the economic determinants of interest rate option smiles we address three questions relating to the interest rate options market what is the shape of the smile what are the economic determinants of the shape of the smile do these determinants have predictive power for the future shape of the smile and vice versa we investigate these issues using daily bid and ask prices of euro interest rate caps floors we find a clear smile pattern in interest rate options the shape of the smile varies over time and is affected in a dynamic manner by yield curve variables and the future uncertainty in the interest rate markets it also has information about future aggregate default risk our findings are useful for the pricing hedging and risk management of these derivatives

integrated value assessment using paired comparisons abstract a survey methodology is described which uses paired comparisons in combination with contingent valuation to assess individuals values concerning the conservation of a rare mammal species the mountain pygmy possum burramys parvus value expressions which can be accommodated by economic theory are distinguished from those which are best represented by a noncompensatory preference structure a procedure for aggregating data involving these two categories of value expression is described this integrated value assessment is more inclusive than the conventional approach of using contingent valuation and other economic data within a benefit cost framework a comprehensive assessment of the value implications of a proposal can be undertaken in which the actual rather than assumed structures of individuals values are taken into account

evolution of population resource dynamics models abstract this paper provides a comprehensive analysis of brander and taylor s 1998 model and its descendants from the following perspectives population growth substitutability innovation capital accumulation property rights and institutional designs and modeling approach this survey aims to contribute to a better understanding of population and resource dynamics models in general and facilitate further application of the model framework to relevant circumstances although often treated as exogenous in optimal growth models making population growth an endogenous function allows us to analyze broader effects of economic activities on population the issues of substitutability innovation and capital accumulation are intertwined allowing a model to address the effect of an endogenous technological change on substitutability between natural and man made capital facilitates our analyses of sustainability issues to address internalizing inter generational externalities in resource use incorporating property right changes and institutional designs to this type of model is a useful exercise but careful attention is needed for the consistency between such an arrangement and the mathematical representation of the depicted economy finally although the common criticism regarding convenient mathematical assumptions applies to the existing bt type models the use of computer simulation can relax such assumptions to better represent the intended relationships between the relevant variables

political risk and the expectations hypothesis abstract this paper develops and empirically supports using 3 and 6 month interest rates a theory that political risk can explain the shifting term premia found in u s data we find that incorporating these political regime shifts yield results that support the expectations hypothesis

a model of target changes and the term structure of interest rates abstract we investigate the effects of short term rate targeting by the federal reserve on the term structure of interest rates and make contributions at two levels using a new series of interest rate targets made available by the federal reserve bank of new york we develop a family of models that highlight the implications of discrete changes in interest rate targets for the term structure of interest rates we show that spreads between short term rates and the overnight federal reserve funds rate are mainly driven by expectations of changes in the target not by the transitory dynamics of the overnight rate around the target hence the bias in tests of the expectations hypothesis that we document can be mainly attributed to the erroneous anticipation of future changes in monetary policy our modeling assumptions and newly available data make it possible to extract a series of market expectations of the next target change which are compared with a series of realized target changes

the dynamics of human environment interactions in the collapse of the classic maya abstract in this study we investigate the societal development of the maya in the southern lowlands over a span of approximately 1400 years and explore whether societal dynamics linked to the depletion of natural resources can explain the rise and fall of the classic maya we propose a dynamical systems model that accounts for the state of the land population and workers employed in swidden and intensive agriculture and monument building optimisation of model output to fit empirical data fixes biometric parameters to values consistent with the literature and requires that a shift from swidden to more intensive agriculture took place at around 550 ce the latter prediction is consistent with the dating of the beginning of the late classical period thus our model offers an explanation of the collapse of the society of the maya and suggests that the role of droughts may have been overestimated consistent with previous work the collapse can be modelled by a critical transition supercritical hopf bifurcation where the critical parameter is the harvesting rate per capita of intensive agriculture furthermore an extensive sensitivity analysis indicates that the model and its predictions are robust

human and nature dynamics handy modeling inequality and use of resources in the collapse or sustainability of societies abstract there are widespread concerns that current trends in resource use are unsustainable but possibilities of overshoot collapse remain controversial collapses have occurred frequently in history often followed by centuries of economic intellectual and population decline many different natural and social phenomena have been invoked to explain specific collapses but a general explanation remains elusive in this paper we build a human population dynamics model by adding accumulated wealth and economic inequality to a predator prey model of humans and nature the model structure and simulated scenarios that offer significant implications are explained four equations describe the evolution of elites commoners nature and wealth the model shows economic stratification or ecological strain can independently lead to collapse in agreement with the historical record the measure carrying capacity is developed and its estimation is shown to be a practical means for early detection of a collapse mechanisms leading to two types of collapses are discussed the new dynamics of this model can also reproduce the irreversible collapses found in history collapse can be avoided and population can reach a steady state at maximum carrying capacity if the rate of depletion of nature is reduced to a sustainable level and if resources are distributed equitably

interrelationships between income health and the environment extending the environmental kuznets curve hypothesis abstract this paper examines the link between the health indicators and the environmental variables for a cross section of countries widely dispersed on the economic development spectrum while environment and income are seen to have an inverted u shaped relationship environmental kuznets curve ekc hypothesis it is also well established that environment and health are positively related our study focuses on the implications of this for the relationship between health and income in the early phases of income growth the gains in health and the losses in environmental quality could cancel each other out and this challenges the idea that as incomes increase health would always improve to empirically analyse these issues we estimate a two stage least squares model that focuses on the impact of income and the environment on health status with environment being an endogenous variable our results show that the environmental stress variable has a significant negative effect on health status at the same time gross national product gnp levels are shown to vary positively with health status variables we find that the health gains obtained through improved incomes can be negated to a significant extent if the indirect effect of income acting via the environment is ignored research findings in this regard would be a useful policy instrument towards maximising both the environmental and health gains that come with economic growth and development

a framework for scaling and framing policy problems in sustainability abstract it is argued that a necessary but lacking component of our approach in seeking policy responses to sustainability issues is some repeatable means whereby the relative magnitude and characteristics of these various policy problems faced in a given context can be analysed and described to this end a simple and tentative framework is constructed based on the definition of the key attributes which shape policy problems pertaining to environmental change these are spatial scale of cause and effect magnitude timing and longevity of possible impacts reversibility mensurability complexity and connectivity nature of cause s relevance to the given polity tractability availability and acceptability of means public concern and existence of goals these attributes inform a general taxonomy of micro meso and macro problems the attributes and the taxonomy are described with supporting examples to illustrate possible application of the framework it is discussed briefly in the contexts of operationalising the precautionary principle and policy instrument choice it is concluded that the framework can help focus debate and operationalise vague principles introduce relativity into the notion of sustainability and make policy choice more efficient

the fate of easter island the limits of resource management institutions abstract malthus malthus thomas 1798 1970 an essay on the principle of population penguin new york believed that population growth will eventually lead to natural resource depletion economic and social collapse and population decline brander and taylor brander james a taylor m scott 1998 the simple economics of easter island a ricardo malthus model of renewable resource use american economic review 88 119 138 use a predator prey model with an assumption of an open access resource they show that the collapse of easter island could be explained by a malthusian trap combined with technical characteristics of the resources they suggest that institutional change such as assignment of property rights could potentially have averted the collapse of easter island in this paper we show that even if the islanders had complete assignment of property rights and implemented optimal resource management with infinite horizon or equivalently had a social planner that implemented such an optimal plan as in neoclassical welfare economics a similar boom bust cycle would have occurred

money politics and the post war business cycle abstract the political economy literature has enshrined as stylized fact the view that lower inflation and temporarily lower growth follow the election of republican presidents and has emphasized political manipulation of monetary policy as an explanation support for the monetary explanation comes in econometric work that largely ignores identification issues that dominate the literature on measuring the effects of monetary policy we generalize a standard vector autoregression framework to accommodate discrete political party variables we find almost no support for the view that political effects on the macroeconomy operate through monetary policy and only weak evidence that political effects are significant at all

planning for sustainability as a learning concept abstract the major theme of the following discussion is the importance of a transdisciplinary approach to guide sustainability related planning and management activities the proposed approach involves much more than the usual interaction between partners from different disciplines a revised process is needed to allow real cooperation in sustainability planning this process will require a more open recognition of the subjective priorities that become the framework of sustainable development issues of various interest groups and disciplines the sustainable development agenda should be more geared towards learning processes than projected future outcomes learning is enhanced through a participatory framework inclusive of stakeholder interests insights from a broad range of disciplinary areas including the science of complexity sociology philosophy law economics and management are presented to support this position the conventional stranglehold of disciplinary thinking in policy circles limits the capacity of our decision makers to unravel the complexity of all real world environmental policy and management problems policy making needs to embody respect for that complexity and allow flexibility to promote perpetually evolving learning as a fundamentally transdisciplinary framework ecological economics has some prospect to represent these interests in a purposeful and necessarily pragmatic way

resource use institutions and sustainability a tale of two pacific island cultures this paper examines two pacific island cultures easter island and tikopia and the relationship between natural resource systems human made capital population growth and institutional change easter island followed a preindustrial society pattern of overshoot and collapse however tikopia evolved cultural practices leading to zero population growth and sustainable resource use using a modified lotka volterra predator prey model we find 1 investment in human made capital does not necessarily eliminate the boom and bust cycles of economic activity and population observed in many past societies and 2 institutional adaptation and resource conservation can be critical in achieving population stability

mixed signals central bank independence coordinated wage bargaining and european monetary union plans for the european monetary union emu are based on the conventional postulate that increasing the independence of the central bank can reduce inflation without any real economic effects however the theoretical and empirical bases for this claim rest on models of the economy that make unrealistic information assumptions and omit institutional variables other than the central bank when signaling problems between the central bank and other actors in the political economy are considered we find that the character of wage bargaining conditions the impact of central bank independence by rendering the signals between the bank and the bargainers more or less effective greater central bank independence can reduce inflation without major employment effects where bargaining is coordinated but it can bring higher levels of unemployment where bargaining is less coordinated thus currency unions like the emu may require higher levels of unemployment to control inflation than their proponents envisage they will have costs as well as benefits and these will be unevenly distributed among and within the member nations depending on the changes they induce in the status of the bank and of wage coordination

the political viability of rule based monetary policy we have estimated two models explaining political support for the president as a function of economic performance one model reflects the assumption characterizing most of the literature that voters indiscriminately punish inflation and unemployment without regard to the tradeoffs between them the other represents a more demanding conception of voter sophistication about macroeconomic possibilities and about control of the money supply while the data do not unambiguously designate a best model of behavior the sophisticated voter hypothesis performs as well as the naive voter hypothesis in the context of our study clearly this result is subject to the usual econometric caveats including possible misspecification of the model multicollinearity among independent variables etc however there is no particular reason to believe that these problems should favor one model as opposed to the other thus while we cannot conclude that voters really think in terms of rates of growth of velocity and natural output we can question the conventional wisdom that consistent rule based monetary policies may not be politically viable

commensuration and theories of value in ecological economics abstract without a theory of value price in ecological economics the valuation of ecosystem and economic resources cannot be rigorously defended at the crux of the matter is the valuation or mixed units problem of commensurating biophysical inputs outputs which are different this paper critically reviews candidate theories of value which have emerged in the ecological economics literature for dealing with this problem first of all the neo ricardian approach using sraffa type systems is discussed in particular judson s assertion that the sraffa system is suitable for ecological economics is questioned as it is based on circular flow generation of a surplus and exchange values none of these ideas are consistent with a biophysical characterisation of an economic system which is paramount in ecological economics a more fruitful avenue for establishing a biophysical theory of value based on ecological and thermodynamic principles is to extend patterson s quality equivalent methodology qem to explicitly include mass flows in addition to energy at this point a model close to costanza and hannon s biosphere model of price determination emerges the extended qem model however has a number of important advantages over the costanza hannon model because it has a more generalised formulation and is not reliant on necessarily using solar energy as the numeraire the paper concludes with a discussion of some outstanding issues that need to be resolved before a biophysical theory of value can be properly established in ecological economics

an integrated biophysical and economic modeling framework for long term sustainability analysis the harmoney model abstract this paper derives a long term dynamic growth model that endogenously links biophysical and economic variables in a stock flow consistent manner the two industrial sector harmoney human and resources with money model enables exploration of interdependencies among resource extraction rate and depletion the accumulation of population capital and debt and the distribution of money flows within the economy using a post keynesian economic framework we find that wage share declines after the model reaches a constant per capita resource extraction rate with the level of investment and markup on costs determining the rate of decline this pattern is consistent with data for the united states thus the model framework enables realistic investigation of trade offs between economic distribution size and resources consumption between sectors as well as between labor and capital these trade offs are core to the debates regarding environmental and socioeconomic sustainability this model serves as a platform upon which to add features to explore long term sustainability questions such as a transition to low carbon energy

on modeling human behavior and institutions in simple ecological economic systems abstract the use of stylized dynamical systems models and bifurcation analysis in modeling individual and collective behavior in two traditional societies the tsembaga of new guinea and the polynesians of easter island is explored the analysis is used to isolate key aspects of individual behavior that open up the possibility of resource overexploitation and key aspects of institutions capable of preventing overexploitation an extension of the brander and taylor am econ rev 88 1998 119 138 easter island model with a more realistic model for individual behavior is presented this induces significant changes in the model dynamics which share many similarities with the tsembaga model of anderies j theor biol 192 1998 515 530 namely in both models the ability of agents to intensify the exploitation of the resource base to attempt to meet demands is a fundamentally destabilizing force the model implications for present day policy issues are explored

niche diversification in environmental ecological economics abstract this paper is devoted to the identification and comparison of the niches of neoclassical environmental economics nee and ecological economics eco it is presented in four sections section 1 argues that the existing literature does not make the differences and relations between the sister disciplines neatly transparent section 2 critically examines the antecedents of the subjects with reference to three structural dimensions such as scarcity perception problem solving orientation and range of integration section 3 collates the elements and reformulates the definitions section 4 is coda on the essay the divide between the paradigms which came to the surface during the 1960s became prominent through the growth controversy of the subsequent decade the controversy over the need for change of economic theory to cope with the growing intensity of environmental uncertainty makes the disciplines sore about each other the neoclassical paradigm comprising of elements like relative scarcity allocative approach market correction and technological optimism characterises nee the distinguishing characteristics of eco include thermodynamic irreversibility absolute scarcity economy ecosystem symbiosis biophysical approach ecological stewardship and prudent pessimism the niches are competitive and complementary in some respects and thus provide a unique example of fruitful niche diversification within environmental ecological economics we have a feeling that the economics profession can trace out the interface of the disciplines in some policy areas and raise the effectiveness of prescriptions so that this academic species diversity can serve humankind to its full potential

a long history of fomc voting behavior we devise and apply a method for estimating monetary policy reaction functions for individual members of the federal open market committee fomc of the federal reserve our method uses members votes on the monetary policy directive in fomc meetings as the key source of data on individual preferences the analysis provides a ranking by preference for ease for 84 fomc members who served during the 1966 1996 period

the applicability of the traditional theory of economic policy abstract the traditional theory of economic policy requires targets instruments an empirical economic model and a social welfare or criterion function to be specified in order to derive the optimal economic policy empirical studies of reaction functions suggest that economic policy is carried out in some systematic manner subject to interference from political factors this survey addresses the problems of specifying estimating and applying an economic model when economic policy is following a path specified by a reaction function attention is paid to rational expectations the lucas critique and the policy neutrality proposition lack of knowledge of the policy maker s objective function poses the most serious difficulty when applying the theory of economic policy various methods of determining this function are reviewed and the possibility that policy makers might be satisficing is discussed the role played by political factors is considered in the light of the public choice literature

the genuine progress indicator methodological developments and results from australia abstract this paper is a contribution to the continuing development of the methods and results for the index of sustainable economic welfare also known as the genuine progress indicator gpi it attempts a more systematic approach to some of the components of the gpi it includes a more careful specification of types of capital and more plausible methods of estimating the costs of depletion of non renewable resources and environmental damage due to ozone depletion in addition the paper attempts a more comprehensive treatment of the value of time including the costs of unemployment and overwork results of the gpi calculations for australia over the period 1950 1996 are presented and analysed

a micro model of the federal funds market this paper demonstrates that valuable insights into the determination of federal funds rates can be gained through modeling the micro decisions of market participants fed fund demand functions are derived for different bank valuation functions and several implications are discussed specifically it is i possible to rationalize the observation that large banks are net purchasers and small banks net sellers of fed funds ii to explain the positive spread of fed funds rates over other short term money market rates and iii to link the size of this spread to the federal reserve s underlying monetary policy strategy

testing the satisficing version of the political business cycle 1905 1984 this paper develops a test of the satisficing version of the political business cycle previous tests have focused on maximizing models of political behavior and are not sufficiently general to test for satisficing behavior using annual u s data for the period 1905 to 1984 we find evidence supporting the satisficing version of the political business cycle model but we reject the maximizing version in accordance with the satisficing hypothesis we find that increasing inflation or unemployment and decreasing monetary base growth in the third year of a presidential term are followed typically by reversals during the election year

the keynesian and political determinants of unbalanced budgets u s fiscal policy from eisenhower to reagan the political business cycle proposition that politicians manipulate fiscal policy for political advantage is largely untested more often than not such manipulation is only assumed to occur on the basis of observed movements in inflation and unemployment and the few direct tests of the manipulation hypothesis are characterized by limited consideration of the full possibilities for political influence inadequate control for nonpolitical stabilization policy and inconsistent results this paper constructs several models of political fiscal policy incorporates them into a simple model of keynesian stabilization policy and tests the combined models using u s budget surplus deficit data from fy54 to fy83 the results provide little support for either the electoral motivation or partisan differences interpretations of the political business cycle the implications of these findings for the political business cycle literature long term economic management and deficit directed proposals for institutional reform are discussed

a theoretical foundation to support the index of sustainable economic welfare isew genuine progress indicator gpi and other related indexes abstract for some time now ecological economists have been putting forward a threshold hypothesis the notion that when macroeconomic systems expand beyond a certain size the additional cost of growth exceeds the flow of additional benefits in order to support their belief ecological economists have developed a number of similar indexes to measure and compare the benefits and costs of growth e g the index of sustainable economic welfare isew and the genuine progress indicator gpi in virtually every instance where an index of this type has been calculated for a particular country the movement of the index appears to reinforce the existence of the threshold hypothesis of late a number of observers have cast doubt over the validity of these alternative indexes one of the concerns commonly expressed is the supposed lack of a theoretical foundation to support the isew the gpi and other related indexes by adopting a concept of income and capital outlined by fisher nature of capital and income a m kelly new york 1906 this paper demonstrates that these alternative indexes are theoretically sound but in order to be broadly accepted require the continuous development of more robust valuation methods

the 1979 federal reserve policy shift some evidence using causality tests on 6 october 1979 the fomc announced a shift from federal funds rate ffr to nonborrowed reserves nbr targeting the sequence of events preceding this major policy change are well known and require only a brief recounting here prior to the 1979 announcement the fomc implemented monetary policy by confining the ffr to a narrow band about 50 to 100 basis points in width any tendency for the rate to move outside this range was countered by providing more or fewer nbr to the banking system the underlying assumption upon which this strategy was based was that money demand was stable the fed could then control the money stock by altering interest rates thereby moving the public along a fixed money demand function during the mid 1970s however various events in the money market e g income and supply shocks financial innovation and portfolio readjustments lessened the stability of money demand and brought the twin objectives of monetary control and financial market stability into frequent conflict the record shows that these conflicts were usually resolved in favor of interest rate stability rather than monetary control the consequence of ffr targeting was inflation attempts to maintain a stable ffr at the operating level in the face of money demand shifts forced the central bank to exceed its money growth targets for periods long enough to increase nominal aggregate demand in the economy with the adoption of the nbr strategy the fed attempted to achieve better control over inflation by short circuiting the endogenous influences of spending on the growth of the money stock in contrast to the pre 1979 policy spending shocks would now be reflected in ffr movements which would to some extent generate pressures to return money growth to its desired path subsequent to the announced policy shift there was much doubt about whether the federal reserve was successfully executing a nbr plan the gist of this skepticism centers on the belief that the new procedures were technically flawed specifically that reserves targeting when combined with lagged reserve accounting and borrowings projection errors resulted in short run accommodation increased interest rate and money growth volatility

easter island historical anecdote or warning for the future two standard solutions for the malthusian trap involve institutional reforms and technological progress using easter island as an example we investigate the hypothetical role that technological progress and population management reform might have played in preventing the collapse of the island s civilization the model includes a composite manufactured good and a composite harvested renewable resource fertility is assumed to rise with per capita income the resource s carrying capacity and intrinsic growth rate as well as labor s harvesting productivity are subject to technological progress fertility is subject to population management reform the model yields a system of two simultaneous nonlinear non autonomous differential equations we first study the system s steady states the system is then parameterized for easter island and its comparative dynamics are investigated in simulations we find that technological progress can generate large fluctuations in population renewable resources and per capita utility sometimes resulting in system collapse with high fertility rates the population and the resource vanish none of the simulations investigated here exhibit a constantly growing per capita utility over time finally we evaluate the applicability of these results to contemporary societies 2000 elsevier science b v all rights reserved

new methodology for the ecological footprint with an application to the new zealand economy abstract sustainable development has become a primary objective for many countries throughout the world since the late 1980s a major difficulty associated with sustainable development objectives however is the absence of reliable indicators to measure progress towards the goal of sustainability the ecological footprint provides an estimate of the land area necessary to sustain current levels of resource consumption for a given population on an aggregate basis the ecological footprint may be compared with the amount of ecologically productive land available to give an indication of whether consumption patterns are likely to be sustainable this paper proposes the use of a modified form of input output analysis to calculate the ecological footprint the input output approach provides a consistent means of calculating an ecological footprint using data collected as part of the system of national accounts in most developed countries in addition it makes explicit the link between the level of economic activity in a country and its corresponding impact on the environment an application of this methodology to new zealand indicates that it takes 3 49 has of ecologically productive land per year to sustain the average new zealander s current level of consumption

corporate credit risk dynamics the lack of widely available and comprehensive data of default activity on the corporate level has encouraged the advance of theories of corporate credit risk far beyond related empirical work this article addresses this deficit by examining a unique data set corporate bond defaults and credit ratings compiled by moody s investors service since 1920 the article investigates the time inhomogeneity of company default risk that is the pattern in which the risk of default for a company changes over time the empirical analysis addresses company default risk within a regression framework of competing risks or hazards the analysis identifies and quantifies variations in default risk with macroeconomic conditions with industries and through time an important characterization for many approaches to measuring and managing credit risk

the effect of subsistence on collapse and institutional adaptation in population resource societies abstract we extend the brander taylor model of population and resource development in an isolated society by adding a resource subsistence requirement to people s preferences this improves plausibility amplifies population overshoot and collapse and can destabilize the steady state and allows for complete cessation of non harvesting activities in line with archaeological evidence for many societies we then use bifurcation techniques to give a global analysis of four types of institutional adaptation an ad valorem resource tax and quotas on total resource harvest total harvest effort and per capita effort in all cases we find that a higher subsistence requirement makes it harder or often impossible for adaptation to avoid overshoot and collapse

energy requirements of sydney households supporting the lifestyles of the populations of modern cities requires vast quantities of natural resources and leads to environmental stresses such as air and water pollution research into the metabolism of cities therefore aims at understanding the physical flows into within and out of cities with a view to reducing the use of resources and the environmental impacts one important physical indicator is energy use most studies on cities only consider direct or end user energy consumption since the function of cities is to serve the lives of their residents indirect energy use in cities or energy embodied in the consumption of goods and services by its residents can be regarded as being as important as direct energy use however physical models of cities are extremely complex and have difficulty in dealing with boundary issues and hence the indirect resource requirements in this paper we use input output analysis and detailed household expenditure data to yield comprehensive energy use breakdowns for the 14 statistical subdivisions of sydney multivariate regression and structural path analysis spa are used to interpret the results clear correlations can be drawn between energy use and income household size age and degree of urbanity the structural path analysis is used to demonstrate how significant differences in lifestyles between inner and outer areas of sydney leads to different energy use characteristics this final consumption based approach to analysing the energy requirements for households has important implications for measures aimed at reducing energy use which tend to only consider direct energy use d 2004 elsevier b v all rights reserved

should a monetary policymaker look at money abstract this paper examines whether monetary indicators are useful in implementing optimal discretionary monetary policy when the policymaker has incomplete information about the environment we find that money does not contain useful information for the policymaker if we calibrate the model to the u s economy if money demand were to be appreciably less variable observations on money could be useful in response to productivity shocks but would be harmful in response to money demand shocks we provide an incomplete information example where equilibrium welfare declines when the money demand volatility decreases

economy and environment a theoretical essay on the interdependence of economic and environmental systems preface notation guide 1 introduction part i the physical economy environment system 2 closed physical systems a model 3 structure and time in the physical system 4 technological change and the environmental constraints to physical growth part ii the economic system 5 the price system 6 prices property and the environment 7 economic conflict and environmental change part iii environmental strategies in an evolutionary economy environment system 8 time uncertainty and external effects 9 the market solution 10 the stationary state 11 conclusions references index

non linear dynamics of population and natural resources the emergence of different patterns of development abstract this paper studies the long term dynamic interaction between the exploitation of natural resources and population growth brander and taylor brander j a and taylor m s 1998 the simple economics of easter island a ricardo malthus model of renewable resource use american economic review 88 1 119 138 started a sequence of papers which sought to deduce from historical and archaeological studies some stylized links between ecological and economic systems in this strand of literature all the services of the natural environment are aggregated in an ecological complex which is characterized by a simple logistic dynamics given such assumptions these models show a unique long term steady state the aim of this paper is to obtain a more general framework that could account for the heterogeneity of environmental development paths followed by past societies two new assumptions are introduced i the disaggregation of the ecological complex into two different resources ii irreversibility namely an inexorable tendency to exhaustion when the renewable resource stock is below a certain threshold analysis of the dynamic properties of the system shows a multiplicity of steady states which makes it possible to consider the effects of technical progress cultural and climate changes on the resilience of the existing development path

conservation of mass and instability in a dynamic economy environment system abstract this paper considers a variant of the neumann leontief sraffa general equilibrium models in the context of a jointly determined economy environment system subject to a conversation of mass condition it shows that the conservation of mass contradicts the free disposal free gifts and non innovation assumptions of such models that an expanding economy will be associated with continuous disequilibrating change in the material transformations of both economy and environment and that this change is uncontrollable through the price system

entropy structure and organisational change abstract the paper sets out a basis for rigorous thermodynamic characterisation of structural change and of organisational interdependencies between economic and environmental processes many attempts have been made to exploit entropy as a generic explanatory variable it has widely been proposed that entropy is a measure of the level of dis order of a system of how mixed up things are then as organisation is often thought synonymous with some notion of order it has been a small step to propose that increasing organisation is the converse of increasing entropy another suggestion has been that social system structure and change can be explained in terms of a tendency towards maximum entropy production the lotka principle of maximum energy dissipation all these notions must be rejected the putative entropy order connection has its inspiration in boltzmann s probabilistic interpretation of thermodynamic entropy as a measure of microscopic disorder this order principle is simply not applicable under conditions far from thermodynamic equilibrium prigogine conditions which prevail for all important economic and ecological processes under such conditions the relationship between entropy production and changes in structure or organisation is multi faceted and situation specific attempts to account for the specificity of societal activities in terms of a generic scalar measure of organisation or dissipation are largely after the fact and in no way do away with the need for analysis of institutional and ethical dimensions of human action in their own right when properly allied to institutional analysis however the far from equilibrium thermodynamics furnishes a rich impetus for a coevolutionary perspective in ecological economics with promise of incisive treatments of in particular issues of system environment codependency and of the time in determinacies of economy environmental change

coupled societies are more robust against collapse a hypothetical look at easter island inspired by the challenges of environmental change and the resource limitations experienced by modern society recent decades have seen an increased interest in understanding the collapse of past societies modelling efforts so far have focused on single isolated societies while multi patch dynamical models representing networks of coupled socio environmental systems have received limited attention we propose a model of societal evolution that describes the dynamics of a population that harvests renewable resources and manufactures products that have positive effects on population growth collapse is driven by a critical transition that occurs when the rate of natural resource extraction passes beyond a certain point for which we present numerical and analytical results applying the model to easter island gives a good fit to the archaeological record subsequently we investigate what effects emerge from the movement of people goods and resources between two societies that share the characteristics of easter island we analyse how diffusive coupling and wealth driven coupling change the population levels and their distribution across the two societies compared to non interacting societies we find that the region of parameter space in which societies can stably survive in the long term is significantly enlarged when coupling occurs in both social and environmental variables

the political manipulation of macroeconomic policy conventional wisdom and some research indicate that macroeconomic policies follow cycles corresponding to political as well as economic forces using vector autoregression analysis i test three models of monetary policy determination for the united states 1953 1984 the electoral cycle model that reelection motivations on the part of presidents create a policy cycle the party differences model that policy changes reflect revolving presidential party administrations and the referendum model that changes in presidential approval create in effect a continuing referendum allowing presidents to monitor their success and change macroeconomic policies when necessary analysis shows that monetary policies as measured by the monetary base and short term interest rates respond to the election cycle and presidential approval although the effect on macroeconomic outcomes is ambiguous party differences are found in real income but are not very significant in other variables

agent heterogeneity and consensual decision making on the federal open market committee the consensual aspects of decision making are essential for understanding policy made by administrative organizations that take the form of a commision or board consensual decision making reflects the degree of policy cohesion exhibited by high level officials within administrative organizations it is proposed here that this type of behavior may differ between heterogeneous agents the federal open market committee fomc of the federal reserve system serves as a salient setting for testing these propositions in a time series context the empirical results indicate that major intra institutional differences exist between board of governor bog and regional bank president rbp members of the federal open market committee fomc regarding consensual behavior in terms of policy decision making the econometric evidence clearly demonstrates that the consensual behavior of these agents are fundamentally different from one another this in turn has important implications for the study of other commission and board policy making bodies that consist of agents who are not all homogeneous

development of ecological economics in australia and new zealand abstract this paper reviews the development of ecological economics in australia and new zealand since its beginnings in the late 1970s a historical account is presented that focuses particularly on the activities of the australia new zealand society for ecological economics and key ecological economics research activities achievements of ecological economics in australia and new zealand are assessed using a range of quantitative and qualitative data the main areas of expertise developed by australian and new zealand ecological economists were found to be theoretical foundations and visions for ecological economics biodiversity and resilience input output analysis heterodox valuation approaches analysis of economy environment interactions sustainability indicators sustainable agriculture fisheries and oceans and energy thermodynamics both countries are ranked at the top or near the top of the world rankings in terms of per capita isee membership and publication rates in ecological economics a defining feature of ecological economics in australia and new zealand has also been its practical and problem solving focus and the level of end user engagement the paper concludes by discussing the challenges that face the future development of ecological economics in australia and new zealand

the unemployment rate consequences of partisan monetary policies economists and political scientists have identified several ways in which political motivations and institutional arrangements can affect macroeconomic policymaking one way is described by the political business cycle model 42 37 in which vote seeking politicians manipulate the path of the economy to secure unsustainably favorable conditions at election times variants of this model have been widely tested with limited success a second channel for political impacts comes through partisan policy changes brought about by electoral turnover the pathbreaking work in this literature includes the contributions of hibbs 30 31 32 33 and beck 11 these works have focused on the empirical issue of how unemployment rates vary under democratic and republican presidents in the u s and have found strong support for the proposition that unemployment rates decline under democratic administrations a third phenomenon has been studied primarily by economists and concerns the credibility problem faced by a central bank selecting money growth rates models of the credibility problem 8 21 describe a setting in which the central bank and the public interact by respectively choosing actual and expected money growth rates in a variant of the prisoners dilemma this interaction can result in excessive inflation

federalism and central bank independence the politics of german monetary policy 1957 92 two channels of political control allow elected politicians to influence monetary policy first political threats to the status structure or very existence of the central bank may force central bankers to comply with politically motivated demands on monetary policy second politicians may use their powers of appointment to ensure that central bank appointees share their electoral and party political goals this paper derives the monetary policy outcomes obtained as a function of the degree of central bank independence zero partial or full and central bankers types partisans or technocrats based on a case study of the 1957 and 1992 institutional changes to the german central banking system and a regression analysis covering the period in between i argue that the formal independence of the system is protected by its embeddedness in the institutions of german federalism and by the federalist components of its decentralized organizational structure the behavioral independence of the german central bank fluctuates over time with the party control of federalist veto points the bundesbank is staffed with nonpartisan technocrats who are partially insulated from political pressures

monetary policy signaling from the administration to the federal reserve this chapter employs the index of monetary policy signaling from the administration to the federal reserve safer that was developed in chapter two the safer index is a simple weekly sum of articles that appeared in the wall street journal in which administration officials expressed a desire for easier 1 or tighter 1 monetary policy a key assumption is that systematically over time the financial media capture the essence of communication that is going on between the executive branch and federal reserve officials 1 the signaling index is employed in ordinary least squares regressions for the period from january 1964 to november 1991 cumulative values of the safer index over a three week period as an explanatory variable are found to have a statistically significant effect on the average federal funds rate during the third week as the dependent variable further evidence suggests that the safer index is granger causal with respect to the federal funds rate after classifying the signals by sources within the administration oval office council of economic advisers treasury and other and unidentified sources it is shown that for the overall 1964 1991 period signals from the treasury department and from other and unidentified sources have a statistically significant effect on the federal funds rate while signals from the oval office and the council do not when the data are segmented according to who was the chairman of the federal reserve board at the time ordinary least squares results indicate that the federal reserve did not systematically respond to executive branch signaling in a statistically significant way when william mcchesney martin g william miller and alan greenspan were chairmen but did respond statistically significantly to administration signaling during portions of the periods during which arthur burns and paul volcker were chairmen

the international economy as a constraint on u s macroeconomic policymaking international economic factors increasingly influence american trade and exchange policy and interdependence also circumscribes the autonomous choice of domestic policies but the growing concern of organization for economic cooperation and development oecd policymakers over the potential for macroeconomic policy coordination to enhance national as well as world welfare implies that international economic relations present opportunities rather than constraints under some circumstances this suggests that understanding domestic economic policy choice within its international context involves not only how policy choices are made within the bounds of international constraints but also when countries might cooperate to modify the constraints themselves this research looks to four important historical cases for information on these questions the first three are the series of cumulating crises in the international monetary system during the 1960s and early 1970s the fourth is the energy supply shock of 1973 and the recession that followed the article describes the process of policy selection in each of these cases contrasting domestic versus international premises for policy choice the economics literature has emphasized the magnitude of domestic welfare gains available from coordinated national economic policies although the cases considered here do not contradict the importance of payoffs they underline the corresponding role of political economic and strategic uncertainty in conditioning elites policy choices

a political model of monetary policy with application to the real fed funds rate abstract we construct an empirical model of u s monetary policy assuming that the federal reserve is an ordinary federal bureaucracy we use the real federal funds rate as our policy measure and show the existence of significant executive legislative and bureaucratic influence on the real rate of interest from 1961 to 1996 we find that presidential party is an adequate statistical measure of executive influence and that the voting scores of the senate banking committee leadership best represent legislative influence we argue that political changes cause systematic and predictable changes in monetary policy

partisan monetary policies presidential influence through the power of appointment we investigate the channels through which partisan influence from a presidential administration could affect monetary policy making influence could be a result of direct presidential pressure exerted on members of the federal open market committee fomc or it could be a result of partisan considerations in presidential appointments to the board of governors to investigate these two channels of influence we devise and apply a method for estimating parameters of monetary policy reaction functions that can vary across individual members of the fomc our results suggest that the appointments process is the primary mechanism by which partisan differences in monetary policies arise

conservation in the optimal use of rangelands abstract in previous papers we have considered the optimal mix of biodiversity in semi arid rangelands focusing on the steady state this paper addresses the question of conservation in the optimal use of rangelands where conservation is understood to mean maintenance of the system in a natural state we consider a rangeland that may exist in one of two states in the natural state its dynamics are regulated by fire in the managed state its dynamics are regulated by grazing pressure by livestock we show that the optimal use of rangelands may include its maintenance in both states at different points in time depending on initial conditions and the set of relative prices

measuring technical progress in gross and net products abstract on the optimal path of a constant returns economy with capital and non renewable resource inputs the rate of exogenous technical progress in nnp for use in weitzman s technical progress premium equals the rate of progress in gross production divided by one minus the production elasticity of the resource flow

the october 1979 regime of monetary control and the behavior of the money supply in 1980 in october 1979 the federal reserve system instituted a regime of monetary control characterized by lagged reserve accounting and a nonborrowed reserves operating target section 2 of this paper provides an analytical framework for this regime section 3 appraises the efficacy for purposes of monetary control of this regime by comparing it to a regime characterized by contemporaneous reserve accounting and a total reserves operating target section 4 describes the actual implementation of the regime section s examines the question of why the rate of growth of the money supply was so variable within 1980

measuring development with inequality how should aggregate indicators of development account for inequality abstract the paper analyzes how inequality is accounted for in aggregate indicators of development and whether and how it should be used the motivation behind the study stems from the renewed interest in inequality in academia public discourse and in global policy first we argue that inequality should be considered when constructing development indicators the role of distribution in development is important both because people generally prefer lower inequality and inequality tends to have negative effects on development outcomes second we analyze how ten selected development indicators account for inequality in terms of justification type of inequality measure of inequality and method of incorporation and what the strengths and weaknesses of different approaches are we found considerable diversity especially for inequality measures and methods of incorporation as for the type of inequality inequality of opportunities is considered marginally and overlapping inequalities not at all increasing data availability opens the door for inclusion especially for the latter aspect as most indicators suffer from insufficient methodological substantiation we argue for increased clarity regarding why and how inequality is accounted for in development indicators the analysis is complemented by a detailed review of treatment of inequality by the analyzed indicators annex

integrated value theory for natural areas abstract value assessment is a necessary component of any rational decision making process concerning the use or management of natural areas this paper describes an integrated value theory for identifying measuring and aggregating human values for natural areas to ensure philosophical coherence the framework makes a commitment to a specific theory of end values three related levels of end value are identified which give meaning to the values expressed by humans the theory addresses the three rational modes of human value expression weakly comparable noncompensatory and exchange exchange value expressions are consistent with neoclassical economic notions of value the other types of value expression are not current techniques for aggregating values include multicriteria analysis and benefit cost analysis multicriteria analysis can encompass the three modes of value expression but does not readily discriminate between them and so fails to take advantage of the full information content of noncompensatory and exchange preferences benefit cost analysis on the other hand assumes a particular structure of values which means it should be limited to assessment of exchange preferences the framework outlined in this paper provides an advance on both of these methods in that it combines the specificity of benefit cost analysis with the breadth of multicriteria analysis

species conservation and the principal agent problem abstract principal agent problems occur in contract or management contexts they arise out of the agent s desire to imperfectly follow the principal s preferences despite being under the authority of the principal principal agent problems may be present in biodiversity recovery programmes a principal agent model is constructed where rewards and sanctions are based on the change in a species status an optimal contract is derived but it is then argued that this contract will be impossible to implement principal agent problems may impose costs to recovery programmes both in terms of lower odds of persistence and the mix of species prioritised three institutional devices ecosystem management agent selection mechanisms and attaching economic returns to the change in species status may offset some of these costs

presidential influence on the federal reserve in the 1970 s this research examined presidential influence on federal reserve monetary policy in the 1970s a reaction function for the change in the federal funds rate was estimated and then checked to determine whether that reaction function shifted at politically important points the two political influences studied were elections and administration the federal reserve did not appear to manipulate the money supply in 1972 to aid president nixon s reelection the reaction function shifted between the nixon and ford administrations it did not shift with the ascension of carter and it did not shift with the replacement of chairman arthur burns by chairman william miller

presidential elections and federal reserve policy an empirical test traditional macro economic models of federal reserve fed behavior typically assume that the fed enjoys a well defined objective function based on social welfare and generally predict counter cyclical monetary policy the increasing observation of procyclical monetary policy has led many researchers to investigate new models of fed behavior several recent papers imply that procyclical fed behavior is due to a lack of political accountability friedman 7 toma 23 and shughart and tollison 21 all attribute considerable bureaucratic discretion to the fed and seek to explain monetary policy by examining typical bureaucratic objectives other papers such as pierce 19 20 weintraub 26 and kane 10 11 argue that the fed operates in an arena filled with political constraints that cause sub optimal monetary policy but these constraints are not modeled explicitly one possible political constraint on fed behavior is the incumbent president s desire for re election in the political business cycle pbc literature presidential re election opportunities are enhanced by the production of a precise set of inflation and unemployment outcomes leading up to the election thus to the extent that presidents desire cyclical macro economic outcomes there will be executive pressure on the fed to create or accommodate such outcomes the effect this pressure will have on fed policy is ultimately an empirical question but most models deal with it by assumption traditional macro modeling assumes a zero effect while the pbc models implicitly assume that a favorable election cycle is a primary goal of all economic policymakers this paper examines presidential influence on the federal reserve by testing for an election cycle in money growth the major result is the identification of a regular 16 quarter cycle in money growth corresponding with presidential elections this cyclical effect is found to be stable over time and significant under a wide range of model specifications further when the cyclical component of money growth is used to simulate a simple macro model it produces a classic political business cycle in inflation and real output growth

elections and the fed is there a political monetary cycle to understand the political causes of macroeconomic policy it is necessary to examine the institutions that actually make such policy and the incentives those institutions face an explanation of the political causes of united states monetary policy must treat the various institutions that are influential in the monetary policy process which are at a minimum the federal reserve fed and the executive including the president the treasury department and other advisors in the executive office of the president the reelection motive has proven useful in modeling presidential incentives in this article i investigate whether electoral incentives associated with the theory of the political business cycle pbc can help to explain the behavior of the fed over the last quarter century the political business cycle has had a curious hold on modern political economy while the empirical evidence in favor of the cycle is far from overwhelming its theoretical importance leads to continuing empirical

renewable resources property rights regimes and endogenous growth abstract we extend brander and taylor s brander j a taylor m s 1998 the simple economics of easter island a ricardo malthus model of renewable resource use am econ rev 88 119 138 model of feast and famine cycles on easter island using galor and weil s gailor o weil d n 2000 population technology and growth from malthusian stagnation to the demographic transition and beyond am econ rev 90 806 28 model of endogenous technological advance where technological change is related to the population we note that different property rights regimes will influence the relative direction of technological advance whether that advance is in harvesting technologies or in technologies that influence the growth rate of some renewable biological resource property rights regimes that favor biological growth rates over harvest rates tend to dampen feast famine cycles while those that favor harvest efficiency worsen such cycles

deficits politics and money growth the authors examine the linkage between federal deficits and money growth by allowing the fed s resp onse to any given deficit to vary systematically according to how the deficit is generated and the party affiliation of the current presid ent in equations for m1 and monetary base growth the structural def icit is consistently significant and invariant across political chang es while the cyclical component of the deficit or a direct measure of the business cycle is significant only during the tenure of democ ratic presidents copyright 1987 by oxford university press

sustainable land use management under biodiversity lag effects the destruction of natural habitats for agricultural production results in local biodiversity loss biodiversity loss in turn affects agricultural production indirectly through a range of biodiversity dependent ecosystem services land conversion thus results in a negative externality mediated by changes in biodiversity when the consequences of this externality are delayed in time lack of internalization results in overshoot and collapse dynamics which are undesirable from a sustainability perspective here we emphasize the importance of forward looking policies for the long term sustainability of human nature interactions we show that the internalization of this externality through a land tax can result in several win win effects in the long run first more biodiversity is preserved at equilibrium which increases the carrying capacity and total well being of the human population second a taxation path that maximizes the discounted sum of human utilities prevents or greatly alleviates overshoot and collapse crises thus increasing the sustainability of the system in particular this result holds in the case of imperfect information regarding the precise temporal dynamics of biodiversity loss suggesting that the design of efficient land use management policies is possible despite incomplete ecological data this study highlights the need to internalize biodiversity dependent externalities through economic incentives especially under uncertainty regarding long term ecological dynamics

economics and the debate about preservation of species crop varieties and genetic diversity the paper reviews and outlines criteria that have been suggested for determining whether or not to save a species for extinction priorities as set out in the world conservation strategy cost benefit analysis and the safe minimum standard approach are given particular consideration the different criteria also are compared assuming that there is an absolute upper constraint on the amount of resources available for the conservation of species there is some discussion of whether the reduction in available crop varieties is adding to or reducing the instability of crop yields it is claimed that relative variability appears to be falling but there may be an increasing risk of non sustainability the importance of the burden of proof in the conservation versus non conservation debate is stressed and it is suggested that recent economic thought has swung more towards the view that the burden of proof should rest on those seeking to carry out activities which may extinguish a species

is there an environmental kuznets curve for sulfur abstract most existing estimates of the environmental kuznets curve ekc for sulfur which use samples of mainly high income countries indicate a maximum emissions turning point at middle to lower high income levels of gdp per capita we use a larger and more globally representative sample than previous sulfur ekc studies we find that sulfur emissions per capita are a monotonic function of income per capita when we use a global sample and an inverted u shape function of income when we use a sample of high income countries a model estimated in first differences results in a monotonic ekc when estimated with both high income and global samples reductions in emissions are time related rather than income related

modeling the bid ask spread measuring the inventory holding premium the need to understand and measure the determinants of market maker bid ask spreads is crucial in evaluating the merits of competing market structures and the fairness of market maker rents this study develops a simple parsimonious model for the market maker s spread that accounts for the effects of price discreteness induced by minimum tick size order processing costs inventory holding costs adverse selection and competition the inventory holding and adverse selection cost components of spread are modeled as an option with a stochastic time to expiration this inventory holding premium embedded in the spread represents compensation for the price risk borne by the market maker while the security is held in inventory the premium is partitioned in such a way that the inventory holding and adverse selection cost components as well as the probability of an informed trade are identified the model is tested empirically using nasdaq stocks in three distinct minimum tick size regimes and is shown to perform well both in an absolute sense and relative to competing specifications

the federal reserve system and control of the money supply in the 1970s this paper addresses the question of whether the federal reserve system in the 1970s used the money supply as its predominant intermediate target of policy l did the federal reserve control the money supply in the 1970s where control is defined as requiring that the behavior of the money supply accurately reflect the stance of monetary policy desired by the federal open market committee fomc of the federal reserve system the question just posed is approached through an examination of the system s operating procedures for implementing monetary policy in the 1970s what intermediate target of policy was the fomc trying to achieve as inferred by its choice of operating procedures 2

limits to substitution and irreversibility in production and consumption a neoclassical interpretation of ecological economics abstract there are many methodological approaches within ecological economics one of the principal modes of analysis is a modified version of the standard neoclassical model this paper examines the parallels which emerge between the ideas of some ecological economists concerning production and the ideas of others concerning consumption when these ideas are interpreted in the neoclassical paradigm it is well known that ecological economics is characterized by arguments concerning limits to substitution between inputs energy natural capital etc vs manufactured capital labor etc in production and the implications these have for sustainability however various authors have also expressed concerns regarding limits to substitution in consumption either between environmental assets and other goods or between basic needs commodities and other goods though the specific reasons for non substitution are different in the production and consumption cases the underlying theme is that individual commodities and other inputs have unique physical or other properties which make them poor substitutes ideas about irreversibility in production and economic development are also prominent in ecological economics likewise many authors have argued for similar irreversibilities in consumption behavior in analogy to the term technological change i coin the term preferential change to describe these phenomena the linking themes in this case are that the economy environment system is evolutionary in character and that external effects intended and unintended consequences of actions or processes imposed on other parties or resources are all pervasive

sustainable development differing perspectives of ecologists and economists and relevance to ldcs abstract the claim is now widely that it is desirable to aim for a sustainable society for sustainable economic development and for sustainable productive systems this reflects the outlook of ecologists rather than the majority of economists although a small group of economists does see particular virtue in sustainability the outlook of ecologists is illustrated by conway s criteria for assessing the desirability of agricultural systems this approach is shown to involve several unresolved conceptual issues this leads to a discussion of the policy of a safe minimum standard as proposed by some economists and the critique of expected utility and risk benefit analysis by page and maclean and whether this might provide a bridge between the views of economists and ecologists a basis is established for considering whether sustainability of productive systems is likely to be a more important goal in less developed countries than in developed countries further examples of the stress of ecologists on the production sustainability goal are given and additional policy prescriptions for instance involving nomadism and transhumance are discussed