does household composition matter the impact of the grain for green program on rural livelihoods in china article i nfo this research introduces family composition into the sustainable livelihoods framework for policy analysis we apply this approach to a case study on the grain for green program in western china using recent survey data from zhouzhi county we show that the impact of the policy on rural livelihoods varies across household compositions the environmental program neither targets asset poor households nor does it necessarily shift the on farm labor to non farm sectors which would improve household incomes after controlling for the effect of assets households with children but without the elderly tend to have lower migration rates and lower incomes after participation in the program policy strategies should consider household heterogeneity particularly household composition in rural china

spatial targeting of payments for environmental services a tool for boosting conservation benefits abstract payments for environmental services pes have become an increasingly popular market based instrument to translate external non market environmental services into financial incentives for landowners to preserve the ecosystems that provide the services however lack of spatial differentiation in the targeting mechanism may lead to efficiency losses addressing this challenge we construct an applied site selection tool which takes into account three variables that vary in space environmental services provided risks of losing those services and participation costs using data from costa rica s nicoya peninsula we empirically test the tool s potential to increase the financial efficiency of the forest focused pes program in place results show that given a fixed budget efficiency increases radically if per hectare payments are aligned to landowners heterogeneity in participation costs involving opportunity transaction and direct costs of protection respectively selecting sites based on environmental service potential also moderately increases efficiency overall additionality could in the best case be doubled but remains generally limited due to current low deforestation risks prevailing in costa rica to take advantage of the high efficiency potentials of flexible payments we propose inverse auction systems as a cost effective approach for the determination of micro level participation costs

the effect of the sloping land conversion programme on farm household productivity in rural china abstractthe objective of this paper is to examine the treatment effect on farm household productivity induced by the sloping land conversion program using large balanced household level data from five provinces during 1996 2010 this study shows that the slcp significantly improved the productivity of participants during the first round of funding of the programme until 2008 while the effects decreased gradually in the second round with most years not showing significant differences moreover it is found that there are heterogeneous effects on farm household productivity between the south and north as well as between poor and rich regions

sophisticated monetary policies in standard monetary policy approaches interest rate rules often produce indeterminacy a sophisticated policy approach does not sophisticated policies depend on the history of private actions government policies and exogenous events and can differ on and off the equilibrium path they can uniquely implement any desired competitive equilibrium when interest rates are used along the equilibrium path implementation requires regime switching these results are robust to imperfect information our results imply that the taylor principle is neither necessary nor sufficient for unique implementation they also provide a direction for empirical work on monetary policy rules and determinacy

property rights regimes and natural resources a conceptual analysis revisited summary more than two decades ago schlager and ostrom 1992 developed a conceptual schema for arraying property rights regimes that distinguishes among diverse bundles of rights the conceptual framework has profoundly influenced research on natural resource governance common property and community resource management however currently natural resource governance has changed dramatically challenging the applicability of the conceptual schema there are now many more social actors involved in resource management than the local communities at the focus of original analysis additionally resource management increasingly provides access to various kinds of benefits from outside the immediate context including indirect benefits such as payments for environmental services and results based payments for redd these changes demand addition of new property rights to the original framework this paper updates the conceptual schema in reaction to changes in natural resource governance proposing three specific modifications on the focus of use rights control rights and authoritative rights to come up with a framework that distinguishes eight types of property rights we apply the framework to three purposefully selected governance interventions in china and laos that include the provision of indirect benefits in addition to the direct benefits derived by local people from natural resources the empirical application shows how contemporary governance changes may not lead to local people s outright dispossession since they continue to possess direct use rights to natural resources however local people may be excluded from control and authoritative rights which are exercised exclusively by state agencies and international actors the latter make available indirect benefits to local people which may or may not translate into use rights in the sense of policy based entitlements the empirical insights suggest the possibility of a wider trend of compensated exclusions in natural resource governance

land tenure arrangements and rural urban migration in china summary obstacles to internal migration in china contribute to inefficiency inequality and land degradation academic and policy debate has primarily focused on discrimination against rural migrants on arrival in urban areas meanwhile barriers to migration out of rural areas have received less attention this paper examines the role of incomplete rural property rights in the migration decisions of rural households we examine the relationship between tenure insecurity and restrictions on land rentals and participation in outside labor markets the results indicate that tenure insecurity reduces migration this relationship is particularly pronounced on forest land which has implications for the conservation of recently replanted forest areas

forest loss monetary compensation and delayed re planting the effects of unpredictable land tenure in china abstract over the past 65 years forest tenure in china has oscillated unpredictably between private and village property regimes this policy induced uncertainty has distorted the harvesting decisions of individuals granted rights to grow trees and has lowered the value of china s forest output we provide an analytical framework for assessing these effects quantitatively understanding the consequences of this policy induced uncertainty is particularly important since china is currently engaged in an ambitious plan to increase its domestic supply of timber to conduct this analysis we extend the literature on forestry economics when there is a risk of loss due to forest fire or pests we 1 take account of the possibility that replanting can only resume after an interval of uncertain length with immediate replanting as a special case 2 investigate the effects of compensation for such losses based only on the net value of the stand of trees at the time of the loss and 3 compare it to compensation that would leave the wealth and rotation decisions of the farmer unaffected by the presence of uncertainty

china s sloping land conversion program does expansion equal success this paper uses a 2003 household survey to examine implementation and impacts of china s sloping land conversion program we find that land targeting has been strongly influenced by program goals but that mistargeting also occurred using a treatment effects approach to evaluate program impact we find evidence of positive impact on cropping husbandry and total income though the results are not robust enough to support government claims of huge gains we also find evidence that lack of participant choice could be dampening program impacts and that allowing households autonomy could lead to improvement in program cost effectiveness and outcomes

grain versus food a hidden issue in china s food policy debate abstract the paper examines the likely pattern of china s food trade in the future should china s food trade policy be adjusted to accommodate its comparative advantage differing from the common perception that china s overall food sector will follow the path of grain trade and face an ever growing trend of net imports this study has found an evolving pattern of exchanging food for food in china over the last 15 years the pattern is in part characterized by strong export expansion of selected food products such as vegetables and fruits aquatic products etc the economic rationale behind the pattern is examined through a comparison of relative costs among alternative food products in china the policy implications of the study are discussed

households decisions to participate in china s sloping land conversion program and reallocate their labour times is there endogeneity bias abstract past impact evaluations of china s largest ecological restoration program have assumed the absence of self selection endogeneity in the likelihood and extent of participation using appropriate testing procedures and a panel dataset of 1000 households over 11 years in two primary provinces we found evidence of self selection in household behavior of generating off farm income but the hypothesis was rejected that there was a significant self selection component in households decision to participate in the program and generate farming income evaluations ignoring the self section for off farm labor were found to be biased and overly positive on program income impact self selection should thus be explicitly included unless there is counter evidence in any study of this kind

income related inequalities in mental health in great britain analysing the causes of health inequality over time using regression techniques this paper estimates the level of income related health inequality in gb in 1992 and 1998 inequality is decomposed to investigate which socio demographic factors are important contributors to health differences the paper includes a range of measured and subjective income variables to control for absolute income a relative deprivation measure is included to test the impact of income inequality on health inequality it is found that subjective financial status is a major determinant of ill health and makes a major contribution to income related inequalities in health relative deprivation is an important contributor for women but not for men

designing payments for environmental services in theory and practice an overview of the issues abstract payments for environmental services pes have attracted increasing interest as a mechanism to translate external non market values of the environment into real financial incentives for local actors to provide environmental services es in this introductory paper we set the stage for the rest of this special issue of ecological economics by reviewing the main issues arising in pes design and implementation and discussing these in the light of environmental economics we start with a discussion of pes definition and scope we proceed to review some of the principal dimensions and design characteristics of pes programs and then analyze how pes compares to alternative policy instruments finally we examine in detail two important aspects of pes programs their effectiveness and their distributional implications pes is not a silver bullet that can be used to address any environmental problem but a tool tailored to address a specific set of problems those in which ecosystems are mismanaged because many of their benefits are externalities from the perspective of ecosystem managers pes is based on the beneficiary pays rather than the polluter pays principle and as such is attractive in settings where es providers are poor marginalized landholders or powerful groups of actors an important distinction within pes is between user financed pes in which the buyers are the users of the es and government financed pes in which the buyers are others typically the government acting on behalf of es users in practice pes programs differ in the type and scale of es demand the payment source the type of activity paid for the performance measure used as well as the payment mode and amount the effectiveness and efficiency of pes depends crucially on program design

inequalities in health some international comparisons there have been many attempts to compare various dimensions of inequality between different countries including particularly those relating to income and wealth however there have been relatively few international studies of inequalities in health 2 given that as has been noted by economists as eminent as kenneth arrow and amartya sen 3 individuals states of health are contributors to welfare comparable in impact to income or wealth holdings this relative poverty of health studies is surprising it cannot be explained by lack of data such studies of health inequality as do exist generally concern mortality and the data situation here is significantly better than that for other welfare indicators such as income there are extensive data available for a large number of countries although the quality varies see united nations 1982 it is likely to be generally higher than that for income data moreover there are fewer methodological problems associated with the data for obvious reasons mortality is easier to define than income and there is no problem equivalent to that of defining the income unit

a hybrid fiat commodity monetary system in this paper i describe a monetary system in which backing is provided for the government s liabilities by way of contingent resort to taxes the system is studied within the context of a one good pure exchange model of two period lived overlapping generations in which aside from various uniform boundedness assumptions considerable diversity is allowed both within and across generations two results are established i the existence of at least one perfect foresight competitive equilibrium and ii the pareto optimality of any such equilibrium the monetary system studied has some of the features of a commodity money system with a large seignorage spread between bid and ask prices one crucial feature of the system is that the government by taxing stands ready at any time to convert its outstanding liabilities into the commodity at an announced price in an important sense the hybrid scheme is a mixture of a fixed supply fiat scheme and a pure tax transfer scheme a social security scheme it makes some use of market pricing of net government indebtedness and some use of taxes and transfers its one advantage vis a vis the fixed supply fiat scheme is that any equilibrium under the hybrid scheme is pareto optimal for the fixed supply fiat scheme one can at best demonstrate that there exists an optimal equilibrium it is well known that there can exist nonoptimal equilibria under that scheme the presumed advantage of the hybrid scheme vis a vis the pure tax transfer scheme is its lesser use of taxes and transfers i say presumed because the framework i set out is not rich enough to imply that less use of taxes and transfers is preferable to more use of taxes and transfers

decomposing world health inequality this study explores global inequality in health status and decomposes it into within and between country inequality we rely on standardized height as our health indicator since it avoids the measurement pitfalls of more traditional measures of health such as morbidity mortality and life expectancy it also avoids measurement problems associated with using monetary variables such as income or expenditure across time or place to compare welfare our calculation of world height inequality indicates that in contrast with similar research on income inequality within country variation is the source of most inequality rather than the differences between countries

income related inequality in life years and quality adjusted life years abstract we estimate the income related inequality in sweden with respect to life years and quality adjusted life years qalys we use a large data set from sweden with over 40 000 individuals followed up for 10 16 years to estimate the survival and quality adjusted survival in different income groups for both life years and qalys we discover inequalities in health favouring the higher income groups for men women in the youngest age group 20 29 years the number of qalys is 43 7 45 7 in the lowest income decile and 47 2 49 0 in the highest income decile

china s sloping land conversion program institutional innovation or business as usual abstract china s sloping land conversion program slcp is the largest land retirement reforestation program in the developing world having the goal of converting 14 67 million hectares of cropland to forests by 2010 4 4 million of which is on land with slopes greater than 25 and an additional soft goal of afforesting a roughly equal area of wasteland by 2010 pending successful completion it could represent a 10 20 increase in china s national forest area and a 10 decrease in current cultivated area in contrast to china s other forest sector policies slcp uses a public payment scheme that directly engages millions of rural households as core agents of project implementation and has the stated principals of volunteerism thus insofar as current or future de facto program implementation involves decentralized voluntary grassroots participation slcp represents an important departure from business as usual in how china manages its forest resources this work draws upon current available research of the program and uses a 2003 household and village level survey conducted by the center for chinese agricultural policy cas to examine program design implementation and outcomes to date results indicate that significant problems in design and implementation exist with these including shortfalls in subsidies delivered lack of respect of the principals of volunteerism and insufficient technical support and budgeting for local implementation costs more fundamentally some program goals appear to be based on common misperceptions regarding the linkages between forests and watershed services overall slcp contains both innovative elements volunteerism and the direct engagement of farmers as well as components that hark back to policies and mindsets of decades past the program s top down simplified contract structure lack of sufficient consultation with local communities and rural households and campaign style mobilization the paper concludes by providing four main suggestions to improve the program 1 increase local community input in design and implementation and ensure that households have full autonomy in participation choice 2 improve technical support and budgeting for local administrative costs and capacity building 3 clarify the environmental services targeted and verify the measures needed to acquire these services and 4 integrate slcp into an overall package of complementary policies aimed at the rural sector

inequality aversion health inequalities and health achievement this paper addresses two issues the first is how health inequalities can be measured in such a way as to take into account policymakers attitudes towards inequality the gini coefficient and the related concentration index embody one particular set of value judgements by generalising these indices alternative sets of value judgements can be reflected the other issue addressed is how information on health inequality can be used together with information on the mean of the relevant distribution to obtain an overall measure of health achievement

grain for green versus grain conflict between food security and conservation set aside in china summary this paper examines the conflict that may exist between conservation and food security in china policymakers and scholars are debating whether or not conservation set aside programs threaten food security to address the debate we describe china s conservation set aside program known as grain for green and compare it with similar programs outside of china we then use data that we collected to measure the production and price impacts of the program on china s grain economy since 1999 our simulations find that grain for green has only a small effect on china s grain production and almost no effect on prices or food imports

volunteer and satisfied rural households participation in a payments for environmental services programme in inner mongolia using survey data from inner mongolia this paper explores the role of stakeholder engagement in the implementation of the sloping land conversion programme a payments for environmental services pes programme designed to restore forest in degraded land based on the idea that volunteerism and satisfaction with the programme s outcome are two important components of the programme s viability we successively analyse the intensity of households participation in the programme and their reported satisfaction with its economic achievement which we relate to their stated volunteerism we show that households participation intensity in the slcp is primarily driven by land and location characteristics and that these findings hold true whether or not the households voluntarily enrolled in the programme moreover as far as participants satisfaction can be interpreted as an indicator of potential long term support for the programme our findings also support plausible sustainability for the programme

payments for ecosystem services and wealth distribution abstract payment for ecosystem services pes has come to be regarded as a promising market based policy instrument to internalize environmental externalities the potential of pes is linked to the relationship between the willingness to pay wtp of ecosystem service buyers and the willingness to accept wta of ecosystem service providers this study uses an economic model to analyze factors that influence aggregate wtp and wta in a pes scheme we demonstrate that wealth disparity between ecosystem services buyers and providers can increase transactions furthermore when wealth disparity exists between the buyers and sellers the wealthier population would contribute more into the program and the poorer population would benefit more from it under these conditions pes can be socially progressive and mitigate preexisting economic inequality in this sense the economic model provides justification for integration of pes and poverty alleviation programs results of our study indicate that pes is not a universally applicable conservation tool and there is a need for a more targeted approach to the design and application of pes

infant mortality relative income and public policy do health outcomes depend on relative income as well as on an individual s absolute level of income we use infant mortality as a health status indicator and find a significant and positive link between infant mortality and income inequality using cross national data for 93 countries holding constant the income of each of the three poorest quintiles of a country s population we find that an increase in the income of the upper 20 of the income distribution is associated with higher not the lower infant mortality our results are robust and not just caused by the concave relationship between income and health the estimates imply a decrease in infant mortality by 1 5 for a one percentage point decrease in the income share of the richest quintile the overall results are sensitive to public policy public health care expenditure educational outcomes and access to basic sanitation and safe water can explain the inequality health relationship thus our findings support the hypothesis of public disinves

conditional cash transfers and payments for environmental services a conceptual framework for explaining and judging differences in outcomes we develop a conceptual framework elucidating the main determinants of the impact of conditional cash transfer cct and payments for environmental services pes programs using a simple multi agent model and evaluations of existing programs we show that 1 the share of the population who would meet the program s conditions in the absence of payments is a powerful predictor of program efficiency and that 2 program efficiency is eroded by selection bias people who already meet conditions self select into the programs at higher rates than others we then discuss possibilities for increasing efficiency and criteria for evaluating and choosing between ccts pes or other policy instruments

the distributional impact of health financing in europe a review this article summarises extends and updates previous empirical work on the distributional implications of alternative health care financing arrangements in a selection of european countries and the us on the one hand total health care payments are almost proportional to ability to pay in most countries this is predominantly driven by a high reliance on public financing on the other hand private payments out of pocket payments as well as private insurance premiums are highly regressive more extended reliance on private financing may therefore endanger the equitable nature of financing systems in addition private payments put a heavy burden on unfortunate households

the role of forest related income in household economies and rural livelihoods in the border region of southern china quarterly socioeconomic data from 240 households are used to study the links between forest related income and rural livelihoods in southern china results show average forest related income shares of 31 5 which was predominantly derived from cultivated non timber sources forest related income was important to households at all income levels although lower income households were more dependent due to a lack of other sources higher income households monopolized off farm income and had more land than low income households forest related income could be increased by making forest land more accessible to the poor improving productivity and removing constraints to smallholder engagement in timber marketing

effects of income inequality on population health new evidence from the european community household panel this study provides new evidence in order to explore the relationship between income inequality and health in the european union countries using new data from the european community household panel echp a variety of different specifications were tried using diverse dependent variables such as life expectancy at birth and child mortality the results show new support to the influence of income inequality on health indicators using aggregate data and panel techniques

the sloping land conversion program in china effect on the livelihood diversification of rural households summary through addressing the motivations behind rural households livelihood diversification this paper examines the effect of the sloping land conversion program slcp on livelihood diversification using a longitudinal household survey data set spanning the overall implementation of the slcp our results show that the slcp works as a valid external policy intervention to increase rural livelihood diversification in addition the findings demonstrate that the implementation of the slcp has had heterogeneous effects on livelihood diversification across different rural income groups the lower income group was more affected by the program in terms of income diversification

redefining payments for environmental services abstract the environmental economics and the ecological economics perspectives on payments for environmental services pes propose rather different views on how to define pes its key elements and on the role of pes in ecosystem conservation and rural development this paper compares these two perspectives and addresses the following questions what is an appropriate definition of pes grounded in the theory and practice underlying it what are the key design elements of pes what should the scope of pes be given the possible trade offs between efficiency and equity it is found that pes schemes should focus on cost effectiveness and best practice for positive livelihood impacts pes schemes should be transparent and provide additional services with conditional payments to voluntary providers

the effects of china s sloping land conversion program on agricultural households in the late 1990s china aimed to mitigate environmental degradation from agricultural production activities by introducing the world s largest payments for environmental services pes program the sloping land conversion program slcp in order to analyze its effects on agricultural households we develop a microeconomic agricultural household model ahm which can model the production consumption and non farm labor supply decisions of agricultural households in rural china in a theoretically consistent fashion based on this theoretical model we derive an empirical specification that we use to econometrically estimate the effects of the slcp and other exogenous factors using a large longitudinal farm household survey data set we estimate the empirical model with the hausman taylor estimation method the empirical results are generally consistent with the results of our theoretical comparative static analysis e g that the slcp significantly decreases agricultural production while the slcp increases non farm labor supply and total consumption in the yellow river basin these effects could not be observed in the yangtze river basin the recent reduction of the slcp compensation payment rates has had some notable but generally small effects

legal restrictions sunspots and peel s bank act the real bills doctrine versus the quantity theory reconsidered this paper considers two questions i what is the purpose of legal restrictions intended to separate money from credit markets and ii is such a separation desirable it is argued that historical legal restrictions meant to achieve such a separation were designed to preclude the occurrence of sunspot equilibria it is also shown that a coherent model can be constructed in which sunspot equilibria exist in the absence of legal restrictions but not if money and credit markets are separated nevertheless there is no obvious welfare justification for such a separation

taking stock a comparative analysis of payments for environmental services programs in developed and developing countries abstract payments for environmental services pes are an innovative approach to conservation that has been applied increasingly often in both developed and developing countries to date however few efforts have been made to systematically compare pes experiences drawing on the wealth of case studies in this special issue we synthesize the information presented according to case characteristics with respect to design costs environmental effectiveness and other outcomes pes programs often differ substantially one from the other some of the differences reflect adaptation of the basic concept to very different ecological socioeconomic or institutional conditions others reflect poor design due either to mistakes or to the need to accommodate political pressures we find significant differences between user financed pes programs in which funding comes from the users of the es being provided and government financed programs in which funding comes from a third party the user financed programs in our sample were better targeted more closely tailored to local conditions and needs had better monitoring and a greater willingness to enforce conditionality and had far fewer confounding side objectives than government financed programs we finish by outlining some perspectives on how both user and government financed pes programs could be made more effective and cost efficient

performance of an agro forestry based payments for environmental services project in mozambique a household level analysis there has been a paucity of research on the impacts of small scale payments for environmental services pes projects in developing countries the aim of this paper is to evaluate the household level impacts of a small scale agro forestry based carbon sequestration project in rural mozambique in 2006 questionnaire based interviews were conducted quarterly of 290 randomly selected households in the buffer zone of the gorongosa national park in mozambique we used the propensity score matching technique to assess the pes project impacts on household cash income consumption expenditure forest resource use and crop yields we found that in contrast to nonparticipant households pes participant households earned more cash income incurred more consumption expenditure collected less forest products and harvested lower quantities of agriculture crops in addition we found through decomposition analysis that there was a differential in pes income both male headed and high income households were being favoured as project benefit recipients future pes projects should focus on a payment scheme that can better ensure the benefit to all the participant households and also pay extra attention on the benefits distribution to the vulnerable households

the effectiveness of payments for environmental services we adopt a theory based approach to synthesize research on the effectiveness of payments for environmental services in achieving environmental objectives and socio economic co benefits in varying contexts our theory of change builds on established conceptual models of impact pathways and highlights the role of 1 contextual dimensions e g political institutional and socio economic conditions spatial heterogeneity in environmental service values and provision costs and interactions with pre existing policies and 2 scheme design e g payment type and level contract length targeting and differentiation of payments in determining environmental and socio economic outcomes to shed light on the overall effectiveness of payment schemes and its determinants we review counterfactual based empirical evaluations comparative analyses of case studies and meta analyses our review suggests that program effectiveness often lags behind the expectations of early theorists however we also find that theory has advanced sufficiently to identify common reasons for why payment schemes fail or succeed moreover payment schemes are often rolled out along with other policy instruments in so called policy mixes advances in theory and evaluation research are needed to improve our understanding of how such policy mixes interact with the targeted social ecological systems 2017

public financing of health expenditures insurance and health outcomes the effects of public financing of health expenditures insurance coverage and other factors on health outcomes are examined within health production models estimated using 1960 1992 data across 20 oecd countries mortality rates are found to depend on the mix of health care expenditures and the type of health insurance coverage increases in the publicly financed share of health expenditures are associated with increases in mortality rates increases in inpatient and ambulatory insurance coverage are associated with reduced mortality the effects of gdp health expenditures and age structure on mortality are similar to those in previous studies tobacco use alcohol use fat consumption female labour force participation and education levels are also significantly related to overall mortality rates increases in income inequality are associated with lower mortality rates suggesting that the negative relationship between inequality and health outcomes suggested by some previous studies does not remain w

participation in the world s first clean development mechanism forest project the role of property rights social capital and contractual rules abstract clean development mechanism cdm forest projects are perceived as an attractive way to both help mitigate climate change and transfer income to rural poor however to engender participation of small scale producers a cdm forest project must offer sufficient incentives while minimizing their costs of participation all the while respecting the need for additionality property rights social capital and contractual rules are critical in the success of cdm forest projects in this paper we ask what factors affect participation in the world s first cdm project established in guangxi province china using village level surveys we find that although the project facilitates participation through carbon pooling and a share holding system much of the project land remains unforested we find that the primary reasons for the unforested regions are constrained contractual rules property rights allocation disputes and low levels of social capital in some villages

competition and equity in health care markets we provide a model where hospitals compete on quality under fixed prices to investigate how hospital competition affects i quality differences between hospitals and as a result ii health inequalities across hospitals and patient severities the answer to the first question is ambiguous and depends on factors related to both demand and supply of health care whether competition increases or reduces health inequalities depends on the type and measure of inequality health inequalities due to the postcode lottery are more likely to decrease if the marginal health gains from quality decrease at a higher rate whereas health inequalities between high and low severity patients decrease if patient composition effects are sufficiently small we also investigate the effect of competition on health inequalities as measured by the gini and the generalised gini coefficients and highlight differences compared to the simpler dispersion measures

equilibrium traits of durable commodity money abstract a dynamic model of utility maximizing agents explains why scarce durable commodities are typically monetary the model provides quantitative criteria for distinguishing between monetary and non monetary durables and is also used to analyze symmetallic equilibria the model is then extended to analyze commodity backed paper money it is demonstrated that the backing generates trust in the paper money in the dynamic consistency sense the model predicts regular devaluations as an equilibrium phenomenon but finds such behavior to be efficient finally the results are integrated to make a technical point about dynamic models of pure fiat money