Submitted by Gustavo Pereira (gustavo.cicco@fgvmail.br) on 2015-06-22T20:12:33Z No. of bitstreams: 1 dissertacao-final.pdf: 563562 bytes, checksum: d73ee22a77a43ed9ca60e77b0a5359cb (MD5) / Approved for entry into archive by BRUNA BARROS (bruna.barros@fgv.br) on 2015-07-07T12:25:40Z (GMT) No. of bitstreams: 1 dissertacao-final.pdf: 563562 bytes, checksum: d73ee22a77a43ed9ca60e77b0a5359cb (MD5) / Approved for entry into archive by Marcia Bacha (marcia.bacha@fgv.br) on 2015-07-09T12:30:56Z (GMT) No. of bitstreams: 1 dissertacao-final.pdf: 563562 bytes, checksum: d73ee22a77a43ed9ca60e77b0a5359cb (MD5) / Made available in DSpace on 2015-07-09T12:31:06Z (GMT). No. of bitstreams: 1 dissertacao-final.pdf: 563562 bytes, checksum: d73ee22a77a43ed9ca60e77b0a5359cb (MD5) Previous issue date: 2015-04-27 / When disagreement in economic models occurs due to different interpretations of public signals, the level of ``marketwide disagreement'' not necessarily decreases upon the arrival of a public signal. We propose an empirical assessment of this phenomenon. By using a measure of attention based on Google Trends, we show that an increase in the attention allocated by the market to a company is associated to a significant increase in disagreement about it. / Quando a discordância em modelos econômicas ocorre devido a interpreta- ções diferentes de sinais públicos, o nível de 'discordância de mercado' não necessariamente diminui com a chegada de um sinal público. Nós propomos uma avaliação empírica desse fenômeno. Usando uma medidade de atenção baseada no Google Trends, mostramos que um aumento na atenção alocada pelo mercado a uma company está associada a um aumento significativo da discordância sobre ela.

Submitted by Fernando Ferreira da Luz Barbosa (fernando.luz@outlook.com) on 2015-07-20T19:07:10Z No. of bitstreams: 1 Fernando Ferreira da Luz Barbosa.pdf: 927554 bytes, checksum: e29a7f5ad6e3cdd15bb6adafc98a4cb6 (MD5) / Approved for entry into archive by BRUNA BARROS (bruna.barros@fgv.br) on 2015-07-21T12:46:06Z (GMT) No. of bitstreams: 1 Fernando Ferreira da Luz Barbosa.pdf: 927554 bytes, checksum: e29a7f5ad6e3cdd15bb6adafc98a4cb6 (MD5) / Approved for entry into archive by Maria Almeida (maria.socorro@fgv.br) on 2015-07-30T19:08:34Z (GMT) No. of bitstreams: 1 Fernando Ferreira da Luz Barbosa.pdf: 927554 bytes, checksum: e29a7f5ad6e3cdd15bb6adafc98a4cb6 (MD5) / Made available in DSpace on 2015-07-30T19:08:57Z (GMT). No. of bitstreams: 1 Fernando Ferreira da Luz Barbosa.pdf: 927554 bytes, checksum: e29a7f5ad6e3cdd15bb6adafc98a4cb6 (MD5) Previous issue date: 2015-04-27 / Disagreement between economists is a well know fact. However, it took a long time for this concept to be incorporated in economic models. In this survey, we review the consequences and insights provided by recent models. Since disagreement between market agents can be generated through different hypotheses, the main differences between them are highlighted. Finally, this work concludes with a short review of nowcasting using google trends, emphasizing advances connecting both literatures.