MEASURING OLIGOPOLISTIC DISTORTION IN THE UK FROZEN POTATO PRODUCT SECTOR: A CALIBRATION MODELLING APPROACH
使用校准模型和推测变差分析，比较1980-1992年英国和荷兰冷冻马铃薯行业的竞争水平，发现英国寡头垄断导致进口增加、消费者剩余下降和福利损失。
This paper compares competition levels in the UK and Dutch frozen potato product sectors over the period 1980 to 1992 using a calibration model and conjectural variation analysis. We also obtain estimates of the trade and welfare effects of oligopolistic distortion in the UK frozen potato product sector. Results show that oligopolistic distortion in the UK raises Dutch imports by 25,700 tonnes in 1991/92 and by an annual average over the whole period of 13,000 tonnes. Further, the deadweight loss due to oligopolistic distortion in the UK is increasing to a level of £32.1m in 1991/92 which comprises of a fall in UK consumers' surplus of £170.2m and increases in UK and Dutch processors' profit of £131.9m and £6.2m respectively. We conclude that the trade and welfare costs of the UK sector's oligopolistic behaviour are high and increasing.