Abstract:
Stock market is important to the success of any nation’s economy and certainly to expand and
diversify its economy. If a stock market is shown to be inefficient, the public tends to distrust it and
the market may collapse due to eroding investments. In addition if a stock market is shown to be
inefficient, it may not provide an important mechanism for valuing financial assets and it may not
facilitate for the important economic service of efficiently allocating investible funds among the
possible investment project within the economy. Therefore it is the responsibility of the regulatory
bodies in any economy to implement proper strategies and policies to develop capital market of
the country. Accordingly tax impositions and concessions for different sectors through government
budget are being often used to formulate strategies in order to develop efficient capital market.
The purpose of this research is to identify the impact of the announcement of Sri Lankan Government
budget on the Colombo Stock Exchange (CSE). This study investigates the behavior of CSE price
indices in respect of prior and post period budget announcement information.
The data set includes All Share Price Index (ASPI) and Milanka Price Index (MPI) of all listed
companies for the period of 2005 to 2009. The researchers have considered prior and post period
of 15 trading dates based on the first speech of budget announcement date to the Parliament. The
event study method has been selected for the purpose of data analysis.
The results indicate that the downward trend in ASPI and Milanka price indices in respect of budget
announcement period, both prior and post. But it was noted that an upward trend in ASPI and MPI
for the year 2007. The results of this study support to make a conclusion that, continuous tax
impositions had led to downward trend in ASPI and MPI. However, upward trend in ASPI and MPI
for the year 2007 was observed due to significant portion of tax concessions and exemptions from
the government budget 2006 in certain sectors such as manufacturing, investment, construction,
telecommunication etc. Therefore we can conclude that continuous imposition of taxes cause for
downward trend in price indices and significant tax concessions and exemptions for upward trend
in price indices in CSE.
