Economic bubbles occur when prices trending sharply upward spur positive, rather than negative, feedback.
如果价格急剧上行引起的是正面而非负面反馈，就会产生经济泡沫。
Price Trends
原声例句
新视野大学英语第三版读写教程（第三册）
纽约时报 (New York Times)
Compounding the bad news, a core measure of inflation that strips out gas and food to get a sense of underlying price trends accelerated more than forecast.
雪上加霜的是，一项衡量通胀的核心指标（剔除了汽油和食品价格，旨在了解潜在价格趋势）的增长速度超过了预期。
TED演讲（视频版） 2023年9月合集
And if you're worried that it looks like this price trend is leveling off, don't be.
如果您担心价格趋势似乎正在趋于平稳，请不要担心。
TED-Ed（视频版）
To identify undervalued stocks, they may investigate a company's business operations, analyze its financial statements, observe price trends, or use algorithms. Passive investors, by contrast, put their faith in the long term " weighing machine" aspect of the market.
为了识别被低估的股票， 他们可能会调查公司的业务运营、 分析其财务报表、观察价格趋势或使用算法。 相比之下， 被动投资者相信市场的长期“ 称重机” 方面。
中文百科
通货膨胀 Inflation
（重定向自Price Trends）
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通货膨胀（英语：inflation，在**简称通膨，大陆为通胀）本意为货币流通数量增加，但也指向物价水准在某一时期内，连续性地以相当的幅度上涨，也就是物价上升的现象，或直接指物价上涨。「通货」意指流通的货币，通货膨胀指货币发行数量上升，而物价上涨是因需求增加或供给减少，两者关联为货币发行数量上升投入消费，「太多的货币追逐太少的商品」而使得物价上涨，而现在人们经常直接使用「通货膨胀」一词来表示「物价上升」的现象。而货币发行数量上升，不一定使物价上升，因为可能尚未投入消费，或是被更多的商品（服务）生产或科技进步所抵消，而某些情况，比如说，若新发行的货币是流向生产端扩充产能，反而可能造成供过于求，物价反而会下跌，形成货币发行数量增加但物价却下跌，与常识相悖的经济现象。
英语百科
Inflation 通货膨胀
（重定向自Price Trends）
In economics, inflation is a sustained increase in the general price level of goods and services in an economy over a period of time.
When the price level rises, each unit of currency buys fewer goods and services. Consequently, inflation reflects a reduction in the purchasing power per unit of money – a loss of real value in the medium of exchange and unit of account within the economy. A chief measure of price inflation is the inflation rate, the annualized percentage change in a general price index, usually the consumer price index, over time. The opposite of inflation is deflation.