<s>
The	O
Sznajd	B-Algorithm
model	I-Algorithm
or	O
United	O
we	O
stand	O
,	O
divided	O
we	O
fall	O
(	O
USDF	O
)	O
model	O
is	O
a	O
sociophysics	B-General_Concept
model	O
introduced	O
in	O
2000	O
to	O
gain	O
fundamental	O
understanding	O
about	O
opinion	O
dynamics	O
.	O
</s>
<s>
The	O
Sznajd	B-Algorithm
model	I-Algorithm
implements	O
a	O
phenomenon	O
called	O
social	O
validation	O
and	O
thus	O
extends	O
the	O
Ising	O
spin	O
model	O
.	O
</s>
<s>
Furthermore	O
,	O
Monte	B-Algorithm
Carlo	I-Algorithm
simulations	I-Algorithm
showed	O
that	O
these	O
simple	O
rules	O
lead	O
to	O
complicated	O
dynamics	O
,	O
in	O
particular	O
to	O
a	O
power	O
law	O
in	O
the	O
decision	O
time	O
distribution	O
with	O
an	O
exponent	O
of	O
-1.5	O
.	O
</s>
<s>
Fields	O
as	O
econophysics	O
or	O
sociophysics	B-General_Concept
formed	O
,	O
and	O
many	O
quantitative	O
analysts	O
in	O
finance	O
are	O
physicists	O
.	O
</s>
<s>
The	O
Sznajd	B-Algorithm
model	I-Algorithm
is	O
a	O
simple	O
but	O
yet	O
important	O
variation	O
of	O
prototypical	O
Ising	O
system	O
.	O
</s>
<s>
The	O
Sznajd	B-Algorithm
model	I-Algorithm
belongs	O
to	O
the	O
class	O
of	O
binary-state	O
dynamics	O
on	O
a	O
networks	O
also	O
referred	O
to	O
as	O
Boolean	O
networks	O
.	O
</s>
<s>
This	O
class	O
of	O
systems	O
includes	O
the	O
Ising	O
model	O
,	O
the	O
voter	B-Algorithm
model	I-Algorithm
and	O
the	O
q-voter	O
model	O
,	O
the	O
Bass	O
diffusion	O
model	O
,	O
threshold	O
models	O
and	O
others	O
.	O
</s>
<s>
The	O
Sznajd	B-Algorithm
model	I-Algorithm
can	O
be	O
applied	O
to	O
various	O
fields	O
:	O
</s>
