The economy you described in your question is called a market economy. It has free markets and the production of goods and services are determined by the consumers.
        
             
        
        
        
The Berlin Blockade (1948–49) was the first major crisis of the Cold War. With the victory of the Communist side in the Chinese Civil War and the outbreak of the Korean War (1950–53), the conflict expanded.
 
        
             
        
        
        
After Saladin captured Aleppo he completed the conquest of Muslim Syria but he failed to take over the Zengid stronghold of Mosul.
Some benefits the Crusaders had even though they were not successful were that they increased the authority of the king and kings passed taxes to pay for the crusades.
The way the economic system changed in Europe is the the population began rising, technology began changing, more farming improvements, and trade began improving.
Hope this Helps!!
 
        
             
        
        
        
Your answer is A.) Lincoln won 40% of the popular vote. Lincoln actually won the election with less than 40% of the popular vote.