Theoretical and experimental literature have provided mixed insights on the ability of financial markets to perfectly aggregate private information into asset prices. We conduct an experiment designed benchmark aggregation in markets. In our lab experiment, we randomly assign subjects different institutional environments, either a market or Becker–DeGroot–Marschak mechanism. find evidence that ...

A lot of natural language processing problems need to encode the text sequence as a fix-length vector, which usually involves an aggregation process combining representations all words, such pooling or self-attention. However, these widely used approaches do not take higher-order relationships among words into consideration. Hence we propose new way obtaining weights, called eigen-centrality Mo...