Application of economic statistics and estimation methods in this book
| Questions | Methods | Conclusions | |
|---|---|---|---|
| Changes in the market share of major tea-producing countries in the world from 1860 to 1925 | Statistics based on multiple data | Before the mid-19th century, Chinese tea monopolized the market. At the end of the 19th century, Indian tea and Ceylon tea were dominated in Britain, while Japanese tea was dominated in the United States. In 1920, Chinese tea basically withdrew from the world market | |
| Quantity of tea exported from Guangdong to the United States from 1838 to 1843 | Statistics based on US Treasury records | Americans prefered green tea more, and they loved high-quality small leaf black tea most | |
| Weight of tea purchased by Shanxi merchants | Statistics based on multiple data | When buy 300 cases of tea, weight between 18,000–24,000 jin | |
| The length of the tea route from Wuyi Mountain to Kyakhta by Shanxi merchants | Taking the map as a reference, the actual distance was calculated and compared with the historical data | The longest was 9940.5 li | |
| The business performance of tea gangs | Total cost of 300 cases of tea | C = c1 + c2 + c3 = p × q + p × j × f × q + (a × m + b × n) × d | 2463.06–3282.93 Liang |
| Profit margin of 300 cases of tea | I = S-C, I* = I/S | 68.62–68.63% | |
| Cost profit margin of 300 cases of tea | I* = I/C | 218.63–218.74% | |
| The inflow of counterfeit tea in the U.S. from 1826 to 1832 | Using the known data, the polynomial fitting of the data is carried out through the fitting toolbox “cftool” in Matlab 7.0 software, and the relationship between the known data and the yearwas fitted for 1–4 times respectively. Then the best model was selected to calculate all the tea imports, and the difference was calculated through the actual recorded value corresponding to table 3–2 | Counterfeit tea accounted for a large proportion of the total tea imports in the United States. In 1829, counterfeit tea reached the maximum, which was 18.38 times of real tea. The inflow of counterfeit tea fluctuated greatly | |
| Rewards of tea merchants selling counterfeit tea | Calculated based on the consumption demand curve of the United States, the marginal and average cost curve of genuine and counterfeit tea, and the marginal income curve, etc | When the average cost of selling counterfeit tea was 1/3 of that of selling real tea, the profit of the former was higher than that of the latter if the seller selled the same quantity of (Q) tea | |
| Transportation cost of tea | From Xingcun to Guangzhou | According to the freight recorded in historical materials, the average freight cost was converted and multiplied by the total kilometers recorded in historical materials | The freight cost per mile was 3.1 Wen, and the total freight was 9230.585 wen |
| Xingcun to Zhangjiakou via Henan | The freight cost per mile was 4.8 Wen, and the total freight was 10566.1 Wen | ||
| Xingcun to Tianjin via Shanghai | There were three main routes: one was 2,180 miles, 4.8 Wen per load per mile; the second was 3,020 miles, 3.1 Wen per load per mile; the third was 1,860 kilometers, 1.5 Wen per load per mile | ||
| Per capita consumption of brick tea in Tibet in Qing Dynasty | According to statistics from the National Bureau of Statistics in 1954, the population of Tibet in 1890 was calculated, and the amount of tea recorded by A. De Rosthorn was used to calculate the quantity per capita | 5.13 jin per capita per year, and severely in short supply | |
| Questions | Methods | Conclusions | |
|---|---|---|---|
| Changes in the market share of major tea-producing countries in the world from 1860 to 1925 | Statistics based on multiple data | Before the mid-19th century, Chinese tea monopolized the market. At the end of the 19th century, Indian tea and Ceylon tea were dominated in Britain, while Japanese tea was dominated in the United States. In 1920, Chinese tea basically withdrew from the world market | |
| Quantity of tea exported from Guangdong to the United States from 1838 to 1843 | Statistics based on US Treasury records | Americans prefered green tea more, and they loved high-quality small leaf black tea most | |
| Weight of tea purchased by Shanxi merchants | Statistics based on multiple data | When buy 300 cases of tea, weight between 18,000–24,000 jin | |
| The length of the tea route from Wuyi Mountain to | Taking the map as a reference, the actual distance was calculated and compared with the historical data | The longest was 9940.5 li | |
| The business performance of tea gangs | Total cost of 300 cases of tea | 2463.06–3282.93 Liang | |
| Profit margin of 300 cases of tea | 68.62–68.63% | ||
| Cost profit margin of 300 cases of tea | 218.63–218.74% | ||
| The inflow of counterfeit tea in the U.S. from 1826 to 1832 | Using the known data, the polynomial fitting of the data is carried out through the fitting toolbox “cftool” in Matlab 7.0 software, and the relationship between the known data and the yearwas fitted for 1–4 times respectively. Then the best model was selected to calculate all the tea imports, and the difference was calculated through the actual recorded value corresponding to table 3–2 | Counterfeit tea accounted for a large proportion of the total tea imports in the United States. In 1829, counterfeit tea reached the maximum, which was 18.38 times of real tea. The inflow of counterfeit tea fluctuated greatly | |
| Rewards of tea merchants selling counterfeit tea | Calculated based on the consumption demand curve of the United States, the marginal and average cost curve of genuine and counterfeit tea, and the marginal income curve, etc | When the average cost of selling counterfeit tea was 1/3 of that of selling real tea, the profit of the former was higher than that of the latter if the seller selled the same quantity of (Q) tea | |
| Transportation cost of tea | From Xingcun to Guangzhou | According to the freight recorded in historical materials, the average freight cost was converted and multiplied by the total kilometers recorded in historical materials | The freight cost per mile was 3.1 Wen, and the total freight was 9230.585 wen |
| Xingcun to Zhangjiakou via Henan | The freight cost per mile was 4.8 Wen, and the total freight was 10566.1 Wen | ||
| Xingcun to Tianjin via Shanghai | There were three main routes: one was 2,180 miles, 4.8 Wen per load per mile; the second was 3,020 miles, 3.1 Wen per load per mile; the third was 1,860 kilometers, 1.5 Wen per load per mile | ||
| Per capita consumption of brick tea in Tibet in Qing Dynasty | According to statistics from the National Bureau of Statistics in 1954, the population of Tibet in 1890 was calculated, and the amount of tea recorded by A. De Rosthorn was used to calculate the quantity per capita | 5.13 jin per capita per year, and severely in short supply | |