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Seasonal Inverse Demand System for Taiwan Vegetables
|關鍵字:||蔬菜需求;逆需求體系;季節性;Vegetables Demand;Inverse Demand System;Seasonal||Project:||應用經濟論叢, Issue 104, Page(s) 229-258||摘要:||
The study is focused on establishing the Taiwanese vegetables inverse demand system estimation model taking into account seasonal variation effects. The settings of the model will be adjusted according to the verification obtained from documentary evidence. The seasonal variation effects lead to an inverse demand function and inverse demand system restrictions. The study seeks to obtain different seasonal vegetables and an intersecting price flexibility coefficient. This research plans to make use of the constant flexibility inverse demand system (Huang, 1991) as the basis, and with indirect setting effectiveness functions, passing through first-order differential approximation leading to the inverse demand system. Within the inverse demand system, add seasonal variation regulatory items. At the same time add every parameter that has restrictive requirements to the seasonal variation requirements. Adopt seemingly unrelated regression estimation for the Taiwanese vegetables inverse demand system. The result show that: scale flexibility, uncompensated price flexibility, and compensated price flexibility of each vegetable category were negative, which were consistent with the theoretical requirement. The signs of uncompensated cross-price flexibility, and compensated cross-price flexibility were mixed, which revealed that there existed the complement and substitute relationships between different category of vegetables.
|Appears in Collections:||應用經濟論叢 第104期|
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