Speed of Adjustment of Securities’ Prices in the SET 50 Index to Macroeconomic Information

Authors

  • Tassanai Srangtrakul Sritidpeak Co., Ltd
  • Sirikiat Ratshisanti Department of finance and banking, Faculty of business administration, Chiang Mai University
  • Chanon Chingchayanarak Department of finance and banking, Faculty of business administration, Chiang Mai University

Keywords:

speed of adjustment, price delay, macroeconomic information

Abstract

This study aims to examine the speed of securities’ price adjustment to macroeconomic information by using the data of SET 50 daily stock prices that comprises of 39 stocks that have complete daily price history from January 2005 to December 2014. In addition, the study uses the officially announced macroeconomic data, consumer price index, monthly policy interest rate, and quarterly gross domestic product. A multiple regression approach used in this study followed that of Chiang, Nelling, and Tan (2008)

This study finds that the stock prices in SET 50 index are not immediately affected by macroeconomic information. Furthermore, the speeds of stock price adjustment of different industries vary significantly. In addition, the prices that are affected by good news can significantly change more slowly than those by bad news. Lastly, the study finds the current stock prices in SET 50 index can be adjusted to macroeconomic information more rapidly than those in the past.

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Published

2022-03-27

How to Cite

Srangtrakul, T., Ratshisanti, S., & Chingchayanarak, C. (2022). Speed of Adjustment of Securities’ Prices in the SET 50 Index to Macroeconomic Information. Siam University Journal of Business Administration, 20(35), 41–54. retrieved from https://so07.tci-thaijo.org/index.php/sujba/article/view/820

Issue

Section

Research Articles