To evaluate the public opinion expression of occupying Wall Street on Twitter, this paper aims to investigate time series of tweet stream, search query, media coverage, stock market, and opinion polls. The findings reveals that: first, the dynamic change of total tweet stream, retweets, discussions, and hashtags are parallel; second, tweet stream and search query are strongly correlated, while ...

There are many scenarios where we would like agents to report their observations or expertise in a truthful way. Game-theoretic principles can be used to provide incentives to do so. I survey several approaches to eliciting truthful information, in particular scoring rules, peer prediction methods and opinion polls, and discuss possible applications.

Election forecasts have traditionally been based on representative polls, in which randomly sampled individuals are asked for whom they intend to vote. While representative polling has historically proven to be quite effective, it comes at considerable financial and time costs. Moreover, as response rates have declined over the past several decades, the statistical benefits of representative sa...

The dominant methodology for short-term forecasting of electoral outcomes uses trial-heat polls, where respondents report their current electoral preferences (not their election-day predictions). Election markets, where self-selected participants trade shares of candidates at prices predictive of election-day results, provide an alternative method that often produces more accurate forecasts. Co...

IC ER SPTIVES On contentious issues such as gun control, where advocacy groups on both sides claim to have the weight of public opinion behind them, polling can help clarify what Americans really think. Three decades of polling have painted a clear picture of public opinion about gun control. These polls show that public support for the regulation of firearms is strong, deep, and widespread. La...