Original link: https://headsalon.org/archives/9047.html
【2022-01-30】
@新浪财经【Prices are soaring! #美国turkey bacon up 30%# #美国一个苹果卖9元#]
@InquilineX: The per capita GDP and median disposable income of the United States are about 6 times that of China, so it makes sense to divide the nominal price of American goods by 6 and compare the price with similar domestic goods. For example, Yuan Bo said An apple in China is 9 yuan, which is equivalent to selling 1.5 yuan in China.
@whigzhou: According to you, is it true that the whole point of income growth is to offset price increases?
@tertio: This is about psychological feelings, nothing else involved
@whigzhou: *so it makes sense to…*, this is negating any other possible meanings, rather than emphasizing a specific meaning
@whigzhou: Even if the subjective feelings about price changes are specifically considered, the *income ratio method* is a very bad method. A subjective impact that may be caused by a rise in the price of consumer goods can have more appropriate indicators, such as:
1) The relative range of change, if the price of apples suddenly rises five times in a short period of time, it is natural to make you feel *become too expensive*,
2) More pertinently, the impact on the budget structure,
In addition to the impact of changes based on recent price memory, the subjective feeling of rising prices of consumer goods can actually be attributed to the impact on the budget structure, that is, the squeeze effect on other parts of the budget caused by price increases. To evaluate the impact of this to the extent you have to take into account the peculiarities of the current budget structure,
For example, taking individuals with the median income as an example, the annual income of people in country A is 500, and that of people in country B is 100. This does not mean that the price of a certain consumer product must be five times higher to make people in country A feel the same *too expensive*, because the two The Engel coefficients of different countries are different. Assuming that the Engel coefficients are 0.2 and 0.4 respectively, then their food budgets are 100 and 40 respectively, and the ratio is half smaller than the income ratio.
Moreover, the subdivision structure of food will also be different. Wealthier people may allocate a larger part to restaurants, alcohol, more expensive seafood and organic food, etc., so that the budget gap left for supermarket goods will be even greater. small
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