The people hold political power in a democracy.
The answer is "<span>Culture of increasing customer value seems to be a sustained advantage".
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Zappos intentionally makes and fortifies its corporate culture. The workplace accommodated representatives won't draw in each activity searcher and it's not for each worker. In any case, the general population who fit the corporate culture flourish working for Zappos.
I believe the answer is <span> the social exchange theory
</span><span> the social exchange theory is based on the assumption that all people are individualistic in nature.
</span>This theory believes that human only choose to interact with another human only if the benefit from interacting with that other human surpass the cost to interact with him. (which explains the reason some people choose to marry old -rich individuals despite negative perception that will be labeled to them)
I'd say either railroads or wagon trains because airplanes and steamboats are not land travel and wagon trains are a vehicle and railroads are a thing they ride on to guide them