in Western culture. This study tried to scrutinize the impact of those sacred days on Indonesian stock returns. By applying GARCH-M, the finding shows that the Javanese lunar calendar does not have any impact on the Indonesian stock returns, but does affect the investors' risk aversion level. This study has proven that, in terms of risk aversion, investors' behavior in Indonesia is influenced by superstition.
Abstrak:Dalam pengambilan keputusan, seorang investor sangat mungkin berdasarkan takhayul dan keyakinan umum. Sebenarnya, Indonesia memiliki sistem kalender khusus yang disebut kalender lunar Jawa. Kalender Jawa berisi beberapa hari khusus karena kesakralannya seperti "Kamis Wage" dan "Jum'at Kliwon". Jumat Kliwon sering dianggap sebagai yang paling seram, sama dengan dengan Friday the 13th yang ada dalam budaya Barat. Penelitian ini berupaya mengkaji dampak dari hari-hari yang sacral tersebut terhadap return saham. Dengan menerapkan GARCH-M, temuan menunjukkan bahwa kalender lunar Jawa tidak memiliki dampak pada return saham Indonesia, tetapi berpengaruh pada tingkat penghindaran risiko investor. Penelitian ini telah membuktikan bahwa, dalam hal penghindaran risiko, perilaku investor di Indonesia dipengaruhi oleh takhayul.