ABSTRACT

Pu'er tea, as the geographical indication product of Yunnan province. The price of Pu'er tea will affect the healthy development of the tea industry and further affect the economic development of Yunnan province. According to the characteristics of Pu'er tea price and current price detection methods, this paper uses four products as sample data and selects the GSADF method to detect the price bubble of Pu'er tea. The results showed: (1) During the period from 12 June 2012 to 24 November 2019, there were price bubbles in this year Dayi 7542 raw tea, this year Dayi 7572 ripe tea and 2011 Dayi 7572 ripe tea, while there were no price bubbles in 2011 Dayi 7542 raw tea; (2) There were four bubbles periods in this year Dayi 7542 raw tea and 2011 year Dayi 7572 ripe tea, while there were three bubbles periods in this year Dayi 7572 ripe tea. Through analysis, it can be known policy adjustment, sales way and method, climate, labour cost, the publishing of new products and other factors are the important impacts on the price of the Pu'er tea.

抽象的

普er茶，作为云南省的地理标志产品。普'茶的价格将影响茶产业的健康发展，并进一步影响云南省的经济发展。根据普'茶价格的特点和目前的价格检测方法，以四种产品为样本数据，选择GSADF方法检测普tea茶的价格泡沫。结果表明：（1）2012年6月12日至2019年11月24日，本年度大邑7542生茶，本年度大邑7572成熟茶和2011大邑7572成熟茶均出现价格泡沫，而没有价格泡沫。在2011年的大邑7542生茶中；（2）今年的大邑7542生茶和2011年大邑7572生茶有四个泡沫时期，而今年的大邑7572成熟茶则经历了三个泡沫时期。通过分析，可以知道政策调整，销售方式和方式，气候，人工成本，新产品的发布等因素是对普'茶价格的重要影响。