Page(s) 306-307 11.2. What were the major shifts in the political landscape of the western Old World web between 200 and 800 CE? Fill in the blanks to complete the following passage about Roman economic and military decline. For many years, Rome's economy had flourished because of its commercial economy supported by two parts. Through - , farmers could choose to raise the crops that grew best in their environment, and craftsmen could hone particular skills. Through - , Romans could use money to pay for what they needed or wanted at markets. However, as - increased across the empire, the economy shrank, and less money flowed into the empire. Without enough - , Rome could not afford to pay enough for soldiers to defend its borders, which left it vulnerable to attack. revenueagreementdisorderorderdiversificationdebtexchangespecialization