|
臨沂翻譯公司關鍵字：Income of the farmers of the policy variables is due to the sensitivity analysis to achieve the strategic objective of increasing farmers' income could be considered in the policy (or variables) many different types, in order to select a more effective policy or policy combination, through analysis of these policies (variable ) the effect of changes in farmers' income the size of the impact of econometric analysis. Some variables even if a significant policy change, causing variation in farmers 'income is small, we call the sensitivity of its small farmers' income. On the contrary, the great sensitivity. Income of the farmers identified the size of the sensitivity of each variable is simple: the extraction of agricultural policy decision-making model to a variable increase or decrease of 1% (other variables constant), then calculate the effect of the program's rate of change of farmers' income. That farmers 'income sensitivity of a policy variable = change in farmers' income effect of a policy variable rate ÷ rate of change. Sensitivity to distinguish between large and small sensitivity to the policy variables with the purpose of decision-making
Time to focus on the sensitivity of large variables.Second, the agricultural policy variables on the income of the farmers to achieve the objective of the measurement results
Income of the farmers in this paper the sensitivity of the analysis of various policy variables in three categories were selected seven indicators, the specific results in Table 1.
Table 1, the policy variables affect farmers' income dataOne, A representative from the net income the first industrial production index, B for crop yield index, C is agricultural price index, D means the price index of agricultural production, E on behalf of agricultural workers in every one hundred and secondary level the above index, F for various agricultural tax index, G for supporting rural production costs and operating expenses of the agricultural index, H stands for agriculture 科技三項費 with index.
Source: from Dr. Ye Tanglin paper "under the World Trade Organization rules to protect our agricultural policy research," Table 4-10, the Chinese Academy of Agricultural Sciences, June 2004
1, the income of the farmers and the policy variables of the curve fittingBy curve fitting the data in Table 1, we can conclude that formula (1).
log2A =- 3.47671 +0.85455 log2B +0.27455 log2C +0.39557 log2D +0.04030 log2E +0.17839 log2F-0.42691log2G +0.11981 log2H (R2 = 0.8424) ... ... .... (1)
2, the farmers' income policy variables on the sensitivity of the calculatedAccording to the formula (1) results, we can calculate the income of the farmers of the policy variable sensitivity (elasticity), the specific calculation process and the results are as follows:
Elog2B = (log2A)% ÷ (log2B)% = 0.85455 × log2100.14 ÷ log2103.56 = 0.8484 (2001 data)Elog2C = (log2A)% ÷ (log2C)% = 0.27455 × log2101.2 ÷ log2103.56 = 0.2732 (2001 data)Elog2D = (log2A)% ÷ (log2D)% = 0.39557 × log299.1 ÷ log2103.56 = 0.3918 (2001 data)Elog2E = (log2A)% ÷ (log2E)% = 0.04030 × log2113.85 ÷ log2103.56 = 0.0411 (2001 data)Elog2F = (log2A)% ÷ (log2F)% = 0.17839 × log2103.52 ÷ log2103.56 = 0.1784 (2001 data)Elog2G = (log2A)% ÷ (log2G)% =- 0.42691 × log2119.7 ÷ log2103.56 =- 0.4402 (2001 data)Elog2H = (log2A)% ÷ (log2H)% = 0.11981 × log2105.98 ÷ log2103.56 = 0.1204 (2001 data)
|