We study a model of electoral accountability and selection whereby heterogeneous voters aggregate incumbent politician's performance data into personalized signals through paying limited attention. Extreme voters' exhibit an own-party bias, which hampers their ability to discern the good bad performances incumbent. While this effect alone would undermine selection, there is countervailing stemm...

Global operations, such as global average pooling, are widely used in top-performance image restorers. They aggregate information from input features along entire spatial dimensions but behave differently during training and inference restoration tasks: they based on different regions, namely the cropped patches (from images) full-resolution images. This paper revisits aggregation finds that im...

Individuals with identical preferences each receive a signal about the unknown state of the world and separately decide upon a utilitymaximizing recommendation on the basis of that signal. The group’s decision maximizes the common utility function based on perfect pooling of individual information. With no restrictions on the information structure, the individual recommendations place no constr...