scholarly journals Exhaustible Resource Allocation, Intergenerational Equity, and Sustainability

1996 ◽  
Vol 25 (1) ◽  
pp. 60-67
Author(s):  
Keith C. Knapp

An OLG model with exhaustible resources and solar energy is developed, and equilibrium time paths are characterized numerically using recursive methods. For the parameter values considered, resource prices increase over time, and extractions, output, and utility decline over time until a steady-state is reached. Decreasing the intertemporal elasticity of substitution or raising consumers' subjective discount rate hastens exhaustion of the resource stock. Market equilibrium can result in much quicker use of the stock than social optimality under a constant discount rate, with consequent higher utility for early generations and lower utility for future generations in contrast to social optimality.

2021 ◽  
Vol 10 (2) ◽  
pp. 114-125
Author(s):  
Pavel Potužák

The theory of interest of Irving Fisher was designed to explain positive, zero, and negative interest rate. One of the intertemporal equilibria with the zero interest is an economy with a given supply of hardtacks for shipwrecked sailors. Hardtacks can be fully saved for the future, but their stock cannot be enlarged by production. Fisher presented several streams of consumption of hardtacks over time. This paper shows that the Fisherian paths are not consistent with the dynamic optimization model. Different trajectories of the optimum consumption are calculated and sketched. Their shape depends on the value of the subjective discount rate, the intertemporal elasticity of substitution in consumption, and the lifetime horizon of the shipwrecked sailors. None of them resemble the original Fisher examples.


2014 ◽  
Vol 32 (3) ◽  
pp. 256-277
Author(s):  
T.V. Grissom ◽  
M. McCord ◽  
D. McIlhatton ◽  
M. Haran

Purpose – The purpose of this paper, which is the first of a two-part series, is to build upon the established research on environmental economics and sustainability theory developed by Ramsey (1928), Weitzman (2007) and Gollier (2010). The Ramsey-Weitzman-Gollier model, with the contribution of Howarth (2009) and Nordhaus (2007a, b), focuses on discount rate development for environmental and long-term assets, linking discounted utility analysis embedded in the CCAPM model of Lucas (1978) to the policy concerns associated with the valuation of public and sustainable resources. This paper further investigates these issues to the rates structure appropriate for exhaustible resources with a particular emphasis on urban land, based upon the differentiation of strong and weak form sustainability concepts constrained by the objectives of the sustainable criterion of Daly and Cobb (1994). Design/methodology/approach – The paper integrates the concepts of discount rate development for environmental and long-term assets and discounted utility analysis to the policy concerns associated with the valuation of public and sustainable resources. It develops new theoretical insight in order to allow the theoretical formulation of discount and capitalization rates that can be empirically applied and tested. Findings – The paper provides theoretical support for a new approach concerned with the development of capitalization and discount rates in the valuation of non-renewable resources. A key concern of valuing non-renewable or limited resource endowments (in space or time) is the problem of irreversible investment or irrevocable decision implementation as suggested by Arrow-Fisher (1974), Krautkraemer (1985) and Daly and Cobb (1994). It investigates the challenge with developing capitalization rates and valuation of depleting resources temporally, within the constraints of sustainability. To achieve this, an optimal control discounting procedure subject to a sustainable objective statement is employed – in this context it suggests that sustainability should be treated as an alternative to traditional growth and the maximization of near-term returns. Originality/value – This paper extends the construct of developing rates structures appropriate for the valuation of exhaustible resources. It places a conceptual emphasis on urban land development. The measures developed and the insights gained may serve as a basis for future research on the optimal levels of sustainable development appropriate for different nations.


Author(s):  
Luciana Echazu ◽  
Diego Nocetti ◽  
William T. Smith

Abstract How should changes in environmental quality occurring in the future be discounted? To answer this question we consider a model of “ecological discounting”, where the representative consumer has a utility function defined over two attributes, consumption and environmental quality, which evolve stochastically over time. We characterize the determinants of the social discount rate and its behavior over time using a preference structure that disentangles attitudes towards intertemporal inequality, attitudes towards risk, and tastes over consumption and environmental quality. We show that the degree of substitutability between consumption and environmental quality, the degree of risk aversion, the degree of inequality aversion, and the rate at which these attitudes change as natural and man-made resources evolve over time are all important aspects of the ecological discount rate and its term structure. Our analysis suggests that over medium and long term horizons the ecological discount rate should be below the rate of time preference, supporting recent proposals for immediate action towards climate change mitigation.


2016 ◽  
Vol 20 (5) ◽  
pp. 1282-1312 ◽  
Author(s):  
Sigrid Röhrs

This paper analyzes the determination of public debt in a dynamic politico-economic model with overlapping generations. Sizeable levels of public debt can be rationalized in this model. The elasticity of substitution between public and private consumption determines the size of public debt and could explain differences of debt across countries. I compare the optimal policies under commitment and in a “political equilibrium” without commitment. Public debt can be higher or lower when commitment is absent, depending on the elasticity of substitution between public and private consumption. Consequently, under certain conditions, the no-commitment debt level can be closer to a normative benchmark with higher weight for future generations.


2017 ◽  
Vol 22 (6) ◽  
pp. 674-698 ◽  
Author(s):  
David Greasley ◽  
Eoin McLaughlin ◽  
Nick Hanley ◽  
Les Oxley

AbstractComprehensive Investment (CI) may provide an indicator of future changes in a country's per capita consumption. The authors explore the utility of the CI indicator for Australia by constructing CI data since 1861 and by estimating their relationship with changes in future consumption over periods of 50 years ahead. The CI measures include changes in natural, produced and human capital, and make allowance for exogenous technological progress. The results are used to consider how Australia's natural capital exploitation influenced the consumption of future generations. Further, the authors gauge if low CI relative to other leading OECD countries resulted in lower consumption levels in Australia over time than feasible, had it saved more.


1966 ◽  
Vol 23 (3_suppl) ◽  
pp. 1215-1222 ◽  
Author(s):  
R. L. Brown ◽  
R. A. Spern ◽  
K. Schmitt ◽  
A. Solomon

The two experiments described were concerned with defining the optimal parameter values for an electropulse stimulus and the extent of S differences. In Exp. I, touch and pain threshold variations were established on 12 Ss as a function of pulse number (1, 4, 8) and pulse duration (0.5, 1.0 msec). Significant support was obtained for use of a single pulse of 0.5-msec. duration. In Exp. II, touch and pain thresholds were obtained on 20 Ss coincident with body region and session variation. The abdomen and chest appear to be ideal electrode sites. S differences over time were discussed.


2017 ◽  
Vol 23 (1) ◽  
pp. 19-36 ◽  
Author(s):  
Johannes Emmerling

AbstractWe study the social discount rate, taking into account inequality within generations, that is, across countries or individuals. We show that if inequality decreases over time, the social discount rate should be lower than the one obtained by the standard Ramsey rule under certain but reasonable conditions. Applied to the global discount rate and due to the projected convergence across countries, this implies that the inequality adjusted discount rate should be about twice as high as the standard Ramsey rule predicts. For individual countries on the other hand, where inequality tends to increase over time, the effect goes in the other direction. For the United States for instance, this inequality effect leads to a reduction of the social discount rate by about 0.5 to 1 percentage points. We also present an analytical formula for the social discount rate allowing us to disentangle inequality, risk, and intertemporal fluctuation aversion.


2021 ◽  
Vol 19 (1) ◽  
Author(s):  
John White

The article begins with a fictional example of a life that has been spent frugally in several different ways and for different reasons over time: in wartime, through many decades of simple living, through a period marked by anxiety over the threat to future generations from the depletion of global resources and the climate crisis, to the COVID-19 emergency. The mini-biography serves as an introduction to a more systematic account of these various perspectives on frugality and reasons for adopting a frugal way of living. This provides the framework for a discussion of different aspects of education for frugality in the main body of the article. There are two brief sections at the end dealing, first, with a caveat about the climate change argument for education in frugality and, second, with wider issues that the topic raises.


Sign in / Sign up

Export Citation Format

Share Document