Without knowing the specific passage, it's hard for me to provide evidence from it. However, in general, during the years 1200 to 1450 CE, there were major changes in transportation, commercial technology, credit and money systems, and state interactions.
a) One example of these changes is the development of maritime trade networks, like the Indian Ocean trade. This allowed for better transportation and technology, enabling long-distance trade and stronger economic connections between different regions.
b) Another change was the rise of banking systems and the use of paper money. This made it easier for people to handle credit and conduct financial transactions. It supported the growth of economies during this time.
c) Additionally, the expansion of the Mongol Empire played a role in shaping state interactions in the economy. The Mongols created a secure environment for trade, which encouraged economic exchanges between different states and civilizations.
While I can't refer to specific evidence from the passage, these historical developments from 1200 to 1450 CE provide a general understanding of how transportation, credit systems, and state interactions influenced the economy during that time.