Abstract
In this thesis, we managed to figure out the cause of the magnitude of price decline getting smaller successfully at Taipei flower market which is organized as sequential Dutch auctions and attended by two different types of buyers: A- and B-type buyers. The main outcome of this thesis is that the magnitude of price decline is closely related to the purchasing timings of these two types of buyers. If the purchasing timings of these two types of buyers are the same (and the bidding behaviors of these two types of buyers are identical to each other), the magnitude of price decline will be constant throughout the auctions as van den Berg G. J. et al. (2001)’s expected. If not the same (and the bidding behaviors of these two types of buyers are not identical to each other), the magnitude of price decline will get smaller successfully as 申維剛 (2010)’s expected.