This work reviews recent developments in the literature analyzing precautionary saving. After a description of traditional precautionary saving theory, which considers labor income risk and interest rate risk, we present different research lines which introduce a wide range of extensions and generalizations of the classical model: the contemporaneous presence of multiple risks, changes in risks of different types, multiple variables affecting household utility, preferences non-featuring risk aversion and joint decisions on many choice variables. For each of these issues, we provide specific highlights which summarize the main results obtained in the literature. Lastly, we briefly discuss the analyzes beyond the classical model.
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