medium enterprises (UKM) and renowned retail
brands.
Although it is under the same holding company,
Blanja.com does not have an auction feature like
eBay. Users who want to be registered as a seller must
have a business license from the government, and they
can only sell new things. In theory these conditions
can complicate Blanja.com in embracing sellers and
competing with competitors. However Blanja.com
implement these rules on security grounds. Although
the trust in e-commerce continues to grow, there are
sellers who have intention to deceive buyers in the
online marketplace. Blanja.com filter system can
provide a sense of security to buyers, and can help
this site to attract the attention of buyers who want to
be more careful in transacting in the online shop.
The results of research (Ardyanto, 2015), (Naomi,
2015), (SARI, ) shows that ease and ease of using
e-commerce have a significant effect on online
purchasing decisions.
The purpose of this research is to examine and
analyze the effect of the ease and confidence using
the e-commerce on purchasing decisions online in the
online shop Blanja.com.
2 LITERATURE REVIEW
2.1 Definition of Purchase Decision
According to (Philip and Amstrong, 2008) purchasing
decisions are the stage in the buyer’s decision-making
process where the consumer will actually buy.
2.2 Purchase Decision Making Process
• Problem Recognition, is a process where
consumers will buy a product as a solution to the
problems that are facing.
• Information Search, is an advanced process of
the introduction the problem, where the consumer
will be motivated to find information to solve
problems that are facing him. The information
search process can be derived from the memory
(internal) and based on the experience of others
(external).
• Alternative Evaluation, is a continuation of
the information search process, after which
the consumers get a wide range of consumer
information will evaluate the alternatives- any
strategic alternative will be selected to address the
problems it faces.
• Purchase Decision, is an advanced process of
evaluating alternatives, where the consumers will
make the purchase decision of a desired product.
• Post-Purchase Evaluation, is a process after a
consumer to buy a product, where consumers will
evaluate whether the product is in accordance
with her wishes. In this process, there can be
customer satisfaction and dissatisfaction. The
stages of decision-making above can be described
as follows:
2.3 Factors Affecting Purchasing
Decisions
There are five internal factors relevant to the
purchasing decision process, are:
• Product Motivation. Is an encouragement
contained in a person in order to achieve a certain
goal.
• Perception. Is the result of the interpretation or
perceptions of an event that it faces based on the
information and experience to those events.
• Attitude Formation. Is an assessment in a person,
which reflects a person’s likes or dislikes for a
thing.
• Integration. Is a combination of attitude and
action. Integration is a response to the position
taken. Feelings like to encourage someone to buy
a product, otherwise feelings of dislike will make
a person not to buy a product.
According to Engel (2000: 285) “needs
activated eventually be expressed in purchasing
and consumption behavior and in the form of two
types of benefits are1) utilitarian benefits and, 2)
hedonic benefits/experience”.
According to Kotler (2000: 157) “confidence
is a descriptive thought that someone has about
something. This confidence may be based on true
knowledge, opinion or trust and may raise emotions
and may not”.
2.4 Purchase Decision Online
Meanwhile, according to Turban et al. (2004) “online
consumer behavior model based on the factors that
influence and the process of attitude and behavior” are
described as follows:
The model above can be explained as follows:
• Buying consumer decisions include: purpose,
purchase and repurchase.
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