Why do some goods and ideas travel more easily than others? (AP world history)

Some ideas are easily caught on by other cultures while others are not. Not all cultures and people will agree to certain ideas or religions. The universal ideas and innovations such as saddles and stirrups will catch on faster due to the fact that everyone needs them. The same goes for goods. If the items are extraneous, unnecessary, or even a burden, then the goods will not be used. With goods you must also consider the weight and the use of the good. Missionaries, merchants, and others can only spread what people want. People in other places might NEED the stuff from one place in another place. More accepted. Easily to put into another society.

Trade made between the regions and provinces made goods and ideas travel faster than the others.

Explanation:

Trading has made the changes in the dynamics of living in humans. Human has started exploring the world for want of knowledge and ideas. So, they have started trading by way of exchanging goods and commodities. In the process their culture, inventions and ideas are also shared with the local people for more benefits.

One such invention is paper, which was invented by Chinese and later through trade, the invention is shared across countries. This kind of innovations and ideas will have both positive and negative effects on the society, region and across countries.