12th October 2021

 Today, I first of all learned the Japan's food scandal including the Shiro Koibito, Snow Brand Milk, Meat Hope, McDonald experiment and the Hankyu hotel scandal. I found these food scandals unbelievable as these foods such as McDonalds are eaten quite often in my dairylife and because I had the thought that Japan's food were safe.

After talking about the fodd scandal, the topic changed to World System Theory created by  Emmanuel Wallerstein. I learned that countries are classifyed into 3 different groups, Core country which has money and high power, Semi Periphery country which has average money and power,  Periphery country with poor money and low power. 

Besides the World System Theory, Mr.Paterson taught us the Kondratiev wave. Once I heard this word, I couldn't understand it's meaning at all. However, as I searched it up , I found that it was a Wave with a cycle of 50~60 years, which have been seen in movements such as prices, interest rates, and production volumes since the 18th century.