investing more at risk. This risk is called systematic
risk. The systematic risk of increasing inflation is
followed by decreasing the exchange rate and interest
rate (Adisetiawan And Ahmadi, 2107). This
condition causes investors to transfer their
investments to other places that are considered safe.
This is due to the number of hot money in Indonesia.
In addition to the crisis, the economic policy also
impacts the investment return. Especially if the
economic policy is made by developed countries,
then it will impact on investment returns not only in
developed countries but also in developing and weak
countries. This impact can be both positive and
negative. This impact can be perceived directly and
indirectly to investors. This is due to the strong
influence of the developed countries to global
economic development. It is also proposed by
Triyono and Rubiyanto (2017), which states there are
mature country capital market relations represented
by the Americans that have an emerging influence of
Indonesia. Therefore, it is needed to analysis to prove
the strong economic influence on developing
economies through trading in stock indices. The
indices of shares are used, representing developed
countries or mature markets and emerging markets.
This analysis proves that the adverse effects of the
economy not only originate in developing countries
but also come from developed countries. This
analysis is different because in this study, using more
stock index in developed and developing countries
with a fairly long period of time. In addition, the
selected index already represents developed and
developing economic forms and represents the
general conditions of the region or continent.
Therefore, this research can prove the contagion
effect theory.
2 LITERATURE REVIEW
Capital market is a place where prospective investors
can meet to execute transactions. Capital market
based on the forms is divided into three, namely weak
form, semi-strong, and Stong. This market form has
an integral relationship with one another. There are a
few terms that can explain the chain effect of the
phenomenon transmission in the economic field.
Those terms are:
2.1 Domino Effect
Domino effect is a chain reaction that due to changes
in the economic field that causes changes in areas that
have similar characteristics. These changes are
propagating and continuously.
2.2 Ripple Effect
The ripple effect is like a wave that propagated into a
wider area. This can be modeled after a phenomenon
that occurs in a country that is transmitted to
neighboring countries.
2.3 Contagion Effect Theory
The contagion effect is a result of a financial crisis
that occurs in a country and affects other countries
(Trihadmini, 2011). This infectious effect has
occurred several times in this decade. Generally,
countries will be influenced when there is an
extraordinary phenomenon such as the economic
crisis, changing state status such as the exit of certain
countries in areas such as Brexit, which occurred in
2016. Contagion effects are defined in three types
(Hsien, 2012), i.e., basic, limited, and very limited.
The contagion effect of this basic type generally
occurs when there is good and bad information. This
impact will affect the economy between countries as
there will be shocks. However, this shock is not
necessarily caused by a crisis but can be caused by
other information such as an increase in interest rate.
The contagion effect that is limited meant that
changes or shocks that occur in a country would be
related to other countries. The other countries will get
positive and negative impacts. These impacts
generally occur beyond some fundamental channels.
Contagion effects that are very limited meant that the
impact which is gotten by the other countries is
limited only when the shocks occur and does not
affect the normal economic conditions.
2.4 Factors That Cause Contagion
Affect
The contagion effect is not only limited to the
consequences of financial turmoil that occur but can
also be caused by attitudes and fundamentals.
Investor behavior triggers volatility that has an impact
on diversification and hedging decisions (Alikhanov,
2013). The contagion effect caused by fundamental
factors divided into three types: they are common
causes, trade channels, and devaluative competition,
as well as financial channels.
The contagion effect caused by common causes
recently occurred when the Fed announced the
increase in the interest rate of the treasury bond
becomes 3.13%. It triggers capital flow from different