Definition: In this task, a passage will be given and the goal is to identify an event from the passage. An event is defined as a single word representing something that happened, is happening, or may happen. An event can be factual or hypothetical, positive or negative, certain or uncertain. While most events are based on verbs, an event can also be based on a noun (ex. storm, snow, rainfall) or a copula verb (is, was, been, etc.). The event must not be a pronoun or an adjective. For noun events with multiple words, use the last word in the phrase as event.
Input: Passage: PROGRAM TRADING is being curbed by more securities firms, but big institutional investors are expected to continue the practice, further roiling the stock market. Bowing to criticism, Bear Stearns, Morgan Stanley and Oppenheimer joined PaineWebber in suspending stock-index arbitrage trading for their own accounts.

criticism