
Thomas Fischer
Docent

Concave consumption functions -A closed-form characterization
Författare
Summary, in English
This paper presents a closed-form expression for the concave consumption function in a model with liquidity constraints and spanned labor and capital income risk. Local Marginal Propensities to Consume (MPCs) and buffer-stock savings are analytically characterized allowing to identify its determinants. Solutions for common examples of the Hyperbolic Absolute Risk Aversion (HARA) class are presented and compared. Relative to the deterministic scenario, income risk makes consumption functions more concave and forces impatient individuals to form buffer-stock savings.
Avdelning/ar
- Nationalekonomiska institutionen
Publiceringsår
2024
Språk
Engelska
Sidor
1-46
Dokumenttyp
Working paper
Förlag
SSRN
Ämne
- Economics
Nyckelord
- concave consumption function
- marginal propensity to consume
- liquidity constraint
- buffer-stock savings
- E21
- G11
Aktiv
Published