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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

The private memory of aggregate shocks

Luz, Vitor Farinha 07 August 2009 (has links)
Submitted by Daniella Santos (daniella.santos@fgv.br) on 2009-08-07T12:36:21Z No. of bitstreams: 1 Dissertacao_Vitor_Farinha_Luz.pdf: 490918 bytes, checksum: aa416ee14b87b54afbe7a5e0ec7e8088 (MD5) / Approved for entry into archive by Antoanne Pontes(antoanne.pontes@fgv.br) on 2009-08-07T17:38:24Z (GMT) No. of bitstreams: 1 Dissertacao_Vitor_Farinha_Luz.pdf: 490918 bytes, checksum: aa416ee14b87b54afbe7a5e0ec7e8088 (MD5) / Made available in DSpace on 2009-08-07T17:38:24Z (GMT). No. of bitstreams: 1 Dissertacao_Vitor_Farinha_Luz.pdf: 490918 bytes, checksum: aa416ee14b87b54afbe7a5e0ec7e8088 (MD5) / In economies characterized by both aggregate and privately observed idiosyn- cratic risks we show that constrained e¢cient allocations may display non-trivial dependence on aggregate shocks. Using two period versions of both a Atkeson and Lucas (1992) preference shock model and a dynamic Mirrlees (1971) economy we show that constrained optimal allocations have memory with respect to aggre- gate shocks despite their being i.i.d. and independent from idiosyncratic shocks, whenever the latter are not perfectly persistent. The fact that shocks may have per- sistent e¤ects on allocations despite their public and i.i.d nature, was rst shown by Phelan (1994) in a dynamic moral hazard economy with CARA preference. Our numerical simulations indicate that these are not knife-edge results: there is a monotonic relationship between private persistence and aggregate memory in many di¤erent environments. / Em economias caracterizadas por choques agregados e privados, mostramos que a alocação ótima restrita pode depender de forma não-trivial dos choques agregados. Usando versões dos modelos de Atkeson e Lucas (1992) e Mirrlees (1971) de dois períodos, é mostrado que a alocação ótima apresenta memória com relação aos choques agregados mesmo eles sendo i.i.d. e independentes dos choques individuais, quando esses últimos choques não são totalmente persistentes. O fato de os choques terem efeitos persistentes na alocação mesmo sendo informação pública, foi primeiramente apresentado em Phelan (1994). Nossas simulações numéricas indicam que esse não é um resultado pontual: existe uma relação contínua entre persistência de tipos privados e memória do choque agregado.

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