This article deals with the increasing computerization of the financial markets and the consequences of such process on our ability to collect information about financial prices. The concept of information is at the heart of financial economics simply because this notion is a precondition for all investments. Since financial prices characterize an agreement on a transaction between two counterparties, they understandably became a key informational indicator for decision. This article will analyse the increasing computerization of financial sphere by discussing the recent emergence of what is called a “flash crash” and its impact on the traditional ways of collecting information in finance (technical analysis, fundamental analysis and statistical approach). I argue that the growing computerization of financial markets generated a “hyper-reality” in which financial prices do not refer to “something” anymore implying a revision of our usual way of defining/using the notion of information.

中文翻译：

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计算机化时代的金融信息论文

本文涉及金融市场日益计算机化以及此类过程对我们收集金融价格信息能力的影响。信息的概念是金融经济学的核心，因为这个概念是所有投资的先决条件。由于金融价格是两个交易对手之间交易协议的特征，因此可以理解它们成为决策的关键信息指标。本文将通过讨论最近出现的所谓“闪电崩盘”及其对传统金融信息收集方式（技术分析、基本面分析和统计方法）的影响来分析金融领域日益计算机化。