Precautionary Saving in the Small and in the Large

Precautionary Saving in the Small and in the Large
Author: Miles S. Kimball
Publisher:
Total Pages: 44
Release: 1989
Genre: Consumption (Economics)
ISBN:

The theory of precautionary saving is shown in this paper to be isomorphic to the Arrow-Pratt theory of risk aversion, making possible the application of a large body of knowledge about risk aversion to precautionary saving, and more generally, to the theory of optimal choice under risk. In particular, a measure of the strength of precautionary saving motive analogous to the Arrow-Pratt measure of risk aversion is used to establish a number of new propositions about precautionary saving, and to give a new interpretation of the Oreze-Modigliani substitution effect.

Precautionary Saving and Consumption Smoothing Across Time and Possibilities

Precautionary Saving and Consumption Smoothing Across Time and Possibilities
Author: Miles S. Kimball
Publisher:
Total Pages: 36
Release: 1992
Genre: Risk
ISBN:

This paper examines how aversion to risk and intertemporal substitution determine the strength of the precautionary saving motive in a two-period model with Kreps-Porteus preferences. For small risks, we derive a measure of the strength of the precautionary saving motive which generalizes to these more general preferences the concept of "prudence" introduced by Kimball [l990b] to these more general preferences. For large risks, we show that decreasing absolute risk aversion guarantees that the precautionary saving motive is stronger than risk aversion, regardless of the elasticity of intertemporal substitution. Holding risk preferences fixed, the extent to which the precautionary saving motive is stronger than risk aversion increases with the elasticity of intertemporal substitution. We derive sufficient conditions for the strength of the precautionary saving motive to decline with wealth and for a change in risk preferences alone to increase the strength of the precautionary saving motive.

Foundations of Insurance Economics

Foundations of Insurance Economics
Author: Georges Dionne
Publisher: Springer Science & Business Media
Total Pages: 748
Release: 1992
Genre: Business & Economics
ISBN: 0792392043

Economic and financial research on insurance markets has undergone dramatic growth since its infancy in the early 1960s. Our main objective in compiling this volume was to achieve a wider dissemination of key papers in this literature. Their significance is highlighted in the introduction, which surveys major areas in insurance economics. While it was not possible to provide comprehensive coverage of insurance economics in this book, these readings provide an essential foundation to those who desire to conduct research and teach in the field. In particular, we hope that this compilation and our introduction will be useful to graduate students and to researchers in economics, finance, and insurance. Our criteria for selecting articles included significance, representativeness, pedagogical value, and our desire to include theoretical and empirical work. While the focus of the applied papers is on property-liability insurance, they illustrate issues, concepts, and methods that are applicable in many areas of insurance. The S. S. Huebner Foundation for Insurance Education at the University of Pennsylvania's Wharton School made this book possible by financing publication costs. We are grateful for this assistance and to J. David Cummins, Executive Director of the Foundation, for his efforts and helpful advice on the contents. We also wish to thank all of the authors and editors who provided permission to reprint articles and our respective institutions for technical and financial support.

Precautionary Savings and the Importance of Business Owners

Precautionary Savings and the Importance of Business Owners
Author: Erik Hurst
Publisher:
Total Pages: 54
Release: 2005
Genre: Business enterprises
ISBN:

"In this paper, we show the pivotal role business owners play in estimating the importance of the precautionary saving motive. Since business owners hold larger amounts of wealth than other households for non-precautionary reasons and also face highly volatile income, they induce a correlation between wealth and income risk regardless of whether or not a precautionary saving motive exists. Using data from the Panel Study of Income Dynamics in the 1980s and the 1990s, we show that among both business owners and non-business owners, the size of precautionary savings with respect to labor income risk is modest and accounts for less than ten percent of total household wealth. However, pooling together the two groups leads to an artificially high estimate of the importance of precautionary savings. New data from the Survey of Consumer Finances further confirms that precautionary savings account for less than ten percent of total wealth for both business owners and non-business owners. Thus, while a precautionary saving motive exists and affects all households, it does not give rise to high amounts of wealth in the economy, particularly among those households who face the most volatile stream of income"--National Bureau of Economic Research web site.

Intertemporal Substitution in Macroeconomics

Intertemporal Substitution in Macroeconomics
Author: N. Gregory Mankiw
Publisher: Palala Press
Total Pages: 74
Release: 2018-02-19
Genre: History
ISBN: 9781378109380

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Monotone Instrumental Variables with an Application to the Returns to Schooling

Monotone Instrumental Variables with an Application to the Returns to Schooling
Author: Charles F. Manski
Publisher:
Total Pages: 62
Release: 1999
Genre: Education
ISBN:

Econometric analyses of treatment response commonly use instrumental variable (IV) assumptions to identify treatment effects. Yet the credibility of IV assumptions is often a matter of considerable disagreement, with much debate about whether some covariate is or is not a "valid instrument" in an application of interest. There is therefore good reason to consider weaker but more credible assumptions. assumptions. To this end, we introduce monotone instrumental variable (MIV) A particularly interesting special case of an MIV assumption is monotone treatment selection (MTS). IV and MIV assumptions may be imposed alone or in combination with other assumptions. We study the identifying power of MIV assumptions in three informational settings: MIV alone; MIV combined with the classical linear response assumption; MIV combined with the monotone treatment response (MTR) assumption. We apply the results to the problem of inference on the returns to schooling. We analyze wage data reported by white male respondents to the National Longitudinal Survey of Youth (NLSY) and use the respondent's AFQT score as an MIV. We find that this MIV assumption has little identifying power when imposed alone. However combining the MIV assumption with the MTR and MTS assumptions yields fairly tight bounds on two distinct measures of the returns to schooling.

Combining Nudges and Boosts to Increase Precautionary Saving

Combining Nudges and Boosts to Increase Precautionary Saving
Author: Shane Timmons
Publisher:
Total Pages:
Release: 2022
Genre:
ISBN:

Many households lack savings to cushion them from financial shocks. While behavioural economics offers insights into why some households who want to save may fail to do so, successful behavioural interventions to increase precautionary saving are elusive. We incorporated multiple evidence-based "nudges" and "boosts" into a savings account application form at a major commercial bank and designed an electronic marketing communication to explain cumulative risk based on a scalable boost. In a pre-registered randomised controlled trial, these interventions increased saving account uptake by 25-40%. Moreover, some effects were concentrated among low-income households.

Conservation Laws and Symmetry: Applications to Economics and Finance

Conservation Laws and Symmetry: Applications to Economics and Finance
Author: Ryuzo Sato
Publisher: Springer Science & Business Media
Total Pages: 332
Release: 1990-05-31
Genre: Business & Economics
ISBN: 9780792390725

Modem geometric methods combine the intuitiveness of spatial visualization with the rigor of analytical derivation. Classical analysis is shown to provide a foundation for the study of geometry while geometrical ideas lead to analytical concepts of intrinsic beauty. Arching over many subdisciplines of mathematics and branching out in applications to every quantitative science, these methods are, notes the Russian mathematician A.T. Fomenko, in tune with the Renais sance traditions. Economists and finance theorists are already familiar with some aspects of this synthetic tradition. Bifurcation and catastrophe theo ries have been used to analyze the instability of economic models. Differential topology provided useful techniques for deriving results in general equilibrium analysis. But they are less aware of the central role that Felix Klein and Sophus Lie gave to group theory in the study of geometrical systems. Lie went on to show that the special methods used in solving differential equations can be classified through the study of the invariance of these equations under a continuous group of transformations. Mathematicians and physicists later recognized the relation between Lie's work on differential equations and symme try and, combining the visions of Hamilton, Lie, Klein and Noether, embarked on a research program whose vitality is attested by the innumerable books and articles written by them as well as by biolo gists, chemists and philosophers.