defining chronic poverty comparing different approaches in this study we discuss two methods commonly used in the literature to measure chronic poverty the permanent income approach where the chronically poor are those whose mean income over time is below the poverty line and the spells approach where the chronically poor are those households who are below the poverty line half of the time or more we check the differences between these two methods considering also several household characteristics the index we use is that of foster greer and thorbecke fgt with and when each method identifies the chronically poor which could be different individuals by each method and shows the percentage of the chronically poor while when the methods also take into account the depth of poverty our main goal is to show the differences between the two methods so that policymakers would have different perspectives on the problem of chronic poverty and could make decisions on this basis the results show that in the data used the permanent method and the spells

a search theoretic model of legal and illegal currency abstract using a search theoretic model of money we explore the conditions under which two currencies domestic and foreign will co exist despite legal restrictions on the use of foreign currency for internal trade we study how changes in government policy i e its enforcement of currency laws through fines or the rate of enforcement affects the acceptability of illegal currency the equilibrium value of both currencies and the implicit exchange rate first we construct a model with indivisible goods to show conditions under which legal currency is fully acceptable but illegal currency circulates with varying acceptability we then introduce bargaining to determine prices in legal and illegal currency we show that some enforcement polices can create multiple equilibria while others will not also some methods of enforcement are capable of driving the illegal currency out of circulation while others are not

economic mobility and poverty dynamics in developing countries this study provides an introduction to this special issue of the journal of development studies on economic mobility and poverty dynamics in developing countries in addition to providing a conceptual framework it outlines how the contributions fit into the extant literature a series of regularities emerge across these studies the poor consist of those who are always poor poor at all dates and those who move in and out of poverty with the latter group tending to be strikingly large such movements in and out of poverty are apparent when looking at poverty in either absolute or relative terms changes in returns to endowments can be a potent source of increased incomes finally seemingly transitory shocks can have long term consequences the study concludes by drawing out the policy implications of these regularities

persistent expected and innate poverty estimates for semi arid rural south india 1975 1984 this paper uses nine years of panel data on 170 rural households in southern india to calculate intertemporal measures of poverty these include measures of 1 expected poverty that identify households likely to remain poor on average during any year 2 innate poverty that identify households that are poor owning to deep rooted characteristics that cannot easily be changed in the short run and 3 persistent poverty that identify households whose incomes fall below a fixed poverty line over a number of years the poverty rates estimated for the sample with the three measures are 61 percent 48 percent and 22 percent respectively c 1993 academic press inc copyright 1993 by oxford university press

fiat money as a store of value in an experimental market abstract the time path of the value of fiat money is studied in an experimental market in this market players can achieve pareto superior allocations by trading goods for money at fixed nominal prices however the finite horizon makes the value of money unstable as players learn not to hold money near the horizon we investigate the value of money in stationary replications of the model where subjects trade off the increased value of money as a medium of exchange against the chances of holding worthless money as the role of money as a store of value deteriorates

poverty persistence and transitions in uganda a combined qualitative and quantitative analysis despite uganda s impressive reduction in income poverty during the 1990s recent evidence has shown there to be substantial mobility into and out of poverty this paper represents one of the first attempts to combine qualitative and quantitative information to understand the factors and processes underlying poverty transitions and persistence in some instances similar factors are identified by both qualitative and quantitative approaches including lack of key physical assets high dependency ratios and increased household size in other instances though one approach identifies additional factors not so easily identified by the other for example the impacts of excessive alcohol consumption in many cases the paper argues that there is considerable value added in combining the two approaches allowing us to provide a much richer understanding of many of the processes underlying poverty and poverty transitions

are some groups more vulnerable to macroeconomic shocks than others hypothesis tests based on panel data from peru abstract which socio economic groups are most vulnerable to welfare declines during a macroeconomic shock after clarifying the difference between poverty and vulnerability this paper presents an analytical framework and applies it to panel data from peru major findings are 1 households with better educated heads are less vulnerable 2 female headed households are no more vulnerable than male headed households 3 households with more children are more vulnerable 4 transfer networks that assist the poor in relatively stable periods do not protect them during a major shock unless they originate from outside peru and 5 peru s social security program is targeted neither to vulnerable nor to poor households but other transfer programs are better targeted

a search theoretic approach to monetary economics the essential function of money is its role as a medium of exchange the authors formalize this idea using a search theoretic equilibrium model of the exchange process that captures the double coincidence of wants problem with pure barter one advantage of the framework described here is that it is very tractable the authors also show that the model can be used to addre ss some substantive issues in monetary economics including the potenti al welfare enhancing role of money the interaction between specializat ion and monetary exchange and the possibility of equilibria with multip le fiat currencies copyright 1993 by american economic association

gift exchange versus monetary exchange theory and evidence abstract we study the lagos and wright 2005 model of monetary exchange in the laboratory with a finite population of sufficiently patient agents this model has a unique monetary equilibrium and a continuum of non monetary gift exchange equilibria some of which pareto dominate the monetary equilibrium we find that subjects avoid the gift exchange equilibria in favor of the monetary equilibrium we also study versions of the model without money where all equilibria involve non monetary gift exchange we find that welfare is higher in the model with money than without money suggesting that money plays a role as an efficiency enhancing coordination device jel c92 d12 e40 z13

slipping into and out of poverty the dynamics of spells this paper examines the dynamics of poverty previous analyses have examined either fluctuations in the male heads earnings or the frequency of poverty periods over a fixed time frame our approach depends on a definition of spells of poverty using this methodology we find that the majority of poor persons at any time are in the midst of a rather long spell of poverty the methodology also allows us to estimate that less than 40 percent of poverty spells begin because of a drop in the heads earnings while 60 percent of the spells end when the heads earnings increase thus researchers must focus on household formation decisions and on the behavior of secondary family members there has been a dramatic resurgence recently of discussion of the underclass the discussion is reminiscent of debates about poverty during the 1960s when the notions of a culture of poverty particularly as popularized by michael harrington s other america 1962 dominated both intellectual and policy thinking the idea of an underclass seems inconsistent however with much of the research on the dynamics of poverty during the 1970s that research using new longitudinal data seemed to show that the bulk of the poor were poor for only a few years the research also showed that the poor were a very heterogeneous group including a small minority of persistently poor the persistence of poverty is of interest both for understanding the phenomenon and for developing policy claims about dependency and separate life styles among the poor rest on assumptions about the long term nature of poverty questions

dollarization and currency exchange abstract we use a dual currency money search model to study dollarization agents hold portfolios consisting of two currencies one of which is risky we use numerical methods to solve for the steady state distributions of currency portfolios transaction patterns and value functions as risk increases agents increasingly use the safe currency as a medium of exchange dollarization occurs furthermore the safe currency trades for multiple units of the risky currency this type of currency exchange and the corresponding nominal exchange rate are often observed in black market or unofficial currency exchange markets in developing countries due to decentralized trading a distribution of exchange rates arises whose mean and variance change in predictable ways when currency risk increases

identifying deprivation profiles in spain a new approach usually an indirect approach for measuring deprivation or poverty is used with poverty lines however some studies have used a direct approach to measure deprivation or poverty the aim of this study is improving the identification of the poor people the central point of the concept of deprivation used is related to the opportunity to have or do something therefore deprivation means an inability to get the goods facilities and opportunities which are usual in the household environment since all of the needed variables are categorical the latent class model is used to solve this problem because it is the best model to achieve this objective

legal restrictions and international currencies an experimental approach abstract this paper integrates theory and experiments to explore how policy rules related to government interventions can affect economic allocations and the international status of a currency using a two country two currency search model we study two types of government interventions 1 legal restrictions impacting a seller s ability to accept a foreign currency and 2 reductions to the cost a seller must pay to accept a foreign currency the first intervention can be viewed as a way to capture a decrease in capital controls while the second can be viewed as a way to explore the impact of reducing information costs associated with using a foreign currency our results indicate that abolishing legal restrictions that impact a seller s ability to accept a foreign currency can increase both quantities traded and the number of trades involving two types of currencies additionally the international status of currencies is significantly enhanced when sellers face very low foreign currency acceptance costs

is economic growth increasing disparities a multidimensional analysis of poverty in the lao pdr between 2003 and 2013 abstractthe asian story of miraculous growth and poverty reduction has reinforced mainstream views of development that equate high and sustained economic growth with progress in human wellbeing but understanding development only in terms of economic growth is not sufficient this paper offers a different perspective on possible effects of laos s transition from a subsistence oriented economy to a market oriented economy we used a multidimensional poverty approach with panel data for the years between 2003 and 2013 findings suggest that benefits were not equally distributed 50 per cent of people moved in and out of poverty and the other half was either non poor 37 or always poor 13

combining quantitative and qualitative methods in assessing chronic poverty the case of rwanda this paper addresses the issue of chronic poverty in rwanda an issue which has not been addressed specifically in the policy debate despite the fact that it is likely to be widespread in part this has reflected lack of available evidence in that the conventional sources used to analyze chronic poverty are not available we argue in this paper that by judicious combination of existing qualitative a high quality nationwide participatory poverty assessment and quantitative sources a household survey it is possible to identify and characterize a clearly distinct group of chronically poor households whose characteristics are different from the poor as a whole

are auction revenues affected by rising art buyers premia the case of early american art the steady rise in the premiums charged to art buyers at auction above hammer price has been underway since 1992 this article using a stable and bounded sample of repeat purchase of american works created before 1950 reveals that this tact has reduced hammer prices for that art however renewed and hyper competitive efforts to bring more and higher quality art to market by the two main houses sotheby s and christie s have resulted in general profitability nevertheless we calculate that a rise in buyers premia at sotheby s a publically traded company has reduced revenues and profits below their potential in the absence of such increases

poverty in palanpur the meaning and identification of poverty are examined using three indicators of standard of living in the north indian village of palanpur the first is intended as a measure of apparent prosperity based on the personal assessments of investigators after intensive field work in the village over the full agricultural year 1983 84 the other two are income in 1983 84 and a measure of permanent income obtained by averaging incomes from four surveys conducted over a twenty six year interval a comparison of these three indicators shows that income measured in any one year may give a misleading impression of the incidence of poverty the risk of poverty for households is calculated vulnerability is high among low caste households and those which are involved in agricultural labor categories however are not homogeneous for example whereas the landless and widows are more likely to be poor some of such households are quite well off it is argued that poverty in a good agricultural year is a better indicator of sustained poverty than poverty in a bad year occupational mobility out of agricultural labor is low and changes in the distribution of land are largely accounted for by demographic processes such as household splits

simulating the impact of policy upon chronic and transitory poverty in rural pakistan anti poverty programmes often seek to improve their impact by targeting households for assistance according to welfare measures in a single time period however a growing literature shows the importance to poor households of fluctuations in their welfare from month to month and year to year this study uses a five year panel of 686 households from rural pakistan to investigate the magnitude of chronic or transitory poverty making an explicit adjustment for measurement error the impact of two types of policies those designed to smooth incomes and those designed to promote income growth on the severity of chronic and transitory poverty is examined since the largest part of the squared poverty gap in our sample is transitory large reductions in poverty can be achieved by interventions designed to smooth incomes but reducing chronic poverty in the long term requires large and sustained growth in household incomes the level and variability of incomes is then modelled as a function of household char

measuring chronic poverty without a panel abstract a new method of decomposing cross sectional poverty estimates into chronic and transient components is demonstrated using data from a recent household survey in papua new guinea this method is simpler than previously used panel methods because it does not require data on every household in every period the only requirement is that a subset of the surveyed households have a repeat observation made on their welfare indicator some time after the initial observation in the setting considered the chronic and transient components of headcount poverty are roughly equal while three quarters of the mean poverty gap is transient in the sense of being due to within year fluctuations in expenditures

secondary currency an empirical analysis abstract many cases exist of multiple currency usage throughout history as two leading examples secondary currencies were widespread during both the great depression in the united states and the 2002 recession in argentina what are the determinants of multiple currency usage and what is the effect on economic activity both issues are empirically addressed using individual level surveys collected by the authors in argentina during 2002 and 2003 the evidence supports the theoretically predicted determinants of secondary currency acceptability put forth in monetary theory in particular findings show that the acceptability of the secondary currency increases when the supply of national currency is low the relative transaction cost of the secondary currency is low and the individual trading technologies are less effective moreover the acceptability of the secondary currency has real effects on economic activity among those who use the secondary currency the monthly income gain is more than 15 of the average argentine s monthly income excluding trades of used goods this amounts to a 0 6 increase in gdp

the behavior of the exchange rate in the genetic algorithm and experimental economies this paper studies the behavior of the exchange rate in the kareken wallace overlapping generations economy with two currencies in which decision rules are updated using the genetic algorithm the analysis shows that a stationary monetary equilibrium of the kareken wallace model is not stable under the genetic algorithm dynamics the fluctuations in the genetic algorithm exchange rate are driven by fluctuations in the portfolio fractions which change over time in response to the inequality between the rates of return on two currencies further both the genetic algorithm simulations and the experiments with human subjects were characterized by continuing fluctuations of the exchange rate with first period consumption values close to a stationary value

secondary currency acceptance experimental evidence with a dual currency search model abstract motivated by the use of non legal tender currencies in regions experiencing economic turmoil and by the growing use of cryptocurrencies such as bitcoin i examine in a controlled experimental laboratory setting the acceptance of a secondary currency when a primary currency already circulates in an economy the underlying model is an indivisible goods indivisible money dual currency search model similar to that in kiyotaki and wright 1993 and curtis and waller 2000 in such models there are two pure nash equilibria total acceptance or total rejection of the secondary currency and one unstable mixed equilibrium this mixed equilibrium is considered an artifact of the indivisibility of money and goods in the model and is often ignored i find that when a significant friction in this case the inability to barter is introduced the equilibrium tends towards complete acceptance of the secondary currency conversely when barter is readily available to subjects the equilibrium tends towards total rejection as predicted by theory the tendency towards one equilibrium or the other appears to be influenced by the mixed equilibrium and the related basins of attraction

do changes in the labour market take families out of poverty determinants of exiting poverty in brazilian metropolitan regions using survival models we test whether short term changes in the labour market affect poverty duration data are from the brazilian monthly employment survey such a monthly dataset permits more accurate estimations of events than using annual data but its panel follows households for a short period then methods that control for both right and left censoring should be used the results are as follows households with zero income are not those with the lowest chances of exiting changes in aggregate unemployment do not affect poverty duration and increasing wages in the informal sector has a negative effect on poverty duration

assessing the extent and nature of chronic poverty in low income countries issues and evidence discussions of chronic poverty have mostly considered its monetary dimensions with current evidence suggesting that such poverty is much more transient than chronic but chronic poverty is a real and important phenomenon potentially more important quantitatively than it first appears once account is taken of different methodological approaches and inevitable measurement difficulties the chronic poor have distinctive characteristics such as lack of assets or high dependency rates which may account for their persistent poverty the paper argues that it is also necessary to develop concepts of chronic poverty further covering relevant nonmonetary dimensions and not just relying on panel data

an information based theory of international currency abstract this paper develops an information based theory of international currency based on search frictions private trading histories and imperfect recognizability of assets using an open economy search model with multiple competing currencies the value of each currency is determined without requiring agents to use a particular currency to purchase a country s goods strategic complementarities in portfolio choices and information acquisition decisions generate multiple equilibria with different types of payment arrangements while some inflation can benefit the country issuing an international currency the threat of losing international status puts an inflation discipline on the issuing country when monetary authorities interact in a simple policy game the temptation to inflate can lead optimal policy to deviate from the friedman rule the calibrated model can produce a welfare cost of losing international status for the issuing country larger than previous findings though estimates depend critically on inflation rates and information costs

income mobility in rural india this paper offers a detailed analysis of income mobility in rural india during 1968 1969 to 1970 1971 it focuses on 1 the pattern of upward income mobility among a section of the cultivating poor and 2 some of the key factors that enabled them to overcome poverty the analysis is based on a panel survey of 4118 rural households from the additional rural income survey the author assumes that 16 rupees per person per month at 1960 1961 prices constitutes an upper limit for a minimum daily calorie requirement in rural areas the analysis shows that out of those poor in 1968 over 1 2 ceased to be poor over 12 became poorer and about 36 remained poor without becoming poorer in 1970 out of the not poor in 1968 over 3 4 remained not poor while the remaining became poor in 1970 with the exception of the cultivating not poor who remained not poor all other categories reported substantial income changes in their average incomes during the period in question while the absolutely impoverished earned much lower incomes there were others particularly the poor ceased to be poor who registered impressive income gains comparison of the base year income levels of the 3 subsets of the cultivating poor suggested that on average the poorest of the poor fared better than the moderately poor this conclusion was further supported by an analysis of income mobility within a subset comprising the cultivating poor who ceased to be poor the bulk of these were relatively low income households that earned substantially higher incomes

toward a theory of international currency we use the framework of random matching games and develop a two country model of the world economy in which two national currencies compete and may be circulated as media of exchange there are multiple equilibria which differ in the areas of circulation of the two currencies in one equilibrium the two national currencies are circulated only locally in another one currency is circulated as an international currency there is also an equilibrium in which both currencies are accepted internationally we also find an equilibrium in which the two currencies are directly exchanged we first characterize the existence conditions of these equilibria in terms of the relative country size and the degree of economic integration and then use an evolutionary approach to equilibrium selection to explain the evolution of the international currency as the two economies become more integrated some welfare implications are also discussed for example a country can improve its national welfare by letting its own currency circulate internationally provided the domestic circulation is controlled for when the total supply is fixed however a resulting currency shortage may reduce the national welfare

transient poverty poverty dynamics and vulnerability to poverty an empirical analysis using a balanced panel from rural china china s economic reforms starting in the late 1970s have resulted in rapid economic growth with annual growth in gross domestic product averaging greater than 10 percent per year for more than thirty years accompanying this rapid growth in national accounts have been rapid and widespread reductions in poverty with these reductions in poverty however there has often been observed an increase in income inequality both between as well as within rural and urban sectors this rising income gap challenges the notion that economic reforms in china have been as successful as the poverty statistics would suggest in this paper we suggest that an alternative view would be to consider the effects of these reforms on changing the chronic nature of poverty and reducing household vulnerability to poverty using a balanced panel from rural china from 1991 through 2006 we find that most poverty among our sample has shifted from being chronic in nature to being transient with households either shifting into a state of being non poor moving in and out of poverty among our sample vulnerability to poverty has been declining over time but the declines are not uniform over time or space we decompose household vulnerability status into two proximate causes low expected income and high income variability finding vulnerability increasingly due to income variability additionally we demonstrate that vulnerable households have very different characteristics than non vulnerable households

a fundamental theory of exchange rates and direct currency trades in this paper we construct a two country search model to determine the nominal exchange rate between two fiat monies our model allows agents to use any currency to trade for goods in all countries however search frictions restrict agents opportunities for instantaneous arbitrage and hence make the nominal exchange rate determinate the nominal exchange rate depends on the two countries economic fundamentals including the stocks and growth rates of the two monies direct exchanges between currencies are essential and they imply a nominal exchange rate that is different from the relative price between the two currencies in the goods markets there are persistent violations of the law of one price and purchasing power parity in equilibrium despite the fact that prices are perfectly flexible and all goods are tradeable between countries nominal and real exchange rates can move together in the steady state in response to money growth shocks

on the indeterminacy of equilibrium exchange rates in this paper we consider a particular international economic policy regime the laissez faire regime the distinguishing features of which are unrestricted portfolio choice and floating exchange rates and as we show this regime although favored by many economists is not economically feasible it does not have a determinate equilibrium that is an implication of an overlapping generations model more basically it is an implication of the notion that money is wanted only in order to accomplish trades

currency areas and monetary coordination we integrate a monetary search model into open economy macro to analyze the gains from coordinating on inflation search frictions and local congestion lead to a determinate exchange rate between two currencies relative prices deviate from the law of one price because the deviations depend on the cross country differential in money growth each country is tempted to inflate to exploit the deviations policy coordination reduces inflation and improves welfare for all countries in contrast to traditional models the gains from coordination continue to exist even after each country optimally sets a direct tax on the foreign use of the country s currency

recessions and the vulnerable abstract this study evaluates the impact of recessions on households vulnerable to poverty the results indicate that recessions impact vulnerable households asymmetrically in comparison to the impact of growth on poor households we also demonstrate that this outcome is significantly influenced by a country s extent of development we argue that a direct consequence of the foregoing is that the efficacy of growth in poverty reduction tends to be under stated by conventional measures of poor households responses to economic growth and that safety nets need to be constructed to incorporate vulnerability to recessions

on money as a medium of exchange we analyze economies in which individuals specialize in consumption and production and meet randomly over time in a way that implies that trade must be bilateral and quid pro quo nash equilibria in trading strategies are characterized certain goods emerge endogenously as media of exchange or commodity money depending both on their intrinsic properties and on extrinsic beliefs there are also equilibria with genuine fiat currency circulating as the general medium of exchange we find that equilibria are not generally pareto optimal and that introducing fiat currency into a commodity money economy may unambiguously improve welfare velocity acceptability and liquidity are discussed

auctions and the price of art the value of most important works of art is established by public auction either directly by an actual sale or indirectly by reference to other sales how the auction system works is thus a critical determinant of how the public s preferences are translated into the evaluation of artistic work the auction system is central in the determination of the incentives for artistic work and the efficiency of the auction system is a key determinant of the cost of creating and distributing works of art this paper contains a review of the burgeoning new research of the last decade that has been designed to shed light on how the art auction system actually works what it indicates about price formation and how well it performs we begin our discussion in section 2 with a short description of the mechanics of the auction system and then organize the remainder of our discussion around two major topics the first topic concerns how auction prices can be used to determine and compare overall price movements within the art market and other markets and the second topic concerns how the auction mechanism influences prices we

are art auction estimates biased this article considers whether presale auction estimates are unbiased predictors of price when no sales are considered utilizing a newly constructed sample of over 500 works by eight early twentieth century american artists unbiased presale auction estimates in predicting price while expected are generally not supported in previous work but these studies excepting one do not include no sales in the calculations in order to study the question we employ a standard approach that uses an inverse mills ratio arising from a sample selection probit to correct for selection bias we find that controlling for selection bias presale auction estimates appear to be biased downward and we offer possible reasons for this result

vested interest and biased price estimates evidence from an auction market this study employs a new data set from art auctions to examine the relationship between auctioneer presale price estimates and the long term performance of artworks we find that the price estimates for expensive paintings have a consistent upward bias over a long period of 30 years high estimates at the time of purchase are associated with adverse subsequent abnormal returns moreover the estimation error for individual paintings tends to persist over time these results are consistent with the view that auction house price estimates are affected by agency problems and that

is transient poverty different evidence for rural china we define transient poverty as the component of time mean consumption poverty at household level that is directly attributable to variability in consumption this can be thought of as a measure of vulnerability to falling consumption the non transient component then depends solely on mean consumption over time and we call this chronic poverty using robust semi parametric methods and household panel data for rural china we test whether transient poverty is determined by a process that is similar to chronic poverty commonly identified causes of poverty in this setting have weak explanatory power for transient poverty and some of the factors determining transient poverty do not matter to chronic poverty or even have the opposite effect successful policy responses to chronic poverty may still leave considerable transient poverty

revisiting forever gained income dynamics in the resettlement areas of zimbabwe 1983 96 this study examines income dynamics for a panel of households resettled on former white owned farms in the aftermath of zimbabwe s independence there are four core findings i over a 13 year period 1983 96 there has been an impressive accumulation of assets and a dramatic increase of crop incomes ii the rise of crop incomes is partly due to asset accumulation but largely to increased asset returns hi differences between households in initial conditions such as previous farming experience have few persistent effects and iv income growth has been widely shared income inequality has fallen sharply and the largest percentage increases in incomes are recorded by households that initially had the lowest incomes

production trade prices exchange rates and equilibration in large experimental economies we study market equilibration in laboratory economies that are larger and more complex than any that have been studied experimentally to date complexity is derived from the fact that the economies are international in economic structure with multiple input output and foreign exchange markets in operation the economies have twenty one markets and due to the fact that they have roughly fifty agents the economies are characterized by several hundred equations in spite of the complexity and interdependence of the economy the results demonstrate the substantial power of the general equilibrium model of perfect competition to predict the direction of movement of market level variables empirical patterns in the convergence process are explored and described

do monetary and nonmonetary indicators tell the same story about chronic poverty a study of vietnam in the 1990s this paper investigates whether monetary and nonmonetary indicators tell the same story about chronic poverty using a unique panel data from vietnam in the 1990s defining chronic poverty as occurring when an individual is monetarily poor stunted malnourished or out of school in both waves of the panel the overlap and correlation between subgroups of the chronically poor are shown to be modest some but not all nonmonetary indicators are more persistent and complement monetary indicators of chronic poverty taking account of the multiple dimensions of chronic poverty cannot be a simple additive exercise

a unified framework for monetary theory and policy analysis search theoretic models of monetary exchange are based on explicit descriptions of the frictions that make money essential however tractable versions of these models typically make strong assumptions that render them ill suited for monetary policy analysis we propose a new framework based on explicit micro foundations within which macro policy can be studied the framework is analytically tractable and easily quantifiable we calibrate the model to standard observations and use it to measure the cost of inflation we find that going from 10 percent to 0 percent inflation is worth between 3 and 5 percent of consumption much higher than previous estimates

the lucky few amidst economic decline distributional change in cote d ivoire as seen through panel data sets 1985 88 this article is an exploratory exercise in using panel data sets to investigate distributional change in cote d ivoire during the second half of the 1980s the panels made it possible to highlight and quantify mobility of the same households across poverty classes over time we found that there were a lucky few who improved their standard of living amid general decline detailed investigations revealed that the lucky few were fairly numerous and the probability of escaping poverty was quite high even for the very poorest these lucky few were widespread regionally although in some socio economic groupings the poor had higher chances of escaping poverty

poverty transition and persistence in ethiopia 1994 2004 summary this study analyzes the persistence of poverty in both rural and urban areas in ethiopia during 1994 2004 the key finding is that households move frequently in and out of poverty but the difficulty of exiting from poverty like the chance of avoiding slipping back increases with the time spent in that state and varies considerably between male and female headed households our results imply that it is important to design anti poverty policies both to hinder households from slipping into extreme poverty and to minimize the length of the poverty spell for households once they have fallen into it

competing currencies in the laboratory we investigate competition between two intrinsically worthless currencies as a result of decentralized interactions between human subjects we design a laboratory experiment based on a simple two country two currency search model to study factors that affect circulation patterns and equilibrium selection

one kind of freedom poverty dynamics in post apartheid south africa abstract a 1993 south african living standards survey documented the legacy of apartheid in the form high levels of inequality and human insecurity drawing on a 1998 re survey of households in the 1993 study this paper explores whether this legacy has been superseded or whether apartheid s end has been only one kind of freedom that has left households in a poverty trap from which they cannot escape after proposing a theoretically grounded dynamic poverty typology that distinguishes stochastic from structural poverty transitions the paper goes on to estimate that significant numbers of the south african poor are potentially trapped in a structural poverty trap and lack the means to escape poverty over time

indeterminacy of equilibria in a hyperinflationary world experimental evidence the authors design and study an olg experimental economy where the government finances a fixed real deficit through seigniorage the economy has continua of nonstationary rational expectations equilibria and two stationary rational expectations equilibria the authors do not observe nonstationary rational expectations paths observed paths tend to converge close to or somewhat below the low inflation stationary state the adaptive learning hypothesis is consistent with the data in selecting the low inflation stationary state rational expectations equilibrium as a long run stationary equilibrium nevertheless simple adaptive learning models do not capture the market uncertainty or the biases observed in the data copyright 1993 by the econometric society

emergence of money as a medium of exchange an experimental study findings are reported from an experiment that implements a search theoretic model of money as a medium of exchange the question is whether subjects learn to adopt the same commodities as media of exchange that the model predicts will be used in equilibrium it is reported that subjects have a strong tendency to play fundamental rather than speculative strategies even in environments where speculative strategies yield higher payoffs some possible motivations for subjects behavior are examined and it is concluded that subjects are mainly motivated by past payoff experience as opposed to the marketability considerations that the theory emphasizes

the dynamics of welfare gains and losses an african case study this article uses panel survey data for cote d ivoire to investigate the determinants of welfare gains and losses of households over time a first difference model is estimated which takes account of initial conditions for urban areas it was found that human capital is not only a key explanatory factor for levels of welfare but also the most important endowment to explain welfare changes over time in rural areas physical capital especially land and farm equipment mattered most household size and composition and socioeconomic characteristics of the household also affected welfare changes policy implications are discussed

currency competition in a fundamental model of money abstract we study how two fiat monies one safe and one risky compete in a decentralized trading environment the currencies equilibrium values their transaction velocities and agents spending patterns are endogenously determined we derive conditions under which agents holding diversified currency portfolios spend the safe currency first and hold the risky one for later purchases we also examine when the reverse spending pattern is optimal traders generally favor dealing in the safe currency unless trade frictions and the currency risk is low as risk increases or trading becomes more difficult the transaction velocity and value of the safe money increases

vulnerability seasonality and poverty in ethiopia most studies examining the dynamics of welfare have found large fluctuations in consumption over relatively short periods suggesting substantial short run movements in and out of poverty the consequence is that cross section poverty research may not be able to identify the poor in this study we explore this short run variability further we use a data set on a panel of 1450 households in different communities in rural ethiopia surveyed thrice over 18 months on average year to year poverty is very similar however we find high variability in consumption and poverty over the seasons and year by year econometric analysis suggests that consumption is affected by idiosyncratic and common shocks including rainfall and household specific crop failure while households respond to seasonal incentives related to changing labour demand and prices the results imply that a larger number of households are vulnerable to shocks than implied by the standard poverty statistics while some of the non poor in the

playing with money abstract experimental work in monetary economics is usually based on theory that incorporates an infinite horizon yet hard constraints on laboratory sessions lead to finite times when the game must with probability 1 end and then simple backward induction implies monetary equilibria cannot exist hence these experiments cannot evaluate subjects ability to settle on the use of money as a medium of exchange that ameliorates trading frictions as an equilibrium outcome to address this we present some finite horizon games where monetary exchange is an equilibrium outcome and report some experimental results using these games

how strong is the evidence for the existence of poverty traps a multicountry assessment introducing this special collection on asset dynamics and poverty traps this article assesses evidence on these issues across eight panel data sets in six countries generally not previously considered in this perspective it examines the importance of assets in relation to chronic poverty and uses parametric and non parametric methods to test for dynamic asset based poverty traps the article finds that chronically poor households have lower levels of assets than others though does not find evidence of the non convexities which would imply a multiple dynamic poverty trap from this base the article introduces the remainder of the articles in this collection which set out many promising approaches to further develop and improve methods and approaches for looking at poverty traps in future

experimental evidence on money as a medium of exchange abstract this paper presents an experimental examination of kiyotaki and wright s 1989 model of how money can arise as a medium of exchange while the results generally support the hypothesis that individuals are willing to utilize a good as a medium of exchange the trading patterns of a portion of the individuals deviated from the predicted patterns simulation studies suggest that while these deviations may have initially been a rational response by these subjects they persisted after they became less than optimal

government transaction policy media of exchange and prices abstract we study government transaction policies in search theoretic models of money we model government as a subset of agents who are subject to the same random matching technology and other constraints as private agents but who behave in an exogenous way regarding which objects they accept in trade and at what price the objective is to see how these policies affect private agents strategies and hence the set of equilibria we analyze how the effects depend on factors like the size of government the intrinsic properties of money and the availability and efficacy of substitutes like barter or foreign currency journal of economic literature classification numbers c78 e31 e42

on the measurement of poverty official statistics in the united states and the united kingdom show a rise in poverty between the 1970 s and the 1980 s but scepticism has been expressed with regard to these findings in particular the methods employed in the measurement of poverty have been the subject of criticism this paper re examines three basic issues in measuring poverty the choice of the poverty line the index of poverty and the relation between poverty and inequality one general theme running through the paper is that there is a diversity of judgments which enter the measurement of poverty and that it is necessary to recognize these explicitly in the procedures adopted there is likely to be disagreement about the choice of poverty line affecting both its level and its structure in this situation we may only be able to make comparisons and not to measure differences and the comparisons may lead only to a partial rather than a complete ordering the first section of the paper discusses the stochastic dominance conditions which allow such comparisons illustrating their application by reference to data for the united states the choice of poverty measure has been the subject of an extensive literature and a variety of measures have been proposed in the second section of the paper a different approach is suggested considering a class of measures satisfying certain general properties and seeking conditions under which all members of the class which includes many of those proposed give the same ranking those sceptical about measures of poverty often assert that poverty and inequality are being confounded the third section of the paper distinguishes four different viewpoints and relates them to theories of justice and views of social welfare

mixed fortunes a study of poverty mobility among small farm households in chile 1968 86 this study is based on a panel sample of small farm households drawn from eight rural communities in chile interviewed in 1968 and 1986 the incidence and intensity of poverty based on primary income increased over this period however after including earnings from the minimum employment programmes and public transfers both the headcount ratio and squared poverty gap fell markedly between the two surveys mobility analysis showed more households moving out of than into poverty of those households who became impoverished around half may have suffered a transitory decline in income in 1986 the other half experienced pauperisation as a result of investing in projects with negative rates of return investing in the accumulation of human capital by their children sustaining a large rise in the household s dependency ratio or suffering political discrimination in the labour market per capita income was positively related to schooling of the household head in 1968 land ownership in 1986 and living in