1. MultifactorModels : An Overview
FactorModels of Security Returns
ri = E(ri) + Ui
= E(ri) + mi + ei
r : 실현된 수익률 (Announcement)
E(r) : 예상하였던 기대수익률 (Expected part)
U : 예상하지 못했던 부분 (Surprise)
m : 체계적 위험 (Systematic Risk)
e : 비체계적 위험 (Unsystematic Risk)
FactorModels of Security Returns
[ single-factormodel ]
Factors on the Value of a Call and a Put Option
(1) Increasing the stock price increases call values and decreases put values.
(2) The effect of increasing the standard deviation is positive and pronounced
for both puts and calls
(3) Increasing the risk-free rate has a positive impact on call values and a negative impact on put values
(4) For both puts a
- G마켓의 사례를 통해 살펴 본 E-Business Model
Ⅰ. 서론
E-Business는 ‘인터넷을 전략적 도구로 활용하여 수익 창출이나 원가 절감을 달성하고자 하는 비즈니스’로 정의된다. 그러한 E-Business의 트렌드 중 하나는 ‘중간상의 변혁’이다. 인터넷이 지역
factors. Therefore, we try to validate the research on the basis of Stimulus-Organism-Response model through survey.
As a result of behavioral decision research, psychological factors play an important role in decision-making. Namely, in spite of the same external stimuli, users show different reaction to stimuli according to his experience or knowledge etc. Therefore, in the research, we try to
German beer industry is the presence of a strong tradition and culture of enjoying beer in the country.
Local breweries have played an important role in German beer industry for last three centuries.
These family-owned breweries have had cash asset problems for long years.
For many centuries, beer has had a vital place in the German diet.
There is a huge diversification in the marke