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2.
P
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al
u
ate
p
r
o
d
u
cts,
m
ak
e
r
ec
o
m
m
e
n
d
atio
n
s
to
f
r
ien
d
s
an
d
ac
q
u
ain
tan
ce
s
s
h
ar
e
an
y
r
ec
en
t
bu
s
i
n
ess
e
x
p
er
ien
ce
th
r
o
u
g
h
s
o
cial
m
ed
ia.
T
h
e
r
esear
ch
w
ill
an
s
w
er
t
h
e
f
o
llo
w
i
n
g
q
u
e
s
tio
n
s
:
Do
es
So
cial
Me
d
ia
af
f
ec
t
co
n
s
u
m
er
d
ec
is
i
o
n
-
m
a
k
in
g
.
I
s
t
h
er
e
an
y
r
ela
ti
o
n
s
h
ip
b
et
w
ee
n
u
s
e
o
f
s
o
cial
m
ed
ia
a
n
d
r
ea
ch
i
n
g
o
u
t
to
m
o
r
e
cu
s
to
m
er
s
?
I
s
s
o
c
ial
m
ed
ia
ad
v
er
tis
i
n
g
b
ec
o
m
e
m
o
r
e
i
m
p
o
r
ta
n
t
th
a
n
tr
ad
itio
n
a
l
ad
v
er
tis
e
m
e
n
t
i
n
T
V
an
d
p
r
ess
.
3.
I
M
P
O
RT
ANCE O
F
RE
S
E
A
RCH
T
h
e
p
o
ten
tial
i
n
f
l
u
e
n
ce
t
h
a
t
s
o
cial
n
et
w
o
r
k
i
n
g
is
d
o
in
g
is
w
id
el
y
n
o
ted
,
an
d
i
s
g
r
o
w
i
n
g
ex
p
o
n
en
t
iall
y
,
as
it
lead
s
to
c
o
n
n
ec
t
m
o
r
e
p
eo
p
le
to
th
e
n
e
t
w
o
r
k
.
Us
u
all
y
,
p
eo
p
le
ten
d
t
o
talk
ab
o
u
t
t
h
in
g
s
th
at
attr
ac
t
t
h
eir
atten
tio
n
.
A
s
t
h
e
n
u
m
b
er
o
f
p
eo
p
le
w
it
h
i
n
th
e
n
et
w
o
r
k
g
r
o
w
s
,
it
w
i
ll
attr
ac
t
m
o
r
e
p
eo
p
le,
an
d
th
u
s
i
n
cr
ea
s
i
n
g
co
m
m
u
n
icatio
n
.
So
cial
Net
w
o
r
k
i
n
g
b
ec
a
m
e
W
o
r
d
-
of
-
Mo
u
th
;
it
ca
n
ca
u
s
e
h
u
g
e
ef
f
ec
t
o
n
p
r
o
d
u
ct
co
n
n
ec
tio
n
,
p
r
o
d
u
ct
a
w
ar
e
n
ess
,
a
n
d
d
ec
is
io
n
-
m
a
k
i
n
g
.
T
h
er
e
is
a
r
elatio
n
s
h
ip
b
etw
ee
n
in
te
g
r
atio
n
o
f
s
o
cial
m
e
d
ia
r
eg
ar
d
in
g
b
r
an
d
a
w
ar
e
n
ess
,
s
er
v
ice
d
ev
e
lo
p
m
e
n
t,
an
d
b
r
an
d
en
g
ag
e
m
e
n
t.
M
an
y
b
u
s
i
n
es
s
es
o
b
s
er
v
ed
an
i
m
p
r
o
v
e
in
s
ales,
i
f
s
o
cial
m
ed
ia
w
er
e
in
v
o
l
v
ed
.
[
1
]
also
s
tate
t
h
at
t
h
er
e
h
as
b
e
en
li
m
ited
r
esear
c
h
to
m
ea
s
u
r
e
th
e
i
m
p
ac
t
o
f
t
h
e
u
s
e
o
f
s
o
cial
m
ed
ia
o
n
a
b
u
s
i
n
ess
.
T
h
e
li
m
i
ted
r
esear
ch
av
ai
l
ab
le
is
m
ai
n
l
y
in
th
e
b
u
s
i
n
es
s
ar
ea
o
f
m
ar
k
et
in
g
.
B
u
s
i
n
ess
e
s
h
a
v
e
b
ee
n
f
o
u
n
d
t
o
b
e
s
lo
w
er
th
a
n
co
n
s
u
m
er
s
t
o
ad
o
p
t
s
o
cial
m
ed
ia
ar
e.
T
h
is
is
f
o
u
n
d
to
b
e
th
e
ca
s
e,
d
esp
ite
t
h
e
h
ig
h
g
r
o
w
th
in
co
n
s
u
m
er
s
u
s
i
n
g
s
o
cial
m
e
d
ia
an
d
th
e
id
en
ti
f
ied
ad
v
an
ta
g
es
o
f
u
s
i
n
g
s
o
cia
l
m
ed
ia
e.
g
.
s
tr
en
g
t
h
en
in
g
o
f
cu
s
to
m
er
r
elatio
n
s
h
ip
s
[
2
]
.
Ma
j
o
r
s
o
cial
m
ed
ia
s
ite
s
ar
e
Face
b
o
o
k
,
T
w
i
tter
,
I
n
s
ta
g
r
a
m
,
Yo
u
T
u
b
e,
L
i
n
k
ed
I
n
,
Go
o
g
le+
,
an
d
Ot
h
er
s
.
4.
L
I
T
E
R
AT
U
RE
R
E
VI
E
W
[
3
]
in
tr
o
d
u
ce
d
“
T
h
e
r
o
le
o
f
s
o
cial
n
et
w
o
r
k
s
i
n
in
f
l
u
en
c
in
g
t
h
e
p
u
r
ch
as
in
g
d
ec
is
io
n
o
f
t
h
e
co
n
s
u
m
er
v
ia
t
h
e
I
n
ter
n
et”;
t
h
is
s
t
u
d
y
m
ea
s
u
r
es
t
h
e
r
o
le
o
f
s
o
cial
n
et
w
o
r
k
s
to
i
n
f
lu
e
n
ce
s
t
u
d
en
ts
p
u
r
ch
asi
n
g
d
ec
is
io
n
m
ak
in
g
a
t
A
l
-
Qa
s
s
i
m
Un
iv
e
r
s
it
y
,
th
e
s
t
u
d
y
u
s
ed
t
h
e
a
n
al
y
tical
Me
t
h
o
d
o
lo
g
y
to
g
et
to
th
e
r
esu
lts
.
T
h
e
r
esear
ch
er
d
ev
elo
p
ed
a
tech
n
i
q
u
e
to
m
ea
s
u
r
e
th
e
r
elat
io
n
s
h
i
p
b
et
w
ee
n
all
v
ar
iab
les
i
n
t
h
e
s
tu
d
y
.
A
s
a
m
p
le
o
f
(
5
2
4
)
s
tu
d
en
t
s
w
as c
h
o
s
en
f
r
o
m
th
e
U
n
i
v
er
s
it
y
o
f
Al
-
Qass
i
m
.
T
h
e
s
tu
d
y
b
ased
o
n
th
e
d
e
s
cr
ip
tiv
e
a
n
al
y
tical
ap
p
r
o
ac
h
b
y
r
ev
ie
w
i
n
g
t
h
e
liter
at
u
r
e
o
n
th
e
th
eo
r
etica
l
ad
m
in
i
s
tr
ati
v
e
w
eb
2
.
0
,
s
o
cial
n
et
w
o
r
k
s
an
d
o
n
lin
e
co
n
s
u
m
er
p
u
r
ch
asi
n
g
b
eh
a
v
io
r
.
T
h
e
r
esu
lt
s
i
n
d
icate
d
th
a
t
th
e
s
o
cial
n
et
w
o
r
k
i
n
g
d
i
m
e
n
s
i
o
n
s
(
e
x
ch
a
n
g
e
o
f
in
f
o
r
m
a
tio
n
,
ev
al
u
atio
n
o
f
p
r
o
d
u
ct)
p
o
s
s
es
s
an
i
m
p
ac
t
o
n
th
e
p
u
r
ch
asi
n
g
d
ec
is
io
n
,
w
h
ile
th
e
r
esu
lts
s
h
o
w
ed
th
e
ab
s
en
ce
o
f
in
f
lu
e
n
tia
l
d
i
m
e
n
s
io
n
o
n
c
o
n
s
u
m
er
s
u
p
p
o
r
t
as
o
n
e
o
f
th
e
d
i
m
en
s
io
n
s
o
f
s
o
cia
l n
et
w
o
r
k
i
n
g
in
i
n
f
lu
e
n
ci
n
g
th
e
p
u
r
ch
asi
n
g
d
ec
i
s
io
n
.
No
s
ig
n
if
ican
t
d
i
f
f
er
e
n
ce
s
b
et
w
ee
n
m
ale
s
an
d
f
e
m
ale
s
(
s
ex
an
d
ag
e
v
ar
iab
les),
u
s
in
g
s
o
ci
al
n
et
w
o
r
k
s
(
ex
ch
a
n
g
e
o
f
i
n
f
o
r
m
a
tio
n
,
e
v
a
lu
ate
th
e
p
r
o
d
u
ct,
co
n
s
u
m
er
s
u
p
p
o
r
t)
d
u
e
to
th
e
s
ex
a
n
d
ag
e
v
ar
iab
le.
I
n
lig
h
t
o
f
th
e
s
e
f
i
n
d
i
n
g
s
,
th
e
s
t
u
d
y
m
ad
e
a
s
er
ies
o
f
r
ec
o
m
m
e
n
d
atio
n
s
.
T
h
e
m
o
s
t
i
m
p
o
r
tan
t:
th
e
n
ee
d
f
o
r
th
e
m
a
n
ag
er
s
,
m
ar
k
eter
s
,
an
d
w
eb
d
esi
g
n
er
s
to
u
n
d
er
s
ta
n
d
w
eb
2
.
0
f
ea
t
u
r
es
an
d
t
h
e
ad
v
an
ta
g
e
s
o
f
f
e
r
ed
th
r
o
u
g
h
s
o
cial
n
et
w
o
r
k
s
.
I
n
ad
d
itio
n
,
to
u
n
d
er
s
tan
d
t
h
e
ad
v
an
tag
e
s
a
n
d
f
u
n
ct
io
n
s
a
n
d
to
o
ls
o
f
s
o
cial
co
m
m
u
n
icatio
n
a
n
d
k
n
o
w
i
n
g
h
o
w
to
ap
p
l
y
t
h
e
m
e
f
f
icien
tl
y
a
n
d
ef
f
ec
ti
v
el
y
,
an
d
ch
o
o
s
e
an
y
o
f
t
h
e
ar
ea
s
o
f
s
o
cial
n
et
w
o
r
k
i
n
g
.
I
t
n
ee
d
s
to
b
e
i
m
p
r
o
v
ed
an
d
th
e
n
u
s
e
t
h
e
ap
p
r
o
p
r
iate
s
o
cial
n
etw
o
r
k
i
n
g
to
o
l.
[
5
]
p
er
f
o
r
m
ed
a
r
ese
ar
c
h
o
n
“Fac
eb
o
o
k
A
d
v
er
ti
s
in
g
:
T
h
e
So
cial
C
o
m
m
er
ce
L
i
f
eli
n
e
f
o
r
S
m
all
B
u
s
i
n
ess
e
s
”
to
u
n
d
er
s
tan
d
h
o
w
co
n
s
u
m
er
s
i
n
ter
ac
t
w
it
h
s
o
cial
m
ed
ia
—
esp
ec
iall
y
Fac
eb
o
o
k
-
d
u
r
in
g
th
e
r
esear
ch
an
d
in
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s
to
r
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s
ta
g
es
o
f
th
eir
s
h
o
p
p
in
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x
p
er
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.
T
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1
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f
f
er
s
ar
e
m
o
s
t
li
k
el
y
t
o
in
f
l
u
en
ce
t
h
e
m
to
m
ak
e
a
n
i
n
-
s
to
r
e
p
u
r
ch
ase
f
r
o
m
a
s
m
all
b
u
s
in
e
s
s
.
8
0
%
o
f
th
e
r
e
s
p
o
n
d
en
t
s
ar
e
m
o
r
e
lik
e
l
y
to
p
u
r
ch
ase
p
r
o
d
u
cts
o
r
s
er
v
ices
in
-
s
to
r
e
f
r
o
m
a
s
m
al
l
b
u
s
i
n
ess
i
f
th
er
e
ar
e
p
o
s
itiv
e
cu
s
to
m
er
r
ev
ie
w
s
/r
ati
n
g
s
o
n
t
h
e
co
m
p
an
y
's
w
eb
s
ite,
m
o
b
il
e
s
ite
o
r
Face
b
o
o
k
p
ag
e.
3
8
%
o
f
r
esp
o
n
d
en
ts
b
eliev
e
Face
b
o
o
k
o
f
f
er
s
th
at
ca
n
b
e
r
e
d
ee
m
ed
in
lo
ca
l
s
to
r
es
ar
e
m
o
s
t
lik
el
y
to
in
f
lu
e
n
ce
t
h
e
m
to
v
is
i
t th
e
w
e
b
s
ite
o
f
a
lo
ca
l/s
m
all
b
u
s
in
e
s
s
.
R
esta
u
r
an
t
s
(
3
8
p
er
ce
n
t)
ta
k
e
th
e
lead
in
t
h
e
t
y
p
e
o
f
b
u
s
in
ess
w
i
th
t
h
e
h
ig
h
es
t
le
v
el
o
f
Face
b
o
o
k
en
g
a
g
e
m
en
t.
Me
an
w
h
ile
,
b
ea
u
t
y
/s
p
a
(
1
4
p
er
ce
n
t)
an
d
ed
u
ca
tio
n
/tra
in
in
g
(
1
4
p
er
ce
n
t)
tie
f
o
r
s
ec
o
n
d
p
lace
.
5.
SO
CIA
L
NE
T
WO
RK
S M
ARK
E
T
I
N
G
Ma
r
k
etin
g
t
h
r
o
u
g
h
t
h
e
s
o
cial
n
et
w
o
r
k
s
,
ca
n
b
e
d
e
f
in
ed
a
s
th
e
u
s
e
o
f
s
o
cial
n
et
w
o
r
k
s
f
o
r
s
ales
,
m
ar
k
et
in
g
,
p
u
b
lic
r
elatio
n
s
o
r
cu
s
to
m
er
s
er
v
ice.
T
h
ese
to
o
ls
allo
w
c
u
s
to
m
er
s
to
in
ter
ac
t
w
i
th
p
r
o
d
u
ce
r
s
r
ath
er
th
an
a
o
n
e
-
w
a
y
co
m
m
u
n
icatio
n
,
as
it
allo
w
s
co
m
p
an
ie
s
to
o
p
en
co
n
n
ec
t
io
n
ch
a
n
n
els
w
i
th
th
e
cu
s
to
m
er
s
.
T
h
e
p
o
p
u
lar
it
y
o
f
s
o
cial
n
et
w
o
r
k
s
g
r
o
w
i
n
g
s
tead
il
y
,
a
n
d
h
as
p
r
o
v
id
ed
b
u
s
in
e
s
s
e
s
w
ith
u
n
p
r
ec
ed
en
ted
o
p
p
o
r
tu
n
itie
s
to
d
eliv
er
th
eir
m
ar
k
et
in
g
m
ess
a
g
es to
t
h
eir
c
u
s
to
m
er
s
d
ir
ec
tl
y
.
P
r
o
d
u
ctio
n
a
n
d
s
er
v
ices
r
ea
li
ze
d
th
e
i
m
p
o
r
tan
ce
o
f
s
o
cial
n
et
w
o
r
k
i
n
g
as
a
m
ea
n
s
to
p
r
o
m
o
te
t
h
eir
p
r
o
d
u
cts
an
d
s
er
v
ices,
li
s
te
n
i
n
g
to
c
u
s
to
m
er
s
i
n
s
o
cial
n
et
w
o
r
k
s
,
as
w
ell
a
s
i
n
co
m
m
u
n
icati
o
n
an
d
i
n
ter
ac
tio
n
w
it
h
t
h
eir
cu
s
to
m
er
s
,
an
d
ex
c
h
an
g
e
in
f
o
r
m
a
tio
n
,
s
u
ch
as
v
i
d
eo
s
,
p
h
o
to
s
,
tex
ts
an
d
n
e
w
s
.
C
o
m
p
an
ies
ca
n
also
u
s
e
s
o
cial
n
et
w
o
r
k
in
g
to
i
m
p
r
o
v
e
p
u
b
lic
r
ela
tio
n
s
,
s
u
p
p
o
r
t
ch
an
n
el,
a
n
d
to
i
m
p
r
o
v
e
th
e
p
o
s
s
ib
ilit
ies
f
o
r
t
h
e
s
ale
s
d
ep
ar
t
m
e
n
t to
d
eliv
er
th
e
h
ig
h
es
t v
al
u
e
to
its
c
u
s
to
m
er
s
.
So
cial
n
et
w
o
r
k
in
g
p
r
o
v
id
es
a
s
tr
o
n
g
en
v
ir
o
n
m
e
n
t
f
o
r
u
s
er
s
to
s
h
ar
e
an
d
e
x
ch
a
n
g
e
v
ie
w
s
an
d
ex
p
er
ien
ce
s
ab
o
u
t
t
h
i
n
g
s
th
at
m
at
ter
m
o
s
t.
U
s
er
s
e
m
p
lo
y
s
o
cial
n
e
t
w
o
r
k
i
n
g
f
o
r
v
ar
io
u
s
r
ea
s
o
n
s
,
s
u
c
h
a
s
bu
ild
in
g
a
m
en
ta
l
p
ictu
r
e,
ac
c
ess
to
i
n
f
o
r
m
atio
n
o
f
in
ter
est
an
d
en
ter
tai
n
m
en
t.
T
h
e
n
ee
d
to
b
elo
n
g
is
o
n
e
o
f
th
e
m
ai
n
d
r
iv
i
n
g
m
o
t
iv
e
s
to
p
ar
ticip
ate
in
a
s
o
cial
n
et
wo
r
k
,
w
h
ic
h
m
ak
e
it
p
r
o
m
i
n
e
n
t
at
th
o
s
e
o
f
o
t
h
er
tr
ad
itio
n
al
to
o
ls
s
u
c
h
as
c
h
at
r
o
o
m
s
,
e
m
ail,
f
o
r
u
m
s
,
an
d
ele
ctr
o
n
ic
p
u
b
lis
h
i
n
g
.
T
h
e
I
n
ter
n
et
an
d
m
o
b
ile
w
eb
b
ec
am
e
a
p
lace
t
h
at
p
eo
p
le’
s
o
p
in
io
n
s
ar
e
t
h
e
d
r
iv
i
n
g
f
o
r
ce
f
o
r
s
o
cial
an
d
co
m
m
er
cial
ar
g
u
m
e
n
t.
T
h
e
n
e
w
er
a
o
f
co
n
s
u
m
er
cu
l
tu
r
e,
m
o
s
tl
y
b
elo
n
g
to
t
h
e
I
n
ter
n
et
a
n
d
m
o
b
ile
w
eb
,
in
w
h
ic
h
t
h
e
p
o
w
er
s
h
i
f
ted
f
r
o
m
o
r
g
an
izatio
n
s
to
in
d
i
v
id
u
al
s
.
T
h
e
elec
tr
o
n
ic
co
n
s
u
m
er
b
eh
av
io
r
is
n
o
d
if
f
er
e
n
t
f
r
o
m
t
h
e
tr
ad
itio
n
al
co
n
s
u
m
er
.
I
n
b
o
th
ca
s
e
s
,
v
ar
io
u
s
ele
m
e
n
ts
,
s
u
ch
as
p
r
o
d
u
ct
p
r
esen
tatio
n
,
p
r
o
d
u
ct
h
an
d
lin
g
,
p
r
o
d
u
ct
q
u
alit
y
,
p
r
ice,
an
d
m
a
n
y
o
t
h
er
s
in
f
lu
e
n
ce
t
h
e
co
n
s
u
m
er
b
eh
a
v
io
r
.
T
h
e
o
n
ly
d
i
f
f
er
e
n
ce
is
th
a
t
th
e
I
n
ter
n
et
a
n
d
m
o
b
ile
w
eb
p
r
o
v
id
e
m
o
r
e
to
o
ls
to
p
er
f
o
r
m
t
h
e
f
o
llo
w
i
n
g
:
a.
Ma
r
k
etin
g
o
f
P
r
o
d
u
cts
&
Ser
v
ices
b.
On
li
n
e
s
ale
s
c.
C
o
n
n
ec
ti
n
g
w
i
th
c
u
s
to
m
er
s
an
d
s
u
p
p
lier
s
d.
B
r
an
d
s
u
p
p
o
r
t
e.
R
ed
u
ce
co
s
ts
f.
C
o
n
tact
b
u
s
i
n
es
s
es
6.
M
E
T
H
DO
L
O
G
Y
B
ased
o
n
th
e
th
eo
r
y
o
f
a
s
u
r
v
e
y
w
as
cr
ea
ted
w
i
th
q
u
es
tio
n
s
r
ele
v
a
n
t
to
h
o
w
I
n
ter
n
et
a
n
d
s
o
cia
l
m
ed
ia
ca
n
h
elp
co
m
p
an
ie
s
to
i
n
cr
ea
s
e
m
ar
k
et
in
g
a
n
d
s
ale
s
.
T
h
e
m
eth
o
d
o
lo
g
y
b
ased
o
n
q
u
an
titati
v
e
m
et
h
o
d
s
,
an
d
f
o
cu
s
in
g
o
n
n
u
m
er
ical
d
ata
[
6
]
.
T
h
e
r
esear
ch
er
tr
ies
to
f
in
d
a
r
ep
ea
ted
m
a
n
n
e
r
,
to
s
ee
if
th
er
e
is
r
elatio
n
s
h
ip
s
b
et
w
ee
n
d
i
f
f
er
en
t
v
ar
iab
le
s
.
Sin
ce
t
h
er
e
is
n
o
d
ata
in
th
is
r
esear
c
h
ab
o
u
t
h
o
w
co
m
p
a
n
ie
s
in
te
g
r
ate
s
o
cial
m
ed
ia
i
n
t
h
eir
o
r
g
an
izatio
n
,
it
w
as d
ec
id
ed
to
u
s
e
a
q
u
a
n
titati
v
e
m
eth
o
d
.
6
.
1
.
T
he
s
t
ud
y
v
a
ria
bles
:
T
h
e
in
d
ep
en
d
e
n
t
v
ar
iab
le:
s
o
cial
n
et
w
o
r
k
s
(
T
h
e
ex
c
h
an
g
e
o
f
i
n
f
o
r
m
atio
n
-
P
r
o
d
u
ct
R
atin
g
-
C
o
n
s
u
m
er
s
u
p
p
o
r
t)
.
T
h
e
d
ep
e
n
d
en
t
v
ar
iab
le:
co
n
s
u
m
er
in
te
n
t to
p
u
r
ch
ase.
6
.
2
.
P
a
rt
icipa
nt
s
elec
t
io
n:
I
n
th
i
s
r
esear
ch
,
a
r
an
d
o
m
p
a
r
ticip
an
t
w
as
u
s
ed
f
o
r
th
e
i
n
t
er
v
ie
w
s
a
n
d
ex
p
lai
n
th
e
q
u
e
s
tio
n
n
air
e,
w
h
ic
h
m
ea
n
s
th
a
t
m
o
s
t
o
f
t
h
e
in
ter
v
ie
w
ee
s
w
er
e
c
h
o
s
en
f
r
o
m
a
m
o
n
g
y
o
u
n
g
p
eo
p
le
b
et
w
e
en
ag
e
s
2
1
to
m
o
r
e
th
an
3
0
y
ea
r
s
,
s
i
m
p
le
r
an
d
o
m
s
a
m
p
li
n
g
,
an
d
ar
ea
s
a
m
p
li
n
g
.
Evaluation Warning : The document was created with Spire.PDF for Python.
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2502
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4752
Th
e
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flu
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f I
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7.
DATA AN
AL
Y
SE
S
T
h
e
s
u
r
v
e
y
w
a
s
h
an
d
led
to
(
1
0
8
)
Ku
w
ai
ti
a
n
d
n
o
n
-
K
u
w
ai
ti
(
5
4
m
ale,
5
4
f
e
m
ale)
,
d
i
v
id
ed
in
to
t
h
r
ee
g
r
o
u
p
s
(
2
1
to
2
5
,
2
6
–
3
0
,
m
o
r
e
th
an
3
0
)
in
a
ll
t
h
e
s
i
x
g
o
v
er
n
o
r
ates
o
f
K
u
w
ai
t.
E
i
g
h
t
q
u
esti
o
n
n
a
ir
e
r
es
u
lts
w
er
e
ex
cl
u
d
ed
f
o
r
lack
co
m
p
leten
e
s
s
an
d
s
u
itab
ilit
y
f
o
r
an
aly
s
is
,
b
r
in
g
i
n
g
t
h
e
to
tal
n
u
m
b
er
o
f
v
al
id
q
u
esti
o
n
n
a
ir
es (
1
0
0
)
.
Data
an
al
y
s
is
f
o
r
th
is
r
esear
c
h
is
to
o
b
tain
th
e
r
elat
io
n
s
h
ip
b
et
w
ee
n
s
o
cial
m
ed
ia
an
d
m
ar
k
etin
g
.
T
h
e
s
u
r
v
e
y
q
u
e
s
tio
n
s
ar
e
p
r
esen
ted
in
tab
les an
d
d
iag
r
a
m
s
i
n
t
h
e
A
p
p
en
d
i
x
.
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icate
s
t
h
a
t
8
7
%
o
f
r
esp
o
n
d
en
ts
h
a
v
e
to
s
u
r
f
s
o
c
ial
n
et
w
o
r
k
i
n
g
s
ites
to
i
n
cr
ea
s
e
th
eir
k
n
o
w
led
g
e
ab
o
u
t
t
h
e
p
r
o
d
u
cts
b
ef
o
r
e
g
o
in
g
o
v
er
th
e
p
o
in
t
s
o
f
s
ale.
j.
A
b
o
u
t
3
4
%
o
f
r
esp
o
n
d
en
t
s
w
er
e
u
s
in
g
s
o
cial
n
et
w
o
r
k
i
n
g
f
o
r
co
m
m
er
cial
r
ea
s
o
n
s
.
I
n
ad
d
itio
n
,
ar
o
u
n
d
8
3
%
s
aid
th
at
I
n
s
ta
g
r
a
m
o
v
er
co
m
e
m
o
s
t
o
f
th
e
o
th
er
s
o
cial
m
ed
ia
(
T
w
it
ter
,
Face
b
o
o
k
,
Yo
u
T
u
b
e,
etc.
)
,
an
d
it
is
v
er
y
i
m
p
o
r
tan
t
in
th
e
ir
d
ec
is
io
n
to
p
u
r
ch
ase
a
p
r
o
d
u
ct
in
s
to
r
es.
T
h
ey
ar
e
m
o
r
e
li
k
el
y
to
p
u
r
ch
ase
a
f
a
v
o
r
ite
ite
m
,
p
r
o
d
u
cts
o
r
s
er
v
ices
in
s
to
r
e
if
t
h
er
e
w
er
e
p
o
s
iti
v
e
cu
s
to
m
er
r
ev
ie
w
s
o
r
r
ati
n
g
s
o
n
t
h
e
s
o
cial
m
ed
ia
o
r
t
h
e
co
m
p
an
y
’
s
w
eb
s
ite.
P
r
o
d
u
ct
r
atin
g
in
s
o
m
e
s
o
cia
l
n
et
w
o
r
k
i
n
g
,
allo
w
s
co
n
s
u
m
e
r
s
to
ev
alu
ate
th
e
p
r
o
d
u
ct,
an
d
d
em
o
n
s
tr
ate
eit
h
er
th
e
y
p
r
ef
er
th
e
p
r
o
d
u
ct
o
r
n
o
t.
Pro
d
u
ct
r
atin
g
ev
alu
a
ted
o
n
a
s
ca
le
o
n
e
to
f
iv
e,
o
n
e
is
th
e
lo
w
e
s
t,
an
d
f
i
v
e
ar
e
th
e
h
ig
h
e
s
t,
w
h
ich
e
n
ab
les
a
n
ea
s
y
w
a
y
to
m
ea
s
u
r
e
h
o
w
s
u
cc
e
s
s
f
u
l
th
e
p
r
o
d
u
ct
i
s
.
P
r
o
d
u
ct
r
atin
g
s
ar
e
n
o
w
co
m
m
o
n
i
n
m
a
n
y
s
o
cial
m
ed
ia
s
ite
s
.
k.
A
r
o
u
n
d
2
3
%
o
f
r
esp
o
n
d
e
n
ts
d
o
n
o
t
tr
u
s
t
in
f
o
r
m
at
io
n
p
o
s
t
ed
o
n
s
o
cial
m
ed
ia,
an
d
7
7
%
tr
u
s
t
th
e
in
f
o
r
m
atio
n
to
ce
r
tai
n
ex
te
n
d
s
.
l.
A
r
o
u
n
d
8
7
% o
f
r
esp
o
n
d
en
ts
b
en
ef
ited
f
r
o
m
ad
v
er
ti
s
e
m
en
t
s
t
h
at
ap
p
ea
r
in
s
o
cial
m
ed
ia.
T
h
e
y
s
aid
th
at
p
r
o
m
o
tio
n
s
a
n
d
o
f
f
er
s
p
o
s
ted
b
y
s
m
all
b
u
s
i
n
es
s
o
n
s
o
cia
l
m
ed
ia,
s
o
m
et
i
m
e
s
b
etter
th
a
n
th
at
o
f
f
er
ed
f
r
o
m
t
h
e
p
o
in
t o
f
s
ales
.
9.
RE
CO
M
NDATI
O
N
T
o
p
r
o
m
o
te
p
r
o
d
u
cts
an
d
s
er
v
ices
i
n
s
o
cial
n
et
w
o
r
k
s
,
w
e
r
e
co
m
m
e
n
d
a
co
m
m
u
n
icat
io
n
m
ec
h
a
n
i
s
m
a
m
o
n
g
co
m
p
an
ies a
n
d
co
n
s
u
m
er
s
to
i
m
p
r
o
v
e
u
p
d
ated
s
u
p
p
o
r
t a
n
d
k
n
o
w
led
g
e.
T
h
e
ex
ec
u
ti
v
es
a
n
d
s
a
les
r
ep
r
esen
tat
iv
e
s
n
ee
d
to
u
n
d
er
s
ta
n
d
th
e
b
en
e
f
it
s
o
f
f
er
e
d
b
y
s
o
cial
n
et
w
o
r
k
s
,
an
d
u
n
d
er
s
tan
d
t
h
e
ad
v
a
n
tag
es,
f
u
n
ct
io
n
s
,
a
n
d
to
o
ls
o
f
s
o
cial
co
m
m
u
n
icatio
n
,
an
d
k
n
o
w
i
n
g
h
o
w
to
ap
p
l
y
th
e
m
e
f
f
ec
ti
v
el
y
an
d
ef
f
ic
ien
t
l
y
,
an
d
th
e
n
u
s
e
t
h
e
ap
p
r
o
p
r
iate
s
o
cial
n
et
w
o
r
k
i
n
g
to
o
l.
Evaluation Warning : The document was created with Spire.PDF for Python.
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Kee
p
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f
f
a
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r
ite
p
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d
u
ct
s
a
n
d
r
etailer
s
o
n
s
o
cial
n
et
w
o
r
k
s
,
co
n
s
u
m
er
s
ca
n
ac
ce
s
s
p
r
o
d
u
cts
d
etails
f
r
o
m
i
n
s
id
e
th
e
co
m
p
an
ies,
as
w
ell
a
s
r
ec
o
g
n
izi
n
g
o
f
n
e
w
p
r
o
d
u
cts,
an
d
a
v
ailab
le
s
a
les
a
n
d
p
r
o
m
o
tio
n
s
.
Me
d
iu
m
a
n
d
s
m
all
b
u
s
i
n
es
s
e
s
r
ea
lized
th
at
t
h
e
s
o
cial
n
et
w
o
r
k
i
n
g
h
e
lp
s
th
e
b
u
s
i
n
es
s
s
ec
to
r
o
n
m
ar
k
et
in
g
an
d
p
r
o
m
o
tio
n
o
f
p
r
o
d
u
cts
an
d
s
er
v
ices,
i
n
ad
d
itio
n
,
to
ac
h
iev
e
a
s
tr
o
n
g
c
o
m
m
u
n
icatio
n
w
i
th
ex
is
t
in
g
,
a
n
d
f
u
t
u
r
e
co
n
s
u
m
e
r
s
.
T
h
ese
co
m
p
an
ie
s
also
co
n
f
ir
m
ed
t
h
at
s
ales
i
m
p
r
o
v
ed
s
ig
n
i
f
ica
n
tl
y
i
f
t
h
e
y
in
ter
ac
t
w
it
h
t
h
e
p
ar
ticip
an
t
s
in
t
h
e
s
o
cial
n
et
w
o
r
k
s
o
n
a
d
ail
y
b
asis
.
Fu
r
t
h
er
m
o
r
e,
s
a
les
i
m
p
r
o
v
ed
,
a
f
ter
p
o
s
tin
g
r
esta
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r
an
t
m
e
n
u
s
,
th
e
y
r
ec
ei
v
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p
o
s
itiv
e
co
m
m
e
n
ts
o
n
th
e
m
ea
ls
t
h
at
th
e
y
h
a
v
e
r
eq
u
ested
.
T
h
e
n
ex
t
s
tu
d
y
w
ill co
v
er
t
h
is
p
o
in
t i
n
d
etail.
RE
F
E
R
E
NC
E
S
[1
]
F
isc
h
e
r,
E.
a
n
d
Re
u
b
e
r,
A
.
R.
(2
0
1
1
).
'
S
o
c
ial
in
tera
c
ti
o
n
v
ia
n
e
w
so
c
ial
m
e
d
ia:
(Ho
w
)
c
a
n
in
tera
c
ti
o
n
s
o
n
T
w
it
ter
a
ffe
c
t
e
ff
e
c
tu
a
l
th
in
k
in
g
a
n
d
b
e
h
a
v
io
r?
'
J
o
u
rn
a
l
o
f
Bu
si
n
e
ss
Ven
tu
r
in
g
,
2
6
p
p
.
1
-
1
8
.
[2
]
A
n
d
z
u
li
s,
J.
M
.
,
P
a
n
a
g
o
p
o
u
l
o
s,
N.
G
.
a
n
d
Ra
p
p
,
A
.
(2
0
1
2
)
'
A
R
e
v
ie
w
o
f
S
o
c
ial
M
e
d
ia
a
n
d
Im
p
li
c
a
ti
o
n
s
f
o
r
t
h
e
S
a
les
P
r
o
c
e
ss
.
'
J
o
u
rn
a
l
o
f
Per
so
n
a
l
S
e
ll
in
g
&
S
a
les
M
a
n
a
g
e
me
n
t
,
3
2
(
3
)
p
p
.
3
0
5
-
3
1
6
.
[3
]
A
b
d
e
l
-
q
a
d
e
r,
M
o
h
a
m
e
d
.
(2
0
1
5
).
t
h
e
ro
le
o
f
so
c
ial
n
e
tw
o
rk
s
in
i
n
f
lu
e
n
c
in
g
th
e
p
u
rc
h
a
sin
g
d
e
c
isio
n
o
f
th
e
c
o
n
su
m
e
r
v
ia t
h
e
In
tern
e
t,
th
e
J
o
r
d
a
n
ia
n
J
o
u
rn
a
l
o
f
Bu
si
n
e
ss
,
Vo
l.
1
1
,
No
.
1
,
2
0
1
5
.
[4
]
Bh
a
ra
d
w
a
j,
A
n
a
n
d
h
i.
El
S
a
wy
,
O
m
a
r
A
.
P
a
v
lo
u
,
P
a
u
l
A
.
V
e
n
k
a
tra
m
a
n
,
N.
(2
0
1
3
),
Dig
it
a
l
B
u
s
in
e
ss
S
trate
g
y
:
T
o
wa
rd
a
Ne
x
t
G
e
n
e
ra
ti
o
n
o
f
In
si
g
h
ts,
M
IS
Qu
a
rte
rly
Vo
l.
3
7
N
o
.
2
,
p
p
.
4
7
1
-
4
8
2
/Ju
n
e
2
0
1
3
.
[5
]
Bh
a
ll
a
,
Ra
g
in
i.
(2
0
1
5
).
F
a
c
e
b
o
o
k
A
d
v
e
rti
sin
g
:
T
h
e
S
o
c
ial
Co
m
m
e
rc
e
L
i
f
e
li
n
e
f
o
r
S
m
a
ll
Bu
sin
e
ss
e
s,
G
O
Dig
it
a
l,
ww
w
.
g
o
d
ig
it
a
lma
rk
e
ti
n
g
.
c
o
m
o
n
2
/0
9
/2
0
1
6
[6
]
Br
y
m
a
n
,
A
.
&
Be
ll
,
E.
(2
0
0
5
).
“
F
e
tag
se
k
o
n
o
m
isk
a
f
o
rs
k
n
in
g
s
m
e
to
d
e
r”
,
1
st
e
d
it
i
o
n
a
lm
,
S
w
e
d
e
n
:
L
ib
e
r
E
c
o
n
o
m
y
.
R.
A
ru
l
m
o
z
h
i
y
a
l
a
n
d
K.
Ba
sk
a
r
a
n
,
"
I
m
p
le
m
e
n
tatio
n
o
f
a
F
u
z
z
y
P
I
Co
n
tr
o
ll
e
r
f
o
r
S
p
e
e
d
Co
n
tro
l
o
f
In
d
u
c
ti
o
n
M
o
to
rs Us
i
n
g
F
P
G
A
,
"
J
o
u
rn
a
l
o
f
P
o
we
r E
lec
tro
n
ics
,
v
o
l
.
1
0
,
p
p
.
6
5
-
7
1
,
2
0
1
0
.
B
I
O
G
RAP
H
I
E
S
O
F
AUTH
O
RS
Kh
a
led
A
b
d
u
lk
a
re
e
m
A
len
e
z
i
r
e
c
e
iv
e
d
h
is
b
a
c
h
e
lo
r
d
e
g
re
e
f
ro
m
Ku
w
a
it
Un
iv
e
rsit
y
in
a
p
p
li
e
d
sta
ti
stics
in
1
9
8
7
a
n
d
m
a
ste
r
d
e
g
re
e
in
m
a
n
a
g
e
m
e
n
t
s
y
ste
m
f
ro
m
G
u
lf
Un
iv
e
rsit
y
–
Ba
h
ra
in
in
2
0
1
0
.
He
re
c
e
iv
e
d
h
is
P
h
D
d
e
g
re
e
in
c
o
m
p
u
ter
sc
ien
c
e
f
ro
m
In
t
e
rn
a
ti
o
n
a
l
Isla
m
ic
Un
iv
e
rsit
y
M
a
la
y
sia
(IIUM
)
in
2
0
1
6
.
He
is
w
o
rk
in
g
a
t
C
e
n
tral
Ag
e
n
c
y
fo
r
In
f
o
rm
a
ti
o
n
T
e
c
h
n
o
lo
g
y
-
Ku
w
a
it
.
His res
e
a
r
c
h
in
tere
sts in
c
lu
d
e
se
c
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tern
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