After the initial public offering, who gains money from subsequent sales?

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

ghana achieved independence peacefully, while algeria gained independence through an armed struggle.

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."