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4.2 Empirical Results
4.2.1
Correlation Analysis
It is often necessary to examine the relationship between two or more financial
variables. There are many ways to examine how sets of data are related. So this study
uses the correlation analysis to test the relationship between
the variables in each
model.
The correlation coefficient is a measure of how two data series are closely
related. In particular, the correlation coefficient measures
the direction and extent of
linear association between two variables. A correlation coefficient can have a
maximum value of 1 and a minimum value of -1. The correlation cannot exceed 1 in
absolute value. A correlation coefficient greater than 0 indicates a positive linear
association between the two variables: When one variable increases (decreases), the
other also tends to increase (decrease). A correlation coefficient less than 0 indicate a
negative linear association between the two variables: When
one variable increases
(decreases), the other also tends to decrease (increase). A correlation coefficient of 0
indicates no linear relation between the two variables. The closer the coefficient is to
either -1 or 1, the stronger the correlation between the two variables (Emrah, 2009).
Table 6 is a correlation matrix of selected macroeconomic factors and the
banking industry stock return (R).
From the table, we can see that INF and EX has
negative relationship, and the coefficient is -0.274795,
it means that there is weak
correlation between them. And INF and MS have a negative relationship, and the
coefficient is -0.042590, also is a weak correlation between them.
And INF and INT
also have a negative relationship, and the coefficient is -0.088381, also is a weak
correlation. And EX and
MS has a positive relationship, and the coefficient is
0.218778, also is a weak correlation. And EX and INT also has a positive relationship,
and the coefficient is 0.084616, also is a weak correlation.
And MS and INT have a
negative relationship, and the coefficient is -0.308027, also is a weak correlation. The
result shows that these four factors can be together in the same model.