learning to believe in sunspots a number of authors have shown that competitive economies may possess sunspot equilibria that is rational expectations equilibria in which purely extrinsic uncertainty affects equilibrium prices and allocations 2 such results demonstrate that it does not require a lack of faith in the rationality of market participants to believe that competitive markets may be subject to purely speculative fluctuations driven solely by expectations 3 the mere existence of sunspot equilibria as solutions to a system of marketclearing conditions however might not be judged sufficient to indicate that competitive markets with rational participants could ever be subject to speculative instability the sunspot equilibria represent states of affairs in which agents act differently in the case of different realizations of the sunspot variable and it is rational for each agent to do so but it might be thought unlikely that the beliefs of all the participants in the market could ever come to be coordinated so as to bring about an equilibrium of that kind it is rational to believe that sunspots convey information about future states of affairs once the economy is in a sunspot equilibrium but why would rational agents ever begin to believe in such a thing so as to create the conditions under which the belief is rational in order to address such a question one must go beyond the mere statement of the conditions for equilibrium and discussion of what states of affairs satisfy them one must specify an explicit dynamic process according to which the beliefs of agents adjust when out of equilibrium any exercise of this kind is necessarily unsatisfactory as there is no univocal meaning for the postulate of rational behavior outside of an equilibrium it may well be the case that

perfect equilibria in a trade liberalization game the credibility of temporary protection is examined in a simple infinite horizon perfect information game of timing in which the domestic government uses the threat of future liberalization to induce the domestic firm to invest all pure strategy subgame perfect equilibria are cyclical and surprisingly one of them implements optimal temporary protection however this equilibrium fails to pass another credibility criterion called renegotiation proof the game has a unique stationary subgame perfect equilibrium in mixed strategies copyright 1990 by american economic association

some issues concerning interest rate pegging price level determinacy and the real bills doctrine abstract in a recent paper canzoneri henderson and rogoff have shown that it is possible for the monetary authority to peg the nominal interest rate without creating price level indeterminacy in a simplified version of the 1975 sargent wallace model the present paper begins by reviewing that result which involves a limiting case of a money supply rule that depicts the authority as responding to current values of the interest rate then it shows that there exists an alternative rule that will peg the nominal rate without creating indeterminacy but that this rule induces a different pattern of price level fluctuations next the paper considers whether indeterminacy will prevail if the authority tries to effect a peg in a third way by simply standing ready to buy and sell securities at the desired rate finally the implications of the foregoing results are drawn for arguments concerning the real bills doctrine and some critical comments are directed at the recent attempted rehabilitation of that doctrine by sargent and wallace

pro competitive effects of trade reform results from a cge model of cameroon abstract how likely is trade liberalization to produce efficiency gains in the presence of imperfect competition scale economies and higher than average wages in the modern sectors all common features in developing economies these features create a potential conflict to the extent that traditional notions of comparative advantage lead us to expect that the modern sectors will be squeezed with liberalization in this paper we investigate this issue by using an applied general equilibrium model calibrated to cameroonian data under perfect competition we find that the welfare effect is a wash since the beneficial consequence of expanded imports is offset by the reduction in employment in the modern high wage sectors under imperfect competition by contrast trade liberalization produces welfare gains of the order of 1 to 2 percent of income the key is the pro competitive effect of liberalization domestic firms in the modern sectors now perceive themselves as facing a higher elasticity of demand which spurs them to increase production

monetary and fiscal policy interactions in a new keynesian model with capital accumulation and non ricardian consumers the paper examines simple monetary and fiscal policy rules consistent with determinate equilibrium dynamics in the absence of ricardian equivalence under this assumption government debt turns into a relevant state variable which needs to be accounted for in the analysis of equilibrium dynamics the key analytical finding is that without explicit reference to the level of government debt it is not possible to infer how strongly the monetary and fiscal instruments should be used to ensure determinate equilibrium dynamics specifically we identify bifurcations associated with threshold values of steady state debt leading to qualitative changes in the local determinacy requirements

upgrading in global value chains lessons from latin american clusters it has been shown that clustering helps local enterprises in industrial districts overcome growth constraints and compete in distant markets in advanced and less developed countries nevertheless recent contributions have stressed that more attention needs to be paid to external linkages and to the role played by global buyers to foster upgrading at cluster levels in this study we contribute to this debate focusing on the analysis of the relationships existing between clustering global value chains upgrading and sectoral patterns of innovation in latin america we find that sectoral specificities matter and influence the mode and the extent of upgrading in clusters integrated in global value chains

does public insurance crowd out private insurance the cost of expanding public sector health programs depends critically on the extent to which public eligibility will cover just the uninsured or will crowd out existing private insurance coverage we estimate the extent of crowd out arising from the expansions of medicaid to pregnant women and children over the 1987 1992 period we estimate that approximately 50 percent of the increase in medicaid coverage was associated with a reduction in private insurance coverage this occurred largely because employees took up employer based insurance less frequently there is also some evidence that employers contributed less for insurance and that workers dropped coverage of dependents

the family and the state the immaturity of children sometimes precludes efficient arrangements between children and parents or others responsible for child care the difficulty in establishing efficient relations within families provides the point of departure for our interpretation of the heavy state involvement in the family the authors believe that a surprising number of state interventions mimic the agreements that would occur if children were capable of arranging for their care many regulations of the family improve the efficiency of family activities these interventions include subsidies to education and training social security and other old age support subsidies to births laws that limit access to divorce and the sale of children and laws that require parents permission for early marriage and other choices of children families that leave bequests can force children to repay parents for investments in human capital by reducing bequests therefore these families do not underinvest in childrens human capital by contrast families that do not leave bequests often poorer families do underinvest in children the state may subsidize schools and other training facilities to raise investments in children by poorer families to efficient levels authors modified

incentive effects of the u s welfare system a review the author would like to acknowledge support for prior work on this topic from the u s department of health and human services and helpful comments from three anonymous referees rebecca blank howard chernick john fitzgerald irwin garfinkel peter gottschalk edward gramlich david greenberg judith gueron james heckman v joseph hotz robert hutchens michael keane frank levy larry mead michael murray robert plotnick anuradha rangarajan philip robins howard rolston jeffrey smith and daniel weinberg all opinions and errors are those of the author alone

credibility of protection and incentives to innovate in recent trade policy debates it is often argued that temporary protection stimulates innovation this paper shows that the validity of the argument depends on the perceived credibility of protection policy if it is suspected that temporary protection will be removed early should innovation occur before its terminal date the protected firm invests less in r d than it does under free trade if it is expected that protection will be extended should no innovation have occurred by its terminal date investment falls below the free trade level and eventually to zero as the terminal date is approached

persistent poverty and informal credit abstract this paper explores the consequences of nonlinear wealth dynamics for the formation of bilateral credit arrangements to help manage idiosyncratic risk using original data on expected wealth dynamics social networks and informal loans among southern ethiopian pastoralist households we find that the threshold at which expected wealth dynamics bifurcate serves as a focal point at which lending is concentrated informal lending responds to recipients losses but only so long as the recipients are not too poor our results suggest that when shocks can have long term effects loans are best understood as providing a safety net rather than a scale neutral insurance mechanism furthermore the persistently poor are excluded from social networks that are necessary to obtain loans given in response to shocks

labor market opportunities and intrafamily time allocation in rural households in south asia this paper utilizes a time allocation survey of a four year panel of households from six villages in semi arid tropic rural india estimates of the inter relationships between adult male female and child market wage rates and time allocated to the market domestic production leisure and schooling by boys and girls are presented the role of individual unobservable heterogeneity and self selection into activity participation is also accounted for the overall results suggest the importance of the opportunity cost of time in intrafamily time use

transfer behavior in the health and retirement study measurement and the redistribution of resources within the family recent work by a number of economists has opened a debate about the role played by intergenerational transfers using the new health and retirement study hrs we are better able to address the issues involved contrary to the current literature on bequests we do not find that parents give transfers equally to all children rather we find that in the case of inter vivos transfers respondents give greaterfinancial assistance to their less well off children than to their children with higher incomes financial transfers to elderly parents are also found to be negatively related to the potential recipient s income these results hold both for the incidence of transfers and for the amounts in addition we allow for unobserved differences across families by estimating fixed effect models and find our results to be robust to these specifications a comparison of the hrs transfer data to other survey data demonstrates that the hrs is potentially quite useful for research on transfer behavior

inter vivos transfers and intergenerational exchange the surge of interest in intergenerational transfers in the past decade has sparked a debate over the motivation for them are transfers given out of altruism or part of an exchange while each motive is probably at work to some extent we know little about whether one motive predominates the question is relevant for issues concerning public income redistribution and inequality in the family but despite its importance empirical evidence about motives is scarce because of limited data we investigate a new data set the national survey of families and households which remedies many of the shortcomings of other data sets containing private transfer information we find that empirical patterns for inter vivos transfers i e transfers between living persons are more consistent with exchange than altruism

the connection between public transfers and private interfamily transfers abstract this paper investigates the anti poverty effectiveness of public transfers taking private transfer responses into account widespread altruistically motivated private transfers would neutralize the distributional impact of public transfers but exchange motivated transfers can reinforce the effects of public transfers on the distribution of economic well being the common technique for gauging anti poverty effectiveness subtracting public transfers from other income and measuring the poverty rate counterfactual yields results that are close to a more complex procedure that takes private transfer responses into account and some of the empirical findings suggest an exchange rather than altruistic motive for private transfers indicating that the effects of public transfers can be magnified by private behavior this is an exact reversal of the prediction that public transfers merely supplant private ones

intergenerational transfers and liquidity constraints a growing body of evidence indicates that liquidity constraints could affect a substantial proportion of u s consumers but little is known about why these constraints might exist an important but little explored issue is the relationship between inter vivos intergenerational transfers and liquidity constraints these transfers can ease borrowing constraints empirical transfer patterns match those predicted from a model in which transfers are allocated to liquidity constrained consumers in particular the distinction between current and permanent incomes of potential recipients is a key aspect of private transfer behavior the findings have important implications for our understanding of consumer behavior

how well do children insure parents against low retirement income an analysis using survey data from urban china abstract as population aging becomes more pronounced in the developing world the uneven implementation of social safety nets raises important questions as to how well traditional family based mechanisms insure elderly incomes when pension systems fail using a unique dataset from a recent household survey conducted in urban china we find evidence that private transfers respond to low household income of retired workers when income falls below the poverty line this finding is consistent with an altruistic motive for transfers at low levels of household income at the same time however the transfer response to elderly pre transfer income is not sufficient to fully cover shortfalls that arise with severe pension arrears and low retirement income

imports as competitive discipline the role of the productivity gap abstract this paper addresses the impact of foreign competition on the competitive advantage of domestic firms and the role of trade policy in an endogenous growth framework it shows that the impact of foreign competition on r d and productivity depends on the industry s relative position trade liberalization promotes innovation and enhances welfare in mature industries but hinders growth and leads to market exit in infant industries with a large productivity gap in the latter case temporary protection promotes the survival of the firm and increases welfare at the margin hence we integrate the old argument for the temporary protection of infant industries with the notion that foreign competition fosters innovation and productivity

aging and deflation from a fiscal perspective negative correlations between inflation and demographic aging were observed across developed nations recently to understand the phenomenon from a politico economic perspective we embed the fiscal theory of the price level into an overlapping generations model in the model successive short lived governments choose income tax rates and bond issues considering the political influence of existing generations and the policy response of future governments the model sheds new light on the traditional debate about the burden of national debt because of price adjustments the accumulation of government debt does not become a burden on future generations our analysis reveals that the effects of aging depend on its causes aging is deflationary when caused by an increase in longevity but inflationary when caused by a decline in birth rate numerical simulation shows that aging over the past 40 years in japan generated deflation of about 0 6 percentage points annually

do social protection transfers reduce poverty and vulnerability to poverty in pakistan household level evidence from punjab empirical studies in different developing countries have investigated the impact of social protection sp on ex post poverty however few studies analysed the impact of sp on ex ante vulnerability to poverty vtp this paper contributes to the literature by evaluating the impact of sp on vulnerability to poverty vtp and poverty rates among households in the punjab province of pakistan a hierarchical modelling approach is used to analyse the multiple indicator cluster survey mics 2011 data of about 90 000 households matching methods and simultaneous endogenous switching regression are used to control for potential selection bias and estimate average treatment effects our results show that sp has a positive impact in reducing household poverty and vtp but this impact is mainly driven by a short term flood relief cash transfer programme pension of government employees and households regular purchase from utility store network

stock market conditions and monetary policy in a dsge model for the u s abstract this paper investigates the interactions between stock market fluctuations and monetary policy within a dsge model for the u s economy first we design a framework in which fluctuations in households financial wealth are allowed but not necessarily required to exert an impact on current consumption this is due to the interaction in the financial markets of long time traders holding wealth accumulated over time with newcomers holding no wealth at all importantly we introduce nominal wage stickiness to induce pro cyclicality in real dividends additional nominal and real frictions are modeled to capture the pervasive macroeconomic persistence of the observables employed to estimate our model we fit our model to post wwii u s data and report three main results first the data strongly support a significant role of stock prices in affecting real activity and the business cycle second our estimates also identify a significant and counteractive response of the fed to stock price fluctuations third we derive from our model a microfounded measure of financial slack the stock price gap which we then contrast to alternative ones currently used in empirical studies to assess the properties of the latter to capture the dynamic and cyclical implications of our dsge model the behavior of our stock price gap is consistent with the episodes of stock market booms and busts occurred in the post wwii as reported by independent analyses and closely correlates with the current financial meltdown typically employed proxies of financial slack such as detrended log indexes or growth rates show limited capabilities of capturing the implications of our model consistent index of financial stress cyclical properties of the model as well as counterfactuals regarding shocks to our measure of financial slackness and monetary policy shocks are also proposed

the changing global geography of low technology labor intensive industry clothing footwear and furniture summary a basic approach to the geographic investigation of low technology labor intensive industries is sketched out by invoking notions of industrial organization locational agglomeration and spatial divisions of labor the distribution of the clothing footwear and furniture industries across the contemporary world is described on the basis of detailed published statistics special emphasis is accorded to similarities and contrasts in the geography of production between more developed and less developed countries i show that no matter what the level of development agglomeration tends to be a pervasive though not universal feature of these three industries global trading patterns in the three industries are subjected to extended investigation i examine international flows of finished products as well as production sharing activities involving various kinds of subcontracting arrangements between high wage and low wage countries i then attempt to demonstrate in theory how spatial agglomeration and international commodity flows function as mutually reinforcing phenomena via the play of increasing returns effects the significance of low wage low technology industries for processes of economic development is also stressed in the conclusion i suggest that the global geography of production is tending more and more to assume the form of a far flung mosaic of competing and collaborating agglomerations at various levels of productive capability and development

inter vivos transfers and intended bequests abstract empirical work on intergenerational transfers has focused on distinguishing between altruistic and exchange motivated behavior however these two models are unable to explain the strong tendency for inter vivos transfers to be negatively related to the income of the recipient while bequests bear no relationship to income this paper presents a new framework for analyzing transfers from parents to children that is more consistent with observed behavior than are the altruistic and exchange models alone in particular the model developed here predicts differing behavior with respect to inter vivos transfers and bequests due to liquidity constraints and uncertainty about the recipient s permanent income the empirical work uses data from the health and retirement study and the asset and health dynamics study the patterns observed in these data are consistent with earlier findings that inter vivos transfers go disproportionately to less well off children while bequests are divided equally across children further the results support the predictions of the model in that differences in inter vivos transfers arise from differences in current income while differences in bequests result when indicators of the children s permanent incomes differ

crowding out of private support to the elderly evidence from a demogrant in mexico abstract to examine whether private support dampens or reinforces the impact of redistributive policies this paper estimates the effect of an exogenous increase in the income of the elderly caused by a recent demogrant in mexico on the amount of private transfers they receive my instrumental variables strategy overcomes the endogeneity of income that typically contaminates estimates and unlike related studies that use natural or policy experiments in reduced form estimations it yields evidence of a positive bias this suggests that an unobservable characteristic is positively correlated both with income and private transfer receipt and that treating income as exogenous could lead to an underestimation of the crowding out effect in contrast my preferred estimates are negative significant and not far from minus one implying an almost complete crowding out my findings suggest that private transfers could neutralize the changes in the public transfers for the elderly

interest rate targeting abstract the paper develops a model in which the monetary authority successfully targets the nominal interest rate while also holding down the forecast variance of the price level the latter objective pins down the extent of monetary accommodation to shifts in the demand for money and other shocks and thereby makes determinate the levels of money and prices at each date empirical evidence for the united states suggests that the model s predictions accord reasonably well with observed behavior for nominal interest rates growth rates of the monetary base and rates of inflation

learning monetary policy and asset prices this working paper should not be reported as representing the view s of the imf the views expressed in this working paper are those of the author s and do not necessarily represent those of the imf or imf policy working papers describe research in progress by the author s and are published to elicit comments and to further debate

fiscal policy and liquidity traps with heterogeneous agents this paper explores global dynamics in a monetary model with limited asset market participation and the zero lower bound on nominal interest rates it is shown that a rise in government transfers to non ricardian consumers financed by debt based taxes to ricardian consumers is capable of escaping disinflationary paths typically convergent to a liquidity trap fiscal policy does not need to be unsustainable at the low inflation steady state to avoid liquidity traps as argued in the context of the standard single representative agent setup

social security in a moral economy an empirical analysis for java private transfer payments are modeled as outcomes of a constrained social choice pro blem facing donors the approach is applied to a large household leve l data set for java and hypotheses are tested concerning the performa nce of the moral economy as a social security system transfer be havior is found to be very different between rural and urban areas w hile transfer receipts and outlays are income inequality reducing in rural areas this is not the case in urban areas there is also evidence of transfers being targeted to disadvantaged households such as the sick elderly and for urban areas the unemployed copyright 1988 by mit press

intergenerational transfers and capital market imperfections evidence from a cross section of italian households abstract we investigate whether a system of family finance exists and to what extent it is able to offset capital market imperfections a simple model of intergenerational transfers implies that the probability of a liquidity constrained consumer receiving a transfer is negatively correlated with his current endowment and positively correlated with his future resources we test this proposition using a recent survey of italian households in which both transfer recipients and liquidity constrained households are readily observable the results indicate that private transfers help to ease borrowing constraints however a substantial number of liquidity constrained households remain after transfers have been made

motivations to remit evidence from botswana in this article a theory of motivations to send remittances is described and tested with data from botswana altruism is one of the motivations tested and found to be an insufficient explanation for remittances among migrants in botswana a refinement of the model stipulates a modified altruism or enlightened self interest in this model the relationship between the migrant and family is tempered by an implicit understanding of mutual benefit the household strategy may be to encourage some members to migrate as a means of spreading risk and sharing gains the household strategy is similar to an insurance policy where migration is to places where market potential is high the risks incurred might be high the example is given of migration during a drought in botswana migrant remittances were greater in households with more cattle or households with more to lose drought alone was not statistically related to remittances increases in remittances were related to increased levels of education it is suggested that repayment was the motive for parents investment in migrants education migrants gains are identified as the potential for an inheritance the security of channeling investments through a trusted family member and security in having a home to return to it is pointed out that the altruism and family remittances from urban migration were strategies that bridged the simple dynamic of either urban development or rural development impacting on family welfare it is suggested that household models of economy adopt some measure to express the relationship of household wealth to remittances from urban migrants

on non uniqueness in rational expectations models an attempt at perspective abstract many macroeconomic models involving rational expectations give rise to an infinity of solution paths even when the models are linear in all variables some writers have suggested that this non uniqueness constitutes a serious weakness for the rational expectations hypothesis one purpose of the present paper is to argue that the non uniqueness in question is not properly attributable to the rationality hypothesis but instead is a general feature of dynamic models involving expectations it is also argued that there typically exists in a very wide class of linear rational expectations models a single solution that excludes bubble or bootstrap effects one that occur only because they are arbitrarily expected to occur a systematic procedure for obtaining solutions free from such effects is introduced and discussed in addition this procedure is used to interpret and reconsider several prominent examples with solution multiplicities including ones developed by fischer black and john b taylor

latin america s new economic model micro responses and economic restructuring abstract this paper introduces a special issue on the microeconomics of latin america under the new economic model nem the paper reviews the rationale and policies of the nem and analyzes the impact of the reforms at the macroeconomic sectoral and microeconomic levels at the firm level the contributions to this issue demonstrate that a considerable adjustment process is taking place as sectoral structural change indices demonstrate however this has not resulted in widespread shifts of resources between sectors nor has it resulted in significant improvement in overall employment productivity and growth the authors analyze the reasons for this disjuncture and suggest policy alternatives

price level determinacy with an interest rate policy rule and rational expectations abstract this paper reconsiders a result obtained by sargent and wallace namely that price level indeterminacy obtains in their model if the monetary authorities adopt a feedback rule for the interest rate rather than the money stock it is shown that the indeterminacy vanishes if the interest rate rule is chosen so as to have a desired effect on the expected quantity of money demanded this holds even if considerable weight is given in the choice of a rule to the aim of smoothing interest rate fluctuations

bequest behavior and the effect of heirs earnings testing the altruistic model of bequests that parents transfer resources to children because of altruistic concern is a reasonable a priori assumption however economic theories of altruistic transfers have produced many counterintuitive conclusions and consequently much debate when applied to bequests these theories predict that inheritances will compensate for earnings differences between siblings as well as between parents and children this paper tests these implications using a new data set centered on federal estate tax returns little support can be found for an altruistic theory of bequests this finding has implications for macroeconomic policy government transfer programs and inequality copyright 1996 by american economic association

motives for household private transfers in burkina faso abstract resource transfers among households have received considerable interest among economists in recent years two of the main reasons for the surge of interest in household transfers are the information on human nature conveyed by transfer behavior and the implication on income redistribution policy that private transfer might have empirical studies however provide mixed results on transfer behavior this is because previous inquiries were confronted with several estimation issues and have focused on data from developed countries where private transfers are already small this paper contributes to the literature on transfer behavior by using a multifaceted econometric approach to examine the motives of household transfers in burkina a low income country with a well documented tradition of gift exchanges the findings suggest that risk sharing is not central to transfers altruistic transfers are apparent for the middle income class but not at low income level the evidence implies that crowding out may be minimal at low income level suggesting that public transfers targeting poor households may be effective

global value chains meet innovation systems are there learning opportunities for developing countries summary the innovation systems is literature tends not to emphasize the crucial impact of international knowledge and innovation exchange and collaboration through for example inter firm and intra firm networks and global value chains gvc in developing countries this aspect is crucial with integration in gvc playing a growing and very important role in accessing knowledge and enhancing learning and innovation however there is no agreement in the literature about how innovation systems and gvc interact and how this interaction is likely to affect enterprise learning three main conclusions emerge from the theoretical analysis and evidence presented in this paper first learning mechanisms can vary widely within the various forms of governance of gvc they can be the result of the pressure to achieve international standards or be facilitated by direct involvement of the value chain leaders when the suppliers competence is low and the risk of failure to comply is high when the competences of the actors in the value chain are complementary learning is mutual and is based on intense face to face interactions second as we open is to foreign sources of knowledge the relationship between gvcs and is is nonlinear and endogenous and mutually affecting on the basis of our model we would expect a well structured and efficient innovation system would help to reduce transaction complexity and enable transactions based on relational forms of gvc governance third the internal governance of gvc is a dynamic phenomenon that is subject to continuous adjustments and changes and the nature of the is affects this co evolution 2011 elsevier ltd all rights reserved

community based risk management arrangements a review summary risk and its consequences pose a formidable threat to poverty reduction efforts this article reviews a plethora of community based risk management arrangements across the developing world these types of arrangements are garnering greater interest in light of the growing recognition of the relative prominence of household or individual specific idiosyncratic risk as well as the increasing shift towards community based development funding the article discusses potential advantages such as targeting cost and informational and disadvantages such as exclusion and inability to manage correlated risk of these arrangements and their implications for the design of community based social protection programs and policies

rising power clusters and the challenges of local and global standards this paper explores the intersection between three processes associated with globalisation first the rise of emerging economies like china brazil and india the so called rising powers and their potential to define the contours of globalisation global production arrangements and global governance in the twenty first century second the importance of corporate social responsibility csr goals in the shaping of global trade rules and industrial practices third the significance of small firm clusters as critical sites of industrial competitiveness some of the most significant examples of successful innovative and internationally competitive small firm clusters from the developing world are located in the rising powers and cluster promotion is a core element of national industrial policy in some of these countries there is also evidence of engagement by clustered actors with corporate social responsibility goals around labour and environmental impacts while these three processes have been separately studied there has been no attempt to explore their intersections this paper addresses this gap through a comparative analysis of secondary data and a detailed reading of the literature on csr and clusters in brazil china and india it assesses the evidence on small firm clusters in the rising power economies and considers how these rising power clusters engage with csr goals pertaining to labour social and environmental standards it argues for a greater focus on the formal and informal institutional context termed the social contract in explaining divergent experiences and practices observed across these countries this raises important questions for future academic and policy research on clusters csr and the rising powers the paper concludes by outlining a research agenda to explore the local and global consequences of the relationship between rising power clusters and international labour and environmental standards

distortionary taxation debt and the price level this paper considers the nominal and real determinacy of equilibria under an exogenously specifi ed path of interest rates in an economy in which taxation is either lump sum or distortionary under lump sum taxation we confirm the well known finding that equilibria display nominal in determinacy if the primary surplus is exogenous endogenous under distortionary taxation this classification is no longer relevant nominal determinacy is always ensured since distortionary taxes establish a link between the allocation and the sequences of taxes and debt and hence the price level regardless of whether the primary surplus is exogenous or endogenous distortionary taxation however increases the scope for real indeterminacy as a general feature the real in determinacy of equilibria depends on the interaction of fiscal and monetary policies i e on the sequences of taxes debt and interest rates if for example fiscal policy runs a balanced budget the central bank should set the nominal interest rate in a way consistent with long run deflation in order to ensure real determinacy this finding is different from a balanced budget policy under lump sum taxes where no such qualification with respect to the interest rate needs to be made

fiscal requirements for price stability maintaining price stability requires not only commitment to an appropriate monetary policy rule but an appropriate scal policy rule as well ricardian equivalence does not imply that scal policy is irrelevant except in the case of a certain class of policies ricardian policies the role of scal developments in inflation determination under a non ricardian regime is illustrated through an analysis of the bond price support regime of the 1940s a monetary scal regime with attractive properties would combine a taylor rule for monetary policy with nominal decit targeting as a scal policy commitment

industrial clusters knowledge integration and performance abstract scholars examining the phenomenon of industrial clusters have begun to regard them as social communities specializing in efficient knowledge creation and transfer in addition to neo classical arguments focusing on the advantages of localization we seek to contribute to this body of work by developing the argument that both the degree of knowledge integration between an industrial cluster s agents and the scope of their economic activities are key dimensions behind their economic performance we present a model that incorporates a hypothesized relationship between these three dimensions and argue that a formal test of this hypothesis constitutes a promising area of future empirical research in this field

motives for private transfers over the life cycle an analytical framework and evidence for peru abstract this paper tests for the motives for private income transfers we consider two motives altruism and exchange the question of private transfer motives is important because such motivation can influence the effects of public income transfers on the distribution of income using a household survey for peru we find that transfer amounts received increase with recipient pre transfer income which contradicts a key prediction of the strong form of the altruism hypothesis but is consistent with exchange we also find that capital market imperfections are likely to be an important cause of private transfers and that social security benefits crowd out the incidence of private transfers

on the persistence of leadership or leapfrogging in international trade when two countries starting from different quality levels reflecting different conditions on domestic market demands open to trade two possible equilibria arise in the first the quality leader maintains its position in the second leapfrogging occurs however the latter is possible only if the initial quality gap is not too wide further when the risk dominance criterion is used only the former equilibrium is selected these results suggest that initial conditions such as domestic market size or home demand preferences are important factors in determining relative competitiveness of firms in international markets

directed giving evidence from an inter household transfer experiment abstract we investigate the determinants of giving in a lab in the field experiment with large stakes study participants in urban mozambique play dictator games where their counterpart is the closest person to them outside their household when given the option dictators do a large fraction of giving in kind in the form of goods rather than cash in addition they share more in total when they have the option of giving in kind compared to giving that can only be in cash qualitative post experiment responses suggest that this effect is driven by a desire to control how recipients use gifted resources standard economic determinants such as the rate of return to giving and the size of the endowment also affect giving but the effects of even large changes in these determinants are significantly smaller than the effect of the in kind option our results support theories of giving where the utility of givers depends on the composition not just the level of gift recipient expenditures and givers thus seek control over transferred resources

as an economy becomes more developed do people become less altruistic abstractinter household private transfers are one of the main informal insurance mechanisms that prevalently implemented in developing countries unfortunately most of the literatures investigates

monetary policy and asset prices with belief driven fluctuations abstract we present a heterogeneous agents new keynesian model subject to a cost channel of monetary policy transmission constant turnover between long time traders and newcomers in market activities combined with restricted trading opportunities introduces a feedback from the stock market to real activity making stock prices non redundant for the business cycle we show that strict inflation targeting can lead to equilibrium indeterminacy even if the policy rule satisfies the taylor principle a belief driven shock to stock price generates relative volatilities of key financial variables which are very close to what is observed in u s data this result hints to the possibility that the financial instability witnessed since the mid to late 1990s was the result of waves of rational exuberance and pessimism in financial markets our analysis suggests that a mild response to stock prices in the central bank s policy rule can restore equilibrium determinacy and therefore rule out non fundamental volatility

selective spatial closure and local economic development what do we learn from the argentine local currency systems summary this paper discusses local currency systems as an instrument of selective spatial closure to mitigate impacts of externally induced changes and to promote endogenous local economic development drawing on data collected in argentina it was found that local currency systems provided relatively protected economic spaces thus enabling poor households and especially women to launch micro enterprises and diversify income sources they also supported existing enterprises by offering an emergency market outlet and when combined with other measures by building local trading and production networks following recent theory on local economic development the argentine case represents an example of local economic regeneration

quantitative restrictions market power and productivity growth abstract this paper shows that when compared to tariffs quantitative restrictions qrs have a negative effect on innovation and productivity growth first qrs lead to stagnation in the steady state in the absence of domestic competition while tariffs allow for positive steady state growth second the replacement of a qr by a tariff equivalent leads to an increase in the short run incentives to innovation

adaptive behavior and economic theory the relationship between psychological and economic views of behavior once a subject of heavy dispute is now understood in a very similar way by practitioners of both these disciplines and of our sister social sciences in general terms we view or model an individual as a collection of decision rules rules that dictate the action to be taken in given situations and a set of preferences used to evaluate the outcomes arising from particular situation action combinations these decision rules are continuously under review and revision new decision rules are tried and tested against experience and rules that produce desirable outcomes supplant those that do not i use the term adaptive to refer to this trial anderror process through which our modes of behavior are determined if one is interested in modeling particular decisions in any very explicit way it is obviously necessary to think about rather narrow aspects of an individual s entire set of decision rules his or her personality experimental psychology has traditionally focused on the adaptive process by which decision rules are replaced by others in this tradition the influence of the subject s or as an economist says the agent s preferences this essay uses a series of examples to illustrate the use of rationality and adaptation in economic theory it is argued that these hypotheses are complementary and that stability theories based on adaptive behavior may help to narrow the class of empirically interesting equilibria in certain economic models an experiment is proposed to test this idea

full insurance in the presence of aggregate uncertainty this paper tests implications of full consumption insurance the object is to determine how much mileage can be obtained from a model with complete markets with such features as private information or liquidity constraints omitted the implication exploited is that individual consumption responds to aggregate risk but not to idiosyncratic risk the test involves regressing the change in household consumption onto the change in aggregate consumption and other right hand side variables such as the change in household income and change in employment status all variables other than the change in aggregate consumption are predicted to be insignificant in explaining the change in household consumption with observations on consumption and income for 10 695 households from the consumer expenditure survey the results are mixed the results for one specification exponential utility are mostly consistent with full consumption insurance the results for the other specification power utility are not

kinship incentives and evolution we analyze how family ties affect incentives with focus on the strategic interaction between two mutually altruistic siblings the siblings exert effort to produce output under uncertainty and they may transfer output to each other with equally altruistic siblings their equilibrium effort is non monotonic in the common degree of altruism and it depends on the harshness of the environment we define a notion of local evolutionary stability of degrees of sibling altruism and show that this degree is lower than the kinship relatedness factor numerical simulations show how family ties vary with the environment and how this a ects economic outcomes

motives for private income transfers private income transfers are becoming increasingly recognized as a key aspect of the u s economy the majority of private income transfers occur inter vivos i e between living persons but very little is known about this type of transfer behavior this paper tests alternative hypotheses concerning motivation for inter vivos transfers two motives are considered altruism and exchange evidence presented here casts doubt on the altruistic model of transfer behavior observed patterns for inter vivos transfers are more consistent with exchange related motives this finding has important implications for the effects of public transfer programs on the distribution of economic well being

how responsive are private transfers to income evidence from a laissez faire economy abstract in recent years there has been burgeoning interest in how private transfers respond to household income or transfer derivatives much of it is fueled by the specter of crowding out the more responsive are private transfers the more likely they could be supplanted by expansions in public transfers weakening or destroying the latter s distributive impact yet there is also an emerging consensus that actual transfer derivatives are trivial at least for the united states suggesting that crowding out might loom larger in the minds of some economists than in the data but perhaps crowding out is a fait accompli in the united states accordingly we focus on the philippines which has a much smaller public sector we also pursue a novel theoretical angle which generates a sharp non linear relationship between private transfer receipts and income in the form of a spline our empirical work applies recently developed estimation techniques that treat the spline s threshold as an unknown parameter and they uncover transfer derivatives much larger than conventional methods reveal notably private transfers patterns are consistent with altruistic preferences effective risk sharing or both in accord with theoretical predictions however strong transfer derivatives prevail only among low income households our findings suggest that attempts to aid the poor could be thwarted by private responses which leak benefits to richer households in the form of lighter burdens of support for less fortunate kin so the problems that operative private transfers create for public redistribution policy first pointed out by becker and barro over 25 years ago do indeed matter empirically

the information content of the interest rate and optimal monetary policy optimal monetary policy rules are derived in a rational expectations cum contracting framework monetary policy is redundant if wage setters exploit the incomplete current information embodied in today s nominal interest rate however the monetary authorities can save wage setters the costs of indexing to the interest rate a contemporaneous money supply feedback rule is as effective as wage indexation a lagged rule relevant under a regime of money supply targeting is also as effective if investors use the interest rate both rules have the same implications for the real interest rate as poole s combination policy however the two rules have strikingly different implications for the nominal interest rate

shadow wages and peasant family labour supply an econometric application to the peruvian sierra a striking feature of developing economies is the large proportion of the work force that is self employed lack of widespread labor market participation in the agricultural sector can pose a major obstacle to the empirical implementation of economic models of the peasant household whether because wage data are simply not available or because the assumptions required to make use of wage data stretch the bounds of credulity this paper develops a methodology for estimating a structural labor supply model for primarily self employed peasant households which holds under a general agricultural technology and set of labor market conditions the unique feature of the approach is that the opportunity cost of time or shadow wage of household workers is explicitly estimated from an agricultural production function and is subsequently used to identify a set of structural labor supply parameters recent household survey data from rural peru is employed to estimate and perform various diagnostic tests on the model the empirical findings lend support to the hypothesis that peasant households allocate their members time as if to maximize a family utility function and moreover demonstrate the tractability of the shadow wage methodology and its usefulness in estimating more elaborate time allocation models

how widespread are nonlinear crowding out effects the response of private transfers to income in four developing countries this article investigates the relationship between household income and private transfers received in developing countries if private transfers are unresponsive to household income there is less likelihood of expansions in public social security crowding out private transfers most literature finds that private transfers are unresponsive but this may be because responses have been obscured by the methods that ignore nonlinearities threshold regression techniques find such nonlinearity in the philippines and scope for serious crowding out with 30 80 of private transfers potentially displaced for low income households cox et al 2004 to see if these nonlinear effects occur more widely semiparametric and threshold regression methods are used to model private transfers in four developing countries china indonesia papua new guinea and vietnam the results reported in this article suggest that nonlinear crowding out effects are not important features of transfer behaviour in these countries the

the empirical content of nash bargained household behavior in households whose allocation decisions can be represented as nash bargained household decisions extrahousehold environmental parameters eeps serve as pure shifters of the threat points the comparative statics of changes in demands due to changes in these eeps are given these are incorporated into a comprehensive statement of the empirical content of nash bargained household behavior including a nash generalization of barten s 1966 fundamental matrix equation of the theory of consumer demand estimation and data requirements are discussed along with nested testing of the following structure the neoclassical model is nested in the nash bargained model which in turn is nested in an unrestricted model of household demands emphasized throughout is the enriched menu of explanatory variables for demand analysis provided by the nash model as well as the model s ability to jointly analyze i household formation and ii intrahousehold allocation decisions

parental altruism and inter vivos transfers theory and evidence this paper uses psid data on the extended family to test whether inter vivos transfers from parents to children are motivated by altruism specifically the paper tests whether an increase by one dollar in the income of parents actively making transfers to a child coupled with a one dollar reduction in that child s income results in the parents increasing their transfer to the child by one dollar this restriction on parental and child transfer income derivatives is derived for the standard altruism model augmented to include uncertainty and liquidity constraints these additional elements pin down the timing of inter vivos transfers the method used to estimate income transfer derivatives takes into account unobserved heterogeneity across families in the degree of altruism the findings strongly reject the altruism hypothesis redistributing one dollar from a recipient child to donor parents leads to less than a 13 cent increase in the parents transfer to the child far less than the one dollar increas

public goods hidden income and tax evasion some nonstandard results from the warm glow model abstract a large literature explores crowd out in situations where public goods are jointly provided work in this area typically depicts a tax system where individuals take taxes as given but in some settings such as those in developing economies efforts to evade or avoid taxes may be widespread using the canonical warm glow model this paper considers joint public good provision in a setting where individuals can evade taxes by hiding their income the model s implications change significantly in this setting with hidden income stronger warm glow will lead to greater crowd out not less using research on crowd out and inter family transfers i present suggestive evidence that the model s results may help to reconcile divergent estimates of crowd out in the literature

the effect of social entitlement programs on private transfers new evidence of crowding out working paper 2010 15 september 2010 abstract this paper exploits a natural policy experiment to directly identify the crowding out effects of public transfers on the incidence and level of private transfers the introduction of a large social security program in taiwan is used to estimate the effect of an exogenous increase in government transfer payments to the elderly on the private transfer behavior of their adult children using an instrumental variables strategy that accounts for the endogeneity of receiving public transfers the empirical results show strong evidence of crowding out on the extensive margin the probability of providing a positive transfer and weaker evidence of crowding out on the intensive margin the amount of the transfer conditional on it being positive jel classification h53 h55 h31 key words private transfers crowding out 1 introduction determining the impact of public transfer programs on private transfer behavior is a key issue from both a research and policy perspective if public transfers largely crowd out private transfers then the welfare impact of social redistributive programs will be smaller than perceived economic theory is ambiguous in its predictions about crowding out the altruism model developed in the seminal papers of barro 1974 and becker 1974 predicts essentially complete crowding out the model focuses on transfers from parents to children but can be applied equally well to transfers from adult children to their elderly parents in the model the child s utility is included in an altruistic parent s utility function which gives the parent an incentive to support the child the core of the altruism model is the prediction of redistribution neutrality which posits that the parents will adjust their transfer behavior in response to changes in the child s income for example an increase in the child s income due to welfare subsidies from the government will lower the amount of parental transfers if ricardian equivalence holds and the government subsidy is financed by a tax on the parents income then the parents will reduce their transfer exactly by the tax amount implying complete crowding out in contrast to the altruism model the exchange model of bernheim et al 1985 and cox 1987 argues that a child s services to the parents such as contacts and visits are at least in part financially motivated as the child expects monetary compensation in this model the amount of transfers could be a positive or negative function of the child s income as the child s income increases the opportunity cost of services increases and thus the amount of expected compensation for the services increases in such a setting the relationship between the child s income and the amount of parental transfers is not clear it could be positive if the parents demand for services is inelastic as they would need to increase transfer payments to the child in order to receive the same level of services if this were the case government subsidies would increase the amount of private transfers received and thus there would be no crowding effect on the other hand if the demand for services is highly elastic then parents demand would fall along with monetary compensation which would lead to crowding out 1 as a result of the ambiguous effect of crowding out predicted by theory a relatively large empirical literature has focused on the estimation of both the sign and magnitude of the crowding out effect of public transfer programs however due to data limitations most empirical studies have not been able to directly measure the crowding out effect of public redistribution programs most studies in this literature have attempted to indirectly measure the impact of such programs on beneficiaries by studying the response of private transfers to changes in the recipient s level of income the results from these papers however are not consistent

finite lifetimes long term debt and the fiscal limit abstract the u s faces exponentially rising entitlement obligations i introduce a fiscal limit a point where higher taxes are no longer a feasible financing mechanism into a perpetual youth model to examine how intergenerational redistributions of wealth the average duration of government debt and entitlement reform impact the consequences of explosive government transfers three key findings emerge 1 growing government transfers cause more severe and more persistent stagflation than in representative agent models that do not capture intergenerational transfers of wealth 2 a longer average duration of government debt pushes the financing of government liabilities into the future and reduces the short run impacts of explosive transfers 3 the time it takes the economy to rebound from a period of growing transfers increases exponentially with the number of years it takes to pass entitlement reform

does government spending affect income poverty a meta regression analysis summary this paper presents the results of a meta regression analysis of the relationship between government spending and income poverty with a focus on low and middle income countries through a comprehensive search and screening process we identify a total of 19 cross country econometric studies containing 169 estimates of this relationship we find that the size and direction of the estimated relationship are affected by a range of factors most notably the composition of the sample used for estimation the control variables included in the regression model and the type of government spending overall we find no clear evidence that higher government spending has played a significant role in reducing income poverty in low and middle income countries this is consistent with the view that fiscal policy plays a much more limited redistributive role in developing countries in comparison with oecd countries in addition we find that the relationship between government spending and poverty is on average less negative for countries in sub saharan africa and more negative for countries in eastern europe and central asia compared to other regions we also find that the relationship is less negative for government consumption spending in comparison with other sectors finally we find some evidence indicating the possibility of publication bias

interest rate rules and price determinacy the role of transactions services of bonds abstract interest rate rules have been associated with price indeterminacy when they do not respond aggressively enough to inflation price indeterminacy is typically associated with indeterminacy of real bond balances suggesting that the missing element is a meaningful role for government bonds we assume that government bonds provide arbitrarily small transactions services and show that this can dramatically change the local and global determinacy conditions in particular the specification of fiscal policy affects the aggressiveness with which monetary policy must respond to inflation to deliver local determinacy a range of passive monetary policies even an interest rate peg may yield determinacy

the fiscal myth of the price level i examine the fiscal theory of the price level according to which non ricardian policy and predetermined nominal government debt fiscally determine prices i argue that the non ricardian policy

political connections and social networks in targeted transfer programs evidence from rural ethiopia abstractdespite increasingly large scale social protection programs in africa we have limited evidence on the local political economy of their allocation we investigate community based processes for food aid allocation and the role of political and social networks using the case of ethiopia in the aftermath of a serious drought in 2002 local political authorities are in charge of food transfers in terms of free food aid or food for work programs we find that although targeting is clearly imperfect free food aid is responsive to need as well as targeted to households with less access to support from relatives or friends we also find a strong correlation with political connections households with close associates in official positions have more than a 12 higher probability of obtaining free food than households that are not well connected this effect is large someone without political connections has the same probability of getting food aid as someone more than twice as rich but with these conne

estimating threshold effects of u s generic fluid milk advertising this paper addresses the issues of threshold effects pertaining to u s generic fluid milk advertising a threshold delineates the level of advertising intensity that has to be met to generate a specific level of sales effect given that promotional organizations face budget constraints it is of particular interest to ascertain if there exists a minimum threshold that an advertising campaign has to cross to yield a non trivial sales effect despite strong beliefs among market practitioners the existence of advertising threshold effects has rarely been studied by researchers interested in agricultural commodity promotions adopting a spline threshold estimation procedure this paper represents the first attempt to identify thresholds in the sales effect of generic advertising and the impacts the thresholds may have on consumers reactions to changes in important economic variables such as own price and income using quarterly u s generic fluid milk advertising data from 1975 to 2004 a regime dependent fluid milk demand equation is estimated the results support the existence of advertising thresholds and show that generic advertising has the effect of rendering fluid milk demand less elastic with respect to own price and more elastic with respect to income the results of policy simulation further highlight the importance of accounting for the threshold effects of advertising in evaluating promotion program effectiveness

altruism and environmental risks to health of parents and their children abstract this paper tests an equilibrium condition from a model that incorporates 1 altruism of parents toward their young children and 2 household production of latent health risks the model demonstrates that an altruistic parent s marginal rate of substitution between an environmental health risk to herself and to her child is equal to the ratio of marginal risk reduction costs econometric estimates support this prediction based on data from a stated preference survey involving 488 parents of children aged 3 12 years this outcome implies that parents reallocate family resources to at least partly offset the effectiveness of public programs that aim to reduce their children s environmental risks

social norms and gift behavior theory and evidence from romania in many developing and transitional countries with limited public income redistribution inter household transfers in general and gifts in particular are sizable and very important we use unique romanian survey data that enables us to isolate pure gifts from other private transfers we explicitly focus on the importance of community wide social norms and find that they indeed play a major role for both the occurrence and the values of gifts more exactly our results suggest that the overall predominant gift motive among romanian households is a norm of reciprocity moreover this norm seems to be dominating for gifts to middle and high income households even though poor households receive to the same extent norms of both impure altruism and reciprocity tend to be important hence although the poor may not reciprocate gifts to the same extent as the rich they still receive since there is a social norm to give especially to the poor

the backing of government bonds and monetarism abstract this paper examines the implications of the fiscal backing of government bonds for the effects of conventional macroeconomic policies and in particular for certain monetarist propositions it shows that the validity of some basic monetarist hypotheses requires a considerable degree of accommodation by the fiscal authority relative to the central bank otherwise government bonds may matter in a manner as described in the traditional literature e g mundell 1971 patinkin 1965 though some differences arise of perhaps independent interest the framework developed in the analysis is an intertemporal general equilibrium model with all the descriptive features of the conventional flexible price is lm model

recovery of a mexican cluster devaluation bonanza or collective efficiency abstract mexico as many other developing countries in latin america and elsewhere has been moving in the 1980s toward a liberalized trade regime after a long period of import substitution this paper analyzes the impact of trade liberalization on the cooperative behavior of shoe firms located in a cluster in guadalajara the empirical evidence shows that cooperation has increased it also suggests that cooperation positively influences firms performance and together with a favorable market environment contributes to the cluster s recovery the study is based on fieldwork carried out in guadalajara in 1996 qualitative information was collected through in depth interviews and quantified responses came from a questionnaire survey covering a sample of 63 shoe manufacturing enterprises

intergenerational transfers and the accumulation of wealth h t ouseholds acquire wealth from two sources they save out of income they have earned and they receive transfers from other people the first method of wealth accumulation goes under the name of life cycle saving in which people save during their working lives and dissave after retirement the second involves either an inter vivos transfer that is a transfer between living people or a bequest a transfer that occurs at the death of the donor while inter vivos transfers and bequests will arise in dynastic models where preferences include a taste for the well being of one s descendents few empirical life cycle models reflect these concerns indeed a sharp debate has arisen over the ability of the simple life cycle model to explain observed wealth accumulation understanding the relative sizes of these sources of wealth accumulation affects a variety of issues for example the effects of government debt social insurance public transfer programs estate taxes and incentives for charitable giving depend to some extent on the magnitude and nature of private saving and transfers of wealth analyses of the inequality of wealth may depend on whether most of wealth is earned or received as transfers appropriate policies for encouraging private saving may look rather different depending on whether most saving is to be consumed later in life or passed along to the next generation finally evidence on transfer patterns relates to more fundamental

trade liberalization and economic stabilization in mexico lessons of experience abstract this article reviews the mexican trade liberalization of the past decade special attention is paid to the circumstances by which it was triggered to the macroeconomic environment and to the design of the process particularly the speed and extent of the trade reforms it is argued that although far reaching liberalization measures were carried out in a relatively short period of time the exposure of domestic industry to foreign competition was delayed considerably as a result of the exchange rate management during the process

the indeterminacy of prices under interest rate pegging the non ricardian case abstract this paper investigates the issue of price level indeterminacy under a pure interest rate peg in models that depart from standard ricardian assumptions using a monetary version of blanchard s finite horizons model i find wealth effects operating on government bonds are not sufficient to determine a unique price level next i consider price determination under a non ricardian fiscal authority i show that if agents rationally perceive the possibility of fiscal default the price level is again indeterminate i conclude that departures from ricardian equivalence are not sufficient to ensure a unique price level under a monetary policy of pure interest rate pegging

subjectively assessed welfare and international remittances evidence from tonga using data from a customised household survey in tonga we assess the responsiveness of migrants remittances to perceived needs of recipients we extend a mixed motives model incorporating subjectively assessed recipient welfare we find evidence supportive of altruism for households below a subjective threshold implying that remittances provide important social protection for the poor we also find a positive relationship for those above the threshold implying that welfare improvements in migrant sending countries could increase or decrease remittance flows depending on pre transfer welfare level the effects of remittances on poverty alleviation and income distribution are hence more complex and ambiguous than previous studies suggest

backward and forward solutions for economies with rational expectations in models where anticipations of future endogenous variables influence current behavior there exists an infinity of solutions under the assumption of rational expectations this problem has been dealt with in the study of macro economic models by the implicit or explicit use of one of three additional requirements optimality consistency with alleged economic behavior or conformity of the endogenous variables to an imposed stationarity condition these requirements have coincided in existing models leading to the choice of a unique solution a forward solution the purpose of this paper is to review the problem characterize the solutions and examine whether these requirements are acceptable section i presents a simple model and derives the set of solutions the model makes no claim to generality but has the major advantage that the issues are easily understood in this simple case section ii discusses the requirement of consistency with economic behavior section iii discusses the requirement of stationarity and section iv provides some conclusions