on the robustness of robustness checks of the environmental kuznets curve hypothesis since its first inception in the debate on the relationship between environment and growth in 1992 the environmental kuznets curve hypothesis ekc hereafter has been subject of continuous and intense scrutiny the most recent line of investigation criticizes the ekc hypothesis on more fundamental grounds in that it stresses the lack of sufficient statistical testing of the empirical relationship and questions the very existence of the notion of ekc attention is in particular drawn on the stationarity properties of the series involved per capita emissions or concentrations and per capita gdp and in case of presence of unit roots on the cointegration property that must be present for the ekc to be a well defined concept only at that point can the researcher ask whether the long run relationship exhibits an inverted u pattern on the basis of panel integration and cointegration tests for sulfur stern 2004 and perman and stern 1999 2003 have presented evidence and forcefully stated that the ekc hypothesis does not exist in this paper we ask whether similar strong conclusions can be arrived at when carrying out tests of system fractional integration and cointegration as an example we use the controversial case of carbon dioxide emissions the results show that more ekcs come back into life relative to traditional integration cointegration tests however we confirm that the ekc hypothesis remains a fragile concept

micro incentives and municipal behavior political decentralization and fiscal federalism in argentina and mexico summary this article analyzes the mixed results of political and fiscal decentralization in latin america by comparing taxing and spending policies in six cities in argentina and mexico consistent with previous studies we find that decentralization has been frustrated by overconcentration of power at the provincial level and large vertical fiscal imbalances though we characterize these as functional elements in a system of redistributive policy making that benefits a wide array of provincial and municipal actors we seek to add a new dimension to the literature by arguing that micro level incentives conditions and circumstances particular to specific places are more important determinants of municipal behavior than macro level structures those policy and institutional changes intended to make officials more responsive to local conditions federalism local elections intergovernmental transfers and own source revenues we conclude that the theory of decentralization relies on a flawed conception of the causal mechanisms that are hypothesized to create responsiveness in local officials

indirect effects of an aid program how do cash transfers affect ineligibles consumption cash transfers to eligible households indirectly increase the consumption of ineligible households living in the same villages this effect operates through insurance and credit markets ineligible households benefit from the transfers by receiving more gifts and loans and by reducing their savings thus the transfers benefit the local economy at large looking only at the effect on the treated underestimates the impact one should analyze the effects of this class of programs on the entire local economy rather than on the treated only and use a village level randomization rather than selecting treatment and control subjects from the same community

currency substitution and western european monetary unification the recent history of european monetary affairs may be interpreted as a slow movement towards the establishment of a european currency union characterized by fixed exchange rates and perhaps eventually a common european currency until very recently the desirability of european monetary union was analysed in terms of the traditional optimum currency area framework in that analysis the incentive for currency union comes from the potential improvements in efficiency in resource allocation from the use of a single money in a trade area recently however the question of the independence of monetary policy under flexible exchange rates has spawned a growing literature on currency substitution which includes implications for currency 2 union the earlier work suggested that a major benefit of flexible rates would be the liberation of domestic monetary policy from external balance concerns so that policy could be aimed singularly at internal balance 3 the currency substitution cs literature has demonstrated that if the currencies of two countries are close substitutes to money demanders then the central banks of these countries cannot follow independent monetary policies even under flexible exchange rates 4 the degree of currency substitution is an important empirical question and the analysis that follows should prove informative in determining the incentive for european monetary union is the european monetary system ems goal of reducing exchange rate fluctuations necessarily indicative of a european sensitivity to disturbances with a substantial part of the problem coming from substitution between monies girton and roper 1980 p 157 or rather a result of the traditional drive towards integration as envisioned by optimum currency area theory the following sections will suggest an answer

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

assimilation and the earnings of young internal migrants this paper investigates if young internal migrants in the united states experience economic assimilation as they adapt to their new residential location using data from the national longitudinal survey of youth the authors examine how the hourly earnings of interstate migrants are affected by the number of years they have spent in their destination state their study indicates that internal migrants initially earn less than natives but that this wage differential disappears within a few years moreover the initial wage disadvantage of internal migrants depends upon the distance moved and economic conditions in the destination labor market copyright 1992 by mit press

between estimates of the emissions income elasticity abstract recent papers by wagner and vollebergh et al point out some fundamental econometric problems with traditional methods of estimating the environmental kuznets curve ekc and propose alternative approaches that avoid these issues wagner notes that traditional methods do not take into account the presence of powers of unit root variables and cross sectional dependence in the data while vollebergh et al point out that the time effects are not uniquely identified in the ekc model the between estimator is a simple estimator that also addresses the concerns of these authors it makes no a priori assumption about the nature of the time effects and is likely to provide consistent estimates of long run relationships in real world data situations i apply several common panel data estimators including the between estimator to oecd and global carbon and sulfur emissions datasets the between estimates of the sulfur income elasticity are 0 732 in the oecd and 1 067 in the global data set and the estimated carbon income elasticity is 1 612 in the oecd and 1 509 globally

climate policy bucket or drainer abstract worldwide industry is responsible for about 40 of greenhouse gas ghg emissions making it an important target for climate policy energy intensive industries may be particularly vulnerable to higher energy costs caused by climate policy if companies cannot offset rising energy costs and would face increased competition from countries without climate policy they may decide to relocate their industrial production to the countries without climate policy the resulting net effect of climate policy on ghg emissions in foreign countries is typically referred to as carbon leakage carbon leakage may lead to higher global ghg emissions due to the use of less advanced technology in less developed countries based on a literature review of climate policy earlier environmental policy and analyses of historical trends this paper assesses the carbon leakage effects of climate policy for energy intensive industries reviews of past trends in production location of energy intensive industries show an increased global production share of non annex 1 countries however from empirical analyses we conclude that the trend is primarily driven by regional demand growth in contrast climate policy models show a strong carbon leakage even though future climate policy may have a more profound impact than environmental policies in the past the modelling results are doubtful leakage generally seems to be overestimated in current models especially as potential positive spillovers are often not included in the models the ambiguity of the empirical analyses and the modelling results warrants further research in the importance of production factors for relocation

foreign currency deposits and the demand for money in developing countries abstract this paper examines the relative demands for domestic and foreign currency deposits by residents of developing countries a dynamic currency substitution model that incorporates forward looking rational expectations is specified and estimated for a group of ten developing countries the results indicate that the foreign rate of interest and the expected rate of depreciation of the parallel market exchange rate are important factors in the choice between holding domestic money or foreign currency deposits abroad furthermore the model appears to fit the data better than a conventional partial adjustment model

interstate migration in mexico variations on the todaro theme abstract this study of migration in mexico is based upon a modified todaro approach and utilizes census data in a simultaneous equations model of 13 variables it is unique in several ways a it introduces proxy variables for employment probability and cost of migration that have not heretofore been found in the literature but for which data are often available b it illustrates that in some important cases census data have advantages not available through surveys and c it finds that in some sense land reform in mexico may have operated perversely finally the study opens a new avenue for the study of informal sector growth

identifying reduced form relations with panel data the case of pollution and income abstract in this paper we propose a solution to the non robustness that plagues the estimation of inverted u shaped relationships using panel data such as the relation between pollution and income when dependent and independent variable like pollution and income are both time related separating the effect of the independent variable from time effects brings about a fundamental identification dilemma the imposition of restrictions on the controls might drive the shape of the relationship between the dependent pollution and independent income variables our solution consists of imposing the very weak constraint that arbitrary cross sectional units have the same relationship we apply our methodology to two widely studied cases namely so 2 and co 2 emissions interestingly our estimates are insensitive to the required subjective choices but also strongly differ from the literature so far we find consistent positive income effects for both cases and time effect estimates with a clear u shaped trend for so 2 emissions but only slightly so for co 2 emissions

targeting the poor evidence from a field experiment in indonesia the brief summarizes the targeting the poor evidence from a field experiment in indonesia for the period december 2008 january 2009 this paper reports an experiment in 640 indonesian villages on three approaches to target the poor proxy means tests pmt where assets are used to predict consumption community targeting where villagers rank everyone from richest to poorest and a hybrid defining poverty based on ppp 2 per capita consumption community targeting and the hybrid perform somewhat worse in identifying the poor than pmt though not by enough to significantly affect poverty outcomes for a typical program elite capture does not explain these results instead communities appear to apply a different concept of poverty

who moves a logit model analysis of inter provincial migration in canada this paper addresses the topic of inter provincial migration in terms of the basic question who moves panel logit models of the probability that an individual changes his or her province of residence from one year to the next over the 1982 1995 period are estimated using tax based longitudinal data it is found that moving is i inversely related to the home province s population size presumably reflecting local economic conditions and labour market scale effects while language also plays an important role ii more common among residents of smaller cities towns and especially rural areas than those in larger cities iii negatively related to age marriage and the presence of children for both men and women iv positively related to the provincial unemployment rate the individuals receipt of unemployment insurance except entry men having no market income except for entry men and entry women and the receipt of social assistance especially for men v slightly positively related

estimation of short run and long run elasticities of energy demand from panel data using shrinkage estimators this article discusses the problem of obtaining short run and long run elasticities of energy demand for each of 49 states in the united states using data for 21 years estimation using the time series data by each state gave several wrong signs for the coefficients estimation using pooled data was not valid because the hypothesis of homogeneity of the coefficients was rejected shrinkage estimators gave more reasonable results the article presents in a unified framework the classical empirical bayes and bayes approaches for deriving these estimators

currency substitution the recent experience of bolivia abstract one of the more puzzling aspects of bolivia s economic performance since 1986 has been the rapid increase in the share of foreign currency deposits in the domestic banking system that has occurred notwithstanding low inflation rates and a high degree of external stability an analysis of the determinants of currency substitution in bolivia shows that economic variables are statistically significant but have a fairly low explanatory power compared to variables that measure the degree of inertia in the currency substitution process hence conventional fiscal and monetary measures may not be sufficient to reverse the process of currency substitution this points toward an interesting asymmetry where currency substitution increases rapidly with macroeconomic instability but is difficult to reverse even after years of macroeconomic stability

the hysteresis of currency substitution currency risk vs network externalities abstract it is widely documented that currency substitution using foreign money in transactions increases in periods of high inflation but does not decline once inflation is reduced the paper uses survey data from bulgaria which experienced this phenomenon to investigate the origins of this ratchet effect we find that expected devaluation of the domestic currency while relatively high does not play a major role in sustaining the dollarization of transactions conversely preferences for the use of foreign money are strongly influenced by people s perception that foreign money is already widely used in the economy

rationality of migration the paradigm of a rational individual acting on the earnings enhancing benefits of migration is subjected to statistical scrutiny using data from turkey results with robust selectivity correction support the rationality hypothesis both migrants and nonmigrants chose the option in which they had comparative advantage however the estimated gain from moving is negative for a substantial portion of migrants whereas a minority realize very high returns this suggests that migration is a lottery individuals are willing to invest in a proposition that has a high probability of yielding negative returns because of the potential for a very large payoff

seigniorage and the case for national money in countries with high rates of inflation there is typically movement away from the use of the local currency the paper analyzes the costs and benefits of using a local currency with emphasis on the seigniorage foregone by using a foreign money even if it should be desirable for a country to fix its exchange rate it still loses seigniorage if it does not use its own money the case for using a foreign money then turns largely on the superior discipline imposed on domestic policymakers by removing their control over the money supply alternative methods of imposing discipline are discussed estimates of the amount of seigniorage raised by different governments are presented seigniorage amounts in some cases to about 10 percent of government revenue estimates are also presented of both the annual flow and one time stock costs of giving up use of domestic currencies and instead using the dollar the flow cost is typically about 1 percent of gnp and the stock cost is around 10 percent of gnp

convergence of per capita carbon dioxide emissions in the eu legend or reality abstract designing appropriate environmental and energy policies in order to meet the kyoto protocol s carbon dioxide co 2 reduction targets in the european union eu requires a detailed examination and thorough understanding of co 2 emission trends across the eu member states this paper investigates whether co 2 emissions have converged across 22 european countries over the 1971 to 2006 period the bayesian shrinkage estimation method is employed to do this work and the results reveal the following first the hypothesis of absolute convergence in per capita co 2 emissions is supported and a slight upward convergence is observed second the fact that countries differ considerably in both their speed of convergence and volatility in emissions makes it possible to identify different groups of countries third the results with respect to convergence do not vary much once the share of industry in gdp is accounted for in a conditional convergence analysis however a decreasing share of industry in gdp seems to contribute to a decline in per capita emissions these findings may carry important implications for both national and eu environmental policies

a nested logit migration model with selectivity in this paper we specify a multiple choice migration model with selectivity we estimate this model using observations on individuals drawn from the 1971 census of venezuela there are two main innovations in this paper we apply a correction for the presence of selectivity in wage equations in the context of a multiple choice migration model and we apply a less restrictive technique for modelling multiple discrete choices than in previous studies we study the choices of individuals among 23 states of venezuela each individual is observed to have chosen one state so one wage is observable per person our hypothesis is that individuals choose where to locate on the basis of an evaluation of costs and benefits associated with choosing each state we measure the benefits associated with choosing a given state by means of the wage a person could earn in this state since we observe only one wage for each person we have to impute the unobserved wages for the states this person did not choose in order to study the role of wages in migration however it is possible that unobserved factors which affect both an individual s choice of location and his wages may result in sample selection bias if we try to estimate state specific wage equations by ols on the basis of the self selected samples we apply an estimator proposed by lee 1983 to estimate state specific wage equations free from sample selection bias the wage equations permit us to investigate whether individuals who choose particular states earn different wages from observationally identical individuals drawn from the population at random in the context of a developing country where internal migration flows are large evidence on the selectivity of migration will enhance our understanding of an important labor market adjustment mechanism evidence that people who choose particular locations earn more in those locations than would observationally identical individuals drawn at random from the population positive selection will suggest that migration decisions are made according to the principle of comparative advantage in modelling the choice of location we test whether subsets of states are more highly similar to each other than to other states unobserved similarities between states may arise because of similar amenities or economic conditions which are not otherwise explicitly controlled for in the model we implement the

internal and international migration in mexico 1995 2000 using micro data from mexico and us 2000 population censuses and following a multi choice variant of roy s 1951 model this article pools into one model the determinants of internal and international migration in mexico while paying explicit attention to the potential problem of self selection the results reveal that ignoring multiple destinations in the migration decision might lead to erroneous inferences about the determinants of migration and the type of selection after controlling for wage differences the results suggest that single adult men with low schooling levels tend to migrate to the us while married women and men with higher levels of schooling tend to migrate within mexico we also found that there are strong differences between domestic and international social networks

migration networks and microenterprises in mexico are migration networks associated with lower capital costs or the alleviation of capital constraints we examine these questions with data measuring access to remittance flows among small scale entrepreneurs in mexico using a survey of more than 6000 self employed workers and small firm owners located in 44 urban areas of mexico we estimate the impact of attachment to migration networks on the level of capital investment the capital output ratio sales and profits of microenterprises the impact is identified from the geographic pattern of migration from mexico driven by the completion of rail lines in the early 1900s for the full sample of firms we find that migration is associated with higher investment levels and higher profits but not higher sales the strongest effects on investment are in the categories of automobiles tools and inventories when the sample is limited to firms in high capital sectors investment sales and profits all increase with attachment to the migration networks suggesting that attachment to the migration network alleviates capital constraints in those sectors

marital status and earnings of young men a model with endogenous selection it is a matter of course in applied labor economics to presume that marital status is a predetermined contributor to earnings among young males we find no evidence to support that proposition we estimate a model of earnings determination that permits endogenous selection of marital status our estimates are based on a sample of young employed males from the michigan panel survey of income dynamics they indicate that marital status viewed in this manner does not significantly shift the mean earnings profile our sensitivity tests indicate that this conclusion is robust with respect to a variety of alternative specifications excerpt

migration and the urban to rural earnings difference a sample selection approach in particular i conjecture that in many parts of rural africa a self selection mechanism may occur that sorts migratory and nonmigratory workers in a manner consistent with the notion that those workers who are most likely to benefit from migration do so and workers least likely to benefit from migration do not in other words individuals sort themselves into migratory and nonmigratory workers given their characteristics for instance rural workers with relatively more human capital skills are most likely to migrate because the discrepancy is larger between earnings from rural unskilled jobs that underutilize their skills and earnings from skilled jobs in urban areas that more fully realize their potential given their characteristics therefore participation in the migratory labor stream is strongly assumed to be influenced by the workers anticipated earnings as a migrant versus his or her anticipated earnings from working in the rural area as a nonmigrant it is thus conceivable that the urban to rural earnings difference would be positive for workers with relatively greater skills and that their incidence of migration may be higher this study tests this hypothesis excerpt

the heterogeneity of carbon kuznets curves for advanced countries comparing homogeneous heterogeneous and shrinkage bayesian estimators we investigate carbon kuznets curves ckc relationships for advanced countries grouped in policy relevant groups north america and oceania south europe north europe by means of various homogeneous heterogeneous and shrinkage bayesian panel estimators we try to provide an answer to the question how sensitive are the ckc estimates to changes in the level of parameters heterogeneity we do find that in coherence with their policy and economic commitment to carbon reductions and environmental market based instruments implementation bell shapes are present only for northern eu which leads the group of advanced countries the other two lag behind we show for the first time that ckc shapes are present if we net out europe of the southern and less developed countries this is coherent with the kuznets paradigm the negative side of the tale is that they characterize a bunch of few countries other advanced countries lag behind and are far from reaching a ckc dynamics heterogeneous and bayesian

trade the pollution haven hypothesis and the environmental kuznets curve examining the linkages abstract this paper examines the extent to which the ekc inverted u relationship can be explained by trade and specifically the migration or displacement of dirty industries from the developed regions to the developing regions the pollution haven hypothesis phh using detailed data on north south trade flows for pollution intensive products the evidence for the phh is assessed emissions of 10 air and water pollutants are then estimated controlling for trade openness structural change and dirty north south trade flows evidence of pollution haven effects is found although such effects do not appear to be widespread and appear to be relatively small compared to the roles played other explanatory variables

economic models for the environmental kuznets curve a survey abstract the environmental kuznets curve ekc refers to an inverted u shaped relationship between some pollutant level and per capita income i e the environmental quality deteriorates at early stages of economic growth and subsequently improves at a later stage since the early 1990s a considerable number of empirical studies have been conducted on the ekc and although there is no conclusive proof it has been recognized that the ekc emerges as an empirical regularity however some recent studies cast doubt on the concept and methodology of empirical results and evidence of the existence of the ekc has been questioned in fact how economic growth affects the environmental quality i e the shape of the ekc is still controversial in order to identify the actual relationship between the environmental quality and economic growth it is essential to develop economic models from various points of view this paper overviews the current stage of theoretical models that explain such relationship

carbon intensity and economic development 1962 1991 a brief exploration of the environmental kuznets curve the relationship between national carbon dioxide emissions intensity co2 emitted per unit of gross domestic product and level of economic development has changed from essentially linear in 1962 to strongly curvilinear in 1991 the inverted u curve reached statistical significance briefly in the early 1970s and increasingly since 1982 this is the result not of groups of countries passing through stages of development but of efficiency improvements in a small number of wealthy countries combined with worse performance in poor and middle income countries the curvilinear relation is deepening and is likely to persist due to constraints on poorer countries in the world economy

economic growth trade and energy implications for the environmental kuznets curve abstract the environmental kuznets curve ekc hypothesis asserts that pollution follows an inverted u path with respect to economic growth the ekc has been explained in terms of structural changes in the composition of economic output and increased environmental regulation at higher income levels while some authors have incorporated the impact of trade policy orientation on the ekc the impact of the actual movement between countries of goods that embody pollution has not been considered this paper attempts to econometrically quantify the effect using pooled cross country and time series data the ekc hypothesis is examined with respect to commercial energy consumption the source of many serious environmental problems it was found that while both industrializing and industrialized countries have added to their energy requirements by exporting manufactured goods the growth has been substantially higher in the former at the same time industrialized countries have been able to reduce their energy requirements by importing manufactured goods exports of manufactured goods by industrialized countries has thus been an important factor in generating the upward sloping portion of the ekc and imports by industrialized countries have contributed to the downward slope

dollarization in post hyperinflationary argentina abstract this paper analyzes the continued dollarization of the argentine economy which experienced a rapid decline in inflation following its hyperinflations of the 1980s first a measure of dollar currency circulating in argentina is developed thereby improving upon previous studies of dollarization and currency substitution that focused on dollar deposit holdings only second cointegration analysis of peso money demand in argentina finds a negative ratchet effect from inflation the reduction in peso money demand attributable to the ratchet mirrors the estimated stock of all dollar assets held domestically by argentine residents consistent with the hypothesis of irreversible dollarization

convertibility risk and dollarization in mexico a vectorautoregressive analysis abstract using a general equilibrium model of dollarization in mexico i find a negative and significant relationship between the expected rate of peso depreciation and the dollarization ratio this result seemingly anomalous compared to previous studies of currency substitution is attributed to the convertibility risk associated with holding mexdollars several alternative explanations are either rejected or found to be of secondary importance the results imply that traditional methodologies used to test currency substitution and inferences drawn about the phenomenon should be revised in cases similar to mexico

mobility and the return to education testing a roy model with multiple markets self selected migration presents one potential explanation for why observed returns to a college education in local labor markets vary widely even though u s workers are highly mobile to assess the impact of self selection on estimated returns this paper first develops a roy model of mobility and earnings where workers choose in which of the 50 states plus the district of columbia to live and work available estimation methods are either infeasible for a selection model with so many alternatives or place potentially severe restrictions on earnings and the selection process this paper develops an alternative econometric methodology that combines lee s 1983 parametric maximum order statistic approach to reduce the dimensionality of the error terms with more recent work on semiparametric estimation of selection models e g ahn and powell 1993 the resulting semiparametric correction is easy to implement and can be adapted to a variety of other polychotomous choice problems the empirical work which uses 1990 u s census data confirms the role of comparative advantage in mobility decisions the results suggest that self selection of higher educated individuals to states with higher returns to education generally leads to upward biases in ols estimates of the returns to education in state specific labor markets while the estimated returns to a college education are significantly biased correcting for the bias does not narrow the range of returns across states consistent with the finding that the corrected return to a college education differs across the u s the relative state to state migration flows of college versus high school educated individuals respond strongly to differences in the return to education and amenities across states

information access income distribution and the environmental kuznets curve abstract recent empirical studies have tested the hypothesis of an environmental kuznets curve ekc focusing primarily on the relationship between per capita income and certain types of pollutant emissions given the stock nature of many pollution problems emissions only partially account for the environmental impacts moreover almost all of the studies have given consideration to little more than income levels as explanatory variables this paper empirically tests the hypothesis of the ekc existence for a stock sensitive indicator that is the percentage of protected area pa within national territory it does theorize that economic growth is a necessary condition in order to better address environmental issues but it also stresses that other variables income distribution education information accessibility may play a fundamental role in determining environmental quality contrary to other studies that mainly focus on the calculation of the income level corresponding to the transition point this paper is more concerned with the calculation of environmental quality corresponding to that transition point that is the minimum level of environmental quality that a country is willing to accept this paper highlights the idea that if the transition point is determined primarily by income level social policies determine the level of environmental quality corresponding to that point

transitional impacts of environmental policy in an endogenous growth model to explore the link between a tighter environmental policy and economic growth the authors employ an endogenous growth model with endogenous technological progress in abatement technologies the environment which is modelled as a renewable resource acts both as a public consumption good and as a public input into production the entire transition towards a new balanced growth path after a tightening of environmental policy is computed analytically the authors find sharp contrasts between short run and long run effects whereas the level and the growth rate of output may decline in the short run income growth may improve in the long run copyright 1996 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

seigniorage dollarization and public debt the lebanese civil war and recovery experience 1982 97 abstract the paper develops theoretical frameworks to explain the phenomena of seigniorage dollarization and public debt and then applies them to the lebanese macroeconomic situation over 1982 97 more specifically it analyzes the implications of seigniorage and dollarization to see what extent they were responsible for the inflation and exchange rate depreciations during the civil war period it also studies the sustainability of postwar debt the conclusions that emerge from the analysis are that budget deficits were only one of the reasons behind the war inflation and depreciations dollarization could still impose some problems for macroeconomic stability and tax reforms are essential for fiscal balance

the dollarization of latin america as a market enforced monetary reform evidence and implications monetary reforms are a response to past and present monetary conditions yet what happens when public confidence in the domestic currency is eroded but the government does not declare an official monetary reform it is likely that the public will substitute away from the low confidence domestic currency into a high confidence foreign currency to the extent that such substitutions are possible in other words as confidence in the domestic money declines money demanders will tend to substitute away from domestic money in favor of foreign money this is in effect a market based monetary reform on the demand side in place of an official supply side monetary reform this paper will consider such demand side substitutability in latin america and the official response monetary historians have chronicled many instances of monetary reform when an existing low confidence currency is replaced by a new monetary unit while historical episodes differ in regard to social and political circumstances it is safe to say that the economic circumstances leading to reform can be traced to a high and unstable rate of growth of the money supply for instance on september 29 1975 chile replaced the escudo with the chilean peso where one peso was defined as being equal to 1 000 escudos the chilean money supply had grown at an annual rate of 121 from 1971 to the time of the reform argentina introduced a new monetary unit the peso argentino on june 1 1983 where one new peso argentino was defined as being equal to 10 000 old pesos the argentine money supply had grown at an annual rate of 85 since 1979 these growth rates prior to monetary reform are substantially higher than the average latin american money growth rate over the 1972 83 period of 40

dollar currency in latin america a bolivian application abstract the stock of u s dollar currency held in bolivia is estimated using two alternative methods incorporating estimated dollar currency balances in m 2 results in more reasonable movements in velocity than the unbelievable gyrations in official velocity

migration self selection and earnings in philippine rural communities abstract estimated returns to schooling investments can be misleading if migration causes significant shifts in population distribution across time data gathered in rural philippine communities show that the more educated and experienced individuals are more likely to outmigrate causing a sample selection bias in the estimation of wage equations the observed wages were then lower than the conditional population mean of an entire cohort residing originally in the area controlling for self selection the wage returns to schooling and experience were higher finally the sample selectivity variable accounts substantially for the difference in the wages of men and women

self selection and the earnings of immigrants this paper analyzes the way in which the earnings of the immigrant population may be expected to differ from the earnings of the native population because of the endogeneity of the decision to migrate the empirical study shows that differences in the u s earnings of immigrants with the same measured skills but from different home countries are attributable to variations in political and economic conditions in the countries of origin at the time of migration excerpt

building state capacity evidence from biometric smartcards in india anti poverty programs in developing countries are often dicult to implement in particular many governments lack the capacity to deliver payments securely to targeted beneciaries we evaluate the impact of biometrically authenticated payments infrastructure smartcards on beneciaries of employment nregs and pension ssp programs in the indian state of andhra pradesh using a large scale experiment that randomized the rollout of smartcards over 158 subdistricts and 19 million people we nd that while incompletely implemented the new system delivered a faster more predictable and less corrupt nregs payments process without adversely aecting program access for each of these outcomes treatment group distributions rst order stochastically dominated those of the control group the investment was cost eective as time savings to nregs beneciaries alone were equal to the cost of the intervention and there was also a signicant reduction in the leakage of funds between the government and beneciaries in both nregs and ssp programs beneciaries overwhelmingly preferred the new system for both programs overall our results suggest that investing in secure payments infrastructure can signicantly enhance state capacity to implement welfare programs in developing countries

inflation and financial sector size abstract traditionally the cost of expected inflation has been seen as the shoeleather cost of going to the bank more often this paper focuses on the other side of these transactions i e on the increased production of financial services i construct a model in which households must make purchases either with money or with costly transactions services produced by firms in the financial services sector in the model a higher inflation rate leads households to substitute purchased transactions services for money balances thereby boosting the size of the financial services sector a test of the model using cross sectional data finds that the size of a nation s financial sector is strongly affected by its inflation rate the empirical results provide an alternative way to measure the costs of inflation these costs appear to be large

a panel data heterogeneous bayesian estimation of environmental kuznets curves for co2 emissions this article investigates the environmental kuznets curves ekc for co2 emissions in a panel of 109 countries during the period 1959 to 2001 the length of the series makes the application of a heterogeneous estimator suitable from an econometric point of view the results based on the hierarchical bayes estimator show that different ekc dynamics are associated with the different sub samples of countries considered on average more industrialized countries show evidence of ekc in quadratic specifications which nevertheless are probably evolving into an n shape based on their cubic specification nevertheless it is worth noting that the eu and not the umbrella group led by us has been driving currently observed ekc like shapes the latter is associated to monotonic income co2 dynamics the eu shows a clear ekc shape evidence for less developed countries consistently shows that co2 emissions rise positively with income though there are some signs of an ekc analyses of future performance neverthe

a climate change policy induced shift from innovations in carbon energy production to carbon energy savings abstract we develop an endogenous growth model with capital labor and carbon energy as production factors and three technology variables that measure accumulated innovations for carbon energy production carbon energy savings and neutral growth all markets are complete and perfect except for research for which we assume that the marginal social benefits exceed the marginal private benefits by factor four the model constants are calibrated so that the model reproduces the relevant global trends over the 1970 2000 period the model contains a simple climate module and is used to assess the impact of induced technological change itc for a policy that aims at a maximum level of atmospheric co2 concentration 450 ppmv itc is shown to reduce the required carbon tax by more than a factor 2 and to reduce costs of such a policy by half when we do not constrain aggregate r d expenditures to benchmark levels costs are further reduced numerical simulations show that knowledge accumulation shifts from energy production to energy saving technology we discuss reasons for differences between our results and earlier results reported in the literature

international migration self selection and the distribution of wages evidence from mexico and the united states we use the 1990 and 2000 mexican and u s population censuses to test borjas s negative selection hypothesis that the less skilled are those most likely to migrate from countries with high skill premia earnings inequality to countries with low skill premia earnings inequality we find that mexican immigrants in the united states are more educated than nonmigrants in mexico and were mexican immigrants to be paid according to current skill prices in mexico they would be concentrated in the middle of mexico s wage distribution these results are inconsistent with the negative selection hypothesis and instead suggest that there is intermediate selection of immigrants from mexico

social protection response to the covid 19 crisis options for developing countries the public health response to covid 19 in many countries has involved strict restrictions on movement and economic activity which threaten the livelihoods of economically vulnerable households in response governments are adopting emergency economic measures to provide households with some safety net we provide an overview of the policies that could form a comprehensive social protection strategy in low income and middle income countries with examples of specific policies that have been adopted our core argument is that these countries can cast an emergency safety net with extensive coverage if they use a broader patchwork of solutions than higher income countries these strategies could include expanding their social insurance system building on existing social assistance programmes and involving local governments and non state institutions to identify and assist vulnerable groups who are otherwise harder to reach