occupational choice and the process of development this paper models economic development as a process of institutional transformation by focusing on the interplay between agents occupational decisions and the distribution of wealth because of capital market imperfections poor agents choose working for a wage over self employment and wealthy agents become entrepreneurs who monitor workers only with sufficient inequality however will there be employment contracts otherwise there is either subsistence or self employment thus in static equilibrium the occupational structure depends on distribution since the latter is itself endogenous we demonstrate the robustness of this result by extending the model dynamically and studying examples in which initial wealth distributions have long run effects in one case the economy develops either widespread cottage industry self employment or factory production employment contracts depending on the initial distribution in the other example it develops into prosperity or stagnation

financial crises unconventional monetary policy exit strategies and agents expectations a central bank may purchase assets during a financial crisis and then exit from those purchases agents have rational expectations about financial crises as rare events the probability the central bank purchases assets and the exit strategy selling off assets quickly produces a double dip recession while slowly unwinding generates a smooth recovery expectations about the exit strategy influence the initial effectiveness of purchases increasing the probability of purchases during crises distorts the pre crisis economy and depends upon the exit strategy the welfare benefits of unconventional policy may differ ex ante versus ex post as can the preferred exit strategy

the two freedoms economic growth and development an empirical study log linear methods are applied to categorical data containing economic freedom political freedom the level of income and the rate of economic growth for a panel of about 100 countries from 1975 to 1992 the main results are given economic freedom the rate of economic growth is independent of political freedom and the level of income given the level of income political freedom is independent of economic freedom and the growth rate the analysis suggests the fundamental effects of economic freedom in fostering economic growth and a high level of income as the condition of a high degree of political freedom

dsge model with financial frictions over subsets of business cycle frequencies abstract we estimate a dsge model with financial frictions and banks on subsets of frequency bands corresponding to higher and lower business cycle frequencies our results show that goodness of fit and parameter estimates associated with real and financial frictions vary substantially across business cycle frequency bands with the estimated coefficients related to financial adjustment costs and for the parameter governing the costs associated to capital requirements displaying the largest variations moreover the comparison of the marginal likelihoods with a frictionless framework suggests that the introduction of financial frictions provides a significant improvement at lower business cycle frequencies this is consistent with the presence of macro financial linkages where credit market frictions affect spending decisions over longer time horizons

a framework for the analysis of evolving patron client ties in agrarian economies abstract this paper looks systematically at the various factors that can account for the disappearance or the transformation of the institution of patronage that used to structure labor and other relationships in many agrarian societies of the past it is an attempt to offer a unifying framework capable of guiding one s attention to the relevant variables and to the way they interact in this process the rather simplistic view according to which there is a unique linear path through which patronage evolves is called into question and a number of different scenarios are instead presented these alternatives are illustrated with reference to asia

environment technology and the social articulation of risk in west african agriculture two preoccupations are not mutually exclusive superficially they share the common concern that liberalization is insufficient to resolve the subsaharan food crisis at a deeper level the two preoccupations are more intimately interrelated via the correspondence that links initial wealth to risk exposure and to behavior in both production and asset accumulation a number of recent empirical studies of risk in low income countries find that households are able to employ their accumulated assets to smooth consumption in the face of adverse agricultural production shocks 3 missing from these studies is explicit attention to the fact that the effective risk from which households insulate consumption is not that of production shocks directly but of those shocks as socially articulated by institutions and property rights this article explores the creation and distribution of effective risk estimating how environment technology and social factors interact to construct it endogenously 4 put differently this article develops the notion that the risk from which households ex post try to insulate consumption is not an immutable natural or technical feature of the landscape as michael watt s contrast between precolonial and colonial nigeria forcefully demonstrates the effective risk presented by an unchanged set of environmental and technical circumstances can

limited asset market participation and the euro area crisis an empirical dsge model we estimate a medium scale dynamic stochastic general equilibrium model for the euro area with limited asset market participation lamp our results suggest that in the recent european monetary union years lamp is particularly sizable 39 during 1993 2012 and important to understand business cycle features the bayes factor and the forecasting performance show that the lamp model is preferred to its representative household counterpart in the representative agent model the risk premium shock is the main driver of output volatility in order to match consumption correlation with output in the lamp model this role is played by the investment specific shock because non ricardian households introduce a keynesian multiplier effect and raise the correlation between consumption and investments we also detect the contractionary role of monetary policy shocks during the post 2007 years in this period consumption of non ricardian households fell dramatically but this outcome might have been avoided by a more aggressive policy stance jel c11 c13 c32 e21 e32 e37

taking financial frictions to the data we estimate a dynamic stochastic general equilibrium dsge model with various financial frictions and analyze how well the model explains the great recession predictive analysis shows that the model can only slightly better explain the large deviation from trend during the crisis relative to a model without financial frictions specifically the risk premium shock which is a shock to the external finance premium of the entrepreneurs leverage explains the largest part of the investment downfall during the crisis however the balance sheet channel of financial frictions in the model which structurally links balance sheet conditions of financial intermediaries and nonfinancial borrowers to their borrowing rates is estimated to be weak we examine alternative prior specifications for how the financial frictions enter the model and continue to find a limited role for these frictions rolling window estimation provides evidence for substantial time variation in parameters governing financial frictions we conclude that the well known financial frictions studied in this paper are not able to explain the financial crisis in a linearized and estimated model

housing finance and monetary policy we document three facts concerning how the structure of housing finance affects the monetary transmission mechanism first the characteristics of residential mortgage markets differ markedly across industrialized countries second the impact of monetary policy shocks to residential investment and house prices is significantly stronger in those countries with larger flexibility development of mortgage markets third the transmission to consumption is stronger only in those countries where mortgage equity release is common and mortgage contracts are predominantly of the variable rate type we then build a two sector dsge model with financial constraints to rationalize those facts

forecasting the australian economy with dsge and bvar models reflecting the importance of commodities for the australian economy we construct a dynamic stochastic general equilibrium dsge model of the australian economy with a commodity sector we assess whether its forecasts can be improved by using it as a prior for an empirical bayesian vector autoregression bvar we find that the forecasts from the bvar tend to be more accurate than those from the dsge model nevertheless for output growth these forecasts do not outperform benchmark models such as a small open economy bvar estimated using the standard priors for forecasting a bayesian factor augmented vector autoregression produces the most accurate near term inflation forecasts

the strategic bequest motive although recent research suggests that intergenerational transfers play an important role in aggregate capital accumulation our understanding of bequest motives remains incomplete we develop a simple model of strategic bequests in which a testator influences the decisions of his beneficiaries by holding wealth in bequeathable forms and by conditioning the division of bequests on the beneficiaries actions the model generates falsifiable empirical predictions that are inconsistent with other theories of intergenerational transfers we present econometric and other evidence that strongly suggests that bequests are often used as compensation for services rendered by beneficiaries

the anatomy of standard dsge models with financial frictions abstract we compare two standard extensions to the new keynesian framework that feature financial frictions the first model originating from kiyotaki and moore 1997 is based on collateral constraints the second developed by carlstrom and fuerst 1997 and bernanke et al 1999 accentuates the role of external finance premia we tweak the models and calibrate them in a way that allows for both qualitative and quantitative comparisons next we thoroughly analyze the two variants using moment matching impulse response analysis and business cycle accounting overall we find that the business cycle properties of the external finance premium framework are more in line with empirical evidence in particular the collateral constraint model fails to produce hump shaped impulse responses and generates volatilities of the price of capital and rate of return on capital that are inconsistent with the data by a large margin

welfare dynamics in rural kenya and madagascar this paper presents comparative qualitative and quantitative evidence from rural kenya and madagascar in an attempt to untangle the causality behind persistent poverty we find striking differences in welfare dynamics depending on whether one uses total income including stochastic terms and inevitable measurement error or the predictable structural component of income based on a household s asset holdings our results suggest the existence of multiple dynamic asset and structural income equilibria consistent with the poverty traps hypothesis furthermore we find supporting evidence of locally increasing returns to assets and of risk management behaviour consistent with poor households defence of a critical asset threshold through asset smoothing

new evidence on the relationship between democracy and economic growth it is often maintained that democracy is a luxury which comes at a price in terms of subsequent slower increases in national living standards however various recent cross section studies on economic growth have found evidence that lack of civil and political liberties is negatively correlated with economic growth using a new measure of democracy which is based upon the number of years that a country can be regarded as a democracy the robustness of this relationship is examined both direct and indirect effects of lack of democratic liberties are analysed our main conclusion is that the relationship between democracy and economic growth is not rubust

great recession slow recovery and muted fiscal policies in the us this paper reconsiders the role of macroeconomic shocks and policies in determining the great recession and the subsequent recovery in the us the great recession was mainly caused by a large demand shock and by the zlb on the interest rate policy in contrast with previous findings the subsequent jobless recovery is explained by the zlb effect we estimate a fraction of non ricardian households which is close to 50 and obtain comparatively large fiscal multipliers however we cannot detect a significant contribution of fiscal policies in stabilizing the us economy for instance the 2007 2009 large increase in expenditure to gdp ratios was apparently determined by the adverse non policy shocks that caused the recession

market oriented institutions and policies and economic growth a critical survey this paper surveys recent evidence suggesting that market oriented institutions and policies are strongly related to economic growth focusing on studies using the economic freedom ef indicator of the fraser institute this index is critically discussed also various serious shortcomings of empirical studies using this index are identified nevertheless there are strong indications that liberalization i e an increase in the ef index stimulates economic growth this paper also reviews studies on the determinants of ef political liberalization is often found to enhance economic liberalization whereas there is less evidence for causality running in the other direction

bayesian evaluation of dsge models with financial frictions we evaluate two most popular approaches to implementing financial frictions into dsge models the bernanke gertler and gilchrist 1999 setup where frictions affect the price of loans and the kiyotaki and moore 1997 model where they concern the quantity of loans we take both models to the data and check how well they fit it on several margins overall comparing the models favors the bernanke gertler and gilchrist framework however even this model does not make a clear improvement over the new keynesian benchmark in terms of marginal likelihood and similarity of impulse responses to those obtained from a var

symposium on democracy and development academic fashions often follow the public political mood in a period when euphoric public commentators have announced the end of history in the triumph of capitalist democracy one sees an increasing number of scholarly studies attempting to show often on the basis of crosscountry statistical evidence and a bit of wishful thinking a positive effect of democracy on development it is in this context refreshing to see the agnostic results reported by adam przeworski and fernando limongi in their paper on the basis of their review of the theoretical arguments and statistical studies they conclude rather bluntly we do not know whether democracy fosters or hinders economic growth their brief but fairly exhaustive examination of the various statistical studies of the last few decades shows the studies to be hopelessly inconclusive and beset with serious methodological problems at the analytical level they argue that it is not at all clear if democracy with its slow empowerment of the less wealthy secures growth fostering capitalist property rights better than dictatorships democracies may actually be more susceptible to pressures for immediate consumption and other particularistic demands that may hamper long run investment on the other hand authoritarian rulers who have the capacity to resist such pressures may instead be self aggrandi zing plundering the surplus of the economy in fact authoritarian regimes may come in different kinds some deriving their legitimacy from providing order and stability some from rapid growth sah 1991 has argued that authoritarian regimes exhibit a larger variance in economic performance than democracies

a macroeconomic model with a financial sector this paper studies a macroeconomic model in which financial experts borrow from less productive agents we pursue four sets of results i the economy is prone to instability and occasionally enters volatile episodes as volatility spikes agents precautionary motive increases depressing prices even further log linear approximations fail to capture these non linear effects that can cause economies to be significantly depressed for long periods of time ii endogenous risk during volatile episodes increases asset price correlations iii financial experts impose a negative externality on each other and on the labor sector by not maintaining adequate capital cushion and funding structure iv while risk sharing within the financial sector through securitization and derivatives contracts reduces many inefficiencies it can also amlify systemic risks

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

traps and thresholds in pastoralist mobility this article presents a new approach to identifying poverty traps in east african pastoralist communities a flexible semiparametric estimation procedure is used to identify a bifurcation in the propensity to engage in the asset based mobile herding livelihood in comparison to the sedentary alternative as a function of herd size the identified threshold is consistent with previous evidence on poverty traps based on modeling herd stock dynamics the approach contributes to an emerging literature that seeks to identify poverty traps through testing the implications of the posited behavioral mechanism behind the trap as opposed to directly modeling asset dynamics the approach is further employed to provide complementary evidence on the relationship between ability and assets in sustaining mobile pastoralism

optimal monetary policy in a model of the credit channel we study a simple extension of the basic new keynesian set up in which we relax the assumption of frictionless financial markets due to asymmetric information and default risk bank lending rates incorporate a spread over the deposit rate we demonstrate that financial frictions affect aggregate dynamics mainly through their impact on firms financing costs which increase in both the deposit rate and in the spread between lending and deposit rates welfare includes a concern for smoothing these two financial market variables our numerical simulations suggest that an aggressive easing of policy is optimal in response to adverse financial market shocks

financial in stability supervision and liquidity injections a dynamic general equilibrium approach we develop a dynamic stochastic general equilibrium model with an heterogeneous banking sector we introduce endogenous default probabilities for both firms and banks and allow for bank regulation and liquidity injection into the interbank market our aim is to understand the interactions between the banking sector and the rest of the economy as well as the importance of supervisory and monetary authorities to restore financial stability the model is calibrated against real us data and used for simulations we show that basel regulation reduces the steady state but improves the resilience of the economy to shocks and that moving from basel i to basel ii is procyclical we also show that liquidity injections relieve financial instability but have ambiguous effects on output fluctuations

confronting the risk of asset loss what role do livestock transfers in northern kenya play abstract in many low income high risk environments households participate in informal risk sharing institutions involving inter household transfers this study focuses on asset transfers and asset risk the influence of past behavior on access to transfers and wealth differentiated transfer behavior panel data on livestock transfers in northern kenya are analyzed three explanations of livestock transfers are investigated ex post insurance ex ante precautionary savings and redistribution findings indicate that livestock transfers are of limited effectiveness in addressing asset risk and avoiding poverty the findings have implications for both research on risk sharing institutions and for the design of development policies in pastoral areas

chained credit contracts and financial accelerators sufficiently high net worth of financial intermediaries fis is considered a necessary condition for financial and macroeconomic stability in this paper we explore why the net worth of fis is important as compared to that of nonfinancial firms using a dynamic general equilibrium model in which both fis and nonfinancial firms rely on costly external debt we find that an exogenous disruption of the fis net worth has a greater aggregate impact than does the same sized disruption of the nonfinancial firms net worth the key reason is that the net worth of the fis in the united states is small jel e22 e44 g21

supplanting the minnesota prior forecasting macroeconomic time series using real business cycle model priors abstract although general equilibrium models are in wide use in the theoretical macroeconomic literature their empirical relevance is uncertain we develop procedures for using dynamic general equilibrium models to aid in analyzing the observed time series relationships among macroeconomic variables our strategy is based on that developed by doan litterman and sims 1984 who constructed a procedure for improving time series forecasts by shrinking vector autoregression coefficient estimates toward a prior view that vector time series are well described as collections of independent random walks in our case the prior is derived from a fully specified general equilibrium model we demonstrate that like the atheoretical random walk priors real business cycle model priors can aid in forecasting

house prices borrowing constraints and monetary policy in the business cycle i develop a general equilibrium model with sticky prices credit constraints nominal loans and asset prices changes in asset prices modify agents borrowing capacity through collateral value changes in nominal prices affect real repayments through debt deflation monetary policy shocks move asset and nominal prices in the same direction and are amplified and propagated over time the financial accelerator is not constant across shocks nominal debt stabilises supply shocks making the economy less volatile when the central bank controls the interest rate i discuss the role of equity debt indexation and household and firm leverage in the propagation mechanism finally i find that monetary policy should not target asset prices as a means of reducing output and inflation volatility

on dsge models the outcome of any important macroeconomic policy change is the net effect of forces operating on different parts of the economy a central challenge facing policymakers is how to assess the relative strength of those forces economists have a range of tools that can be used to make such assessments dynamic stochastic general equilibrium dsge models are the leading tool for making such assessments in an open and transparent manner we review the state of mainstream dsge models before the financial crisis and the great recession we then describe how dsge models are estimated and evaluated we address the question of why dsge modelers like most other economists and policymakers failed to predict the financial crisis and the great recession and how dsge modelers responded to the financial crisis and its aftermath we discuss how current dsge models are actually used by policymakers we then provide a brief response to some criticisms of dsge models with special emphasis on criticism by joseph stiglitz and offer some concluding remarks

political regimes and economic growth arguments that relate regimes to growth focus on property rights pressures for immediate consumption and the autonomy of dictators while everyone seems to agree that secure property rights foster growth it is controversial whether democracies or dictatorships better secure these rights the main mechanism by which democracy is thought to hinder growth is pressure for immediate consumption which reduces investment only states that are institutionally insulated from such pressures can resist them and democratic states are not the main argument against dictatorships is that authoritarian rulers have no interest in maximizing total output these views are summarized in turn

the role of bank capital in the propagation of shocks abstract the recent financial turmoil has underlined the importance of analyzing the link between banks balance sheets and economic activity we develop a dynamic stochastic general equilibrium model in which bank capital mitigates an agency problem between banks and their creditors as a result the capital position of banks affects their ability to attract loanable funds and therefore influences the business cycle through a bank capital channel of transmission we find that the bank capital channel greatly amplifies and propagates the effects of technology shocks on output investment and inflation moreover bank capital shocks create sizeable declines in output and investment

financial freedom and bank efficiency evidence from the european union this paper investigates the dynamics between the financial freedom counterparts of the economic freedom index drawn from the heritage foundation database and bank efficiency levels we rely on a large sample of commercial banks operating in the 27 european union member states over the 2000s after estimating bank specific efficiency scores using data envelopment analysis dea we develop a truncated regression model combined with bootstrapped confidence intervals to test our main hypotheses results suggest that the higher the degree of an economy s financial freedom the higher the benefits for banks in terms of cost advantages and overall efficiency our results also show that the effects of financial freedom on bank efficiency tend to be more pronounced in countries with freer political systems in which governments formulate and implement sound policies and higher quality governance

investment shocks and business cycles abstract the origins of business cycles are still controversial among macroeconomists this paper contributes to this debate by studying the driving forces of fluctuations in an estimated new neoclassical synthesis model of the u s economy in this model most of the variability of output and hours at business cycle frequencies is due to shocks to the marginal efficiency of investment imperfect competition and to a lesser extent technological frictions are the key to their transmission although labor supply shocks explain a large fraction of the fluctuations in hours at very low frequencies they are irrelevant over the business cycle this finding is important because the microfoundations of these disturbances are widely regarded as unappealing

the institutional framework and economic development the compound growth rates of per capita output and farrell type efficiency measures for 115 market economies over the period 1960 80 were compared with measures of political civil and economic liberty it was found that the institutional framework has significant and large effects on the efficiency and growth rate of economies politically open societies which subscribe to the rule of law to private property and to the market allocation of resources grow at three times the rate and are two and one half times as efficient as societies in which these freedoms are abridged

the private provision of public goods altruism and voluntary giving abstract a unique data set on exact giving by individual households for the support of a rural health care facility is used to examine the determinants of charitable giving including the role of altruism we examine whether a household s decision to give or not give and the amount it gives are influenced in the same or different ways by the household s characteristics and economic circumstances we also examine whether a household s altruistic history affects its current giving decisions

understanding declining mobility and inter household transfers among east african pastoralists we model interhousehold transfers between nomadic livestock herders as the state dependent consequence of individuals strategic interdependen ce resulting from the existence of multiple opposing externalities a public good security ext ernality among individuals sharing a social e g ethnic identity in a potentially hostile en vironment creates incentives to band together self interested interhousehold wealth transfers fro m wealthier herders to poorer ones may emerge endogenously within a limited wealth space as a mea ns to motivate accompanying migration by the recipient the distributional reach and size o f the transfer are limited however by a resource appropriation externality related to the use of com mon property grazing lands when this effect dominates it can induce transfers from households who want to relieve grazing pressures caused by others herds our model augments the extant li terature on transfers and is perhaps more consistent with the limited available empirical evi dence on heterogeneous and changing transfers patterns among east african pastoralists the core principles of our model possibly apply more broadly for example to long distance migrants or e ven among foot soldiers in street gangs

what does a technology shock do a var analysis with model based sign restrictions abstract this paper estimates the effects of technology shocks in var models of the u s identified by imposing restrictions on the sign of impulse responses these restrictions are consistent with the implications of a popular class of dsge models with both real and nominal frictions and with sufficiently wide ranges for their parameters this identification strategy thus substitutes theoretically motivated restrictions for the atheoretical assumptions on the time series properties of the data that are key to long run restrictions stochastic technology improvements persistently increase real wages consumption investment and output in the data hours worked are very likely to increase displaying a hump shaped pattern contrary to most of the related var evidence results are not sensitive to a number of specification assumptions including those on the stationarity properties of variables

determinants of democracy a panel study of over 100 countries from 1960 to 1995 finds that improvements in the standard of living predict increase in democracy as measured by a subjective indicator of electoral rights the propensity for democracy rises with per capita gdp primary schooling and a smaller gap between male and female primary attainment for a given standard of living democaracy tends to fall with urbnization and with a greater reliance on natrual resources democracy has little relation to country size but rises with the middle class share of income the apparently strong relation of democracy to colonial heritage mostly disappears when the economic variables are held constant similarly the allowance for these economic variables weakens the interplay between democracy and religious affiliation however negative effects from muslim and non religious affiliations remain intact

altruism the samaritan s dilemma and government transfer policy this paper shows that altruism provides an efficiency rationale for public provision of insurance to the poor the framework is one in which there are rich altruists and risk averse poor who face some possibility of loss the government represents the rich and makes transfers on their behalf with unconditional transfers the poor may forgo insurance and rely on private charity to bail them out in the event of loss this reliance on private charity has adverse efficiency effects these may be avoided if the government makes in kind transfers of insurance copyright 1995 by american economic association

political freedom economic freedom and income convergence do stages of economic development matter in the literature theory and empirical evidence on the nexus of political freedom economic freedom and economic growth are mixed in this paper we test the hypothesis that the effect of political freedom on promoting economic growth is realized and detectable at later stages of social and economic development using panel data for a sample of 104 countries between 1970 and 2003 we find strong support for our hypothesis while economic freedom has greater effects on income convergence in the oecd countries political freedom clearly promotes the convergence among those oecd countries

the role of financial intermediaries in monetary policy transmission the recent financial crisis has stimulated theoretical and empirical research on the propagation mechanisms underlying business cycles in particular on the role of financial frictions many issues concerning the interactions between banking and monetary policy forced policy makers to redefine economic policies and motivated macroeconomists to focus on the implications of financial intermediation constraints for asset price fluctuations the behavior of non financial firms households governments and in turn for real macroeconomic performance this paper surveys research on the role of financial intermediaries and financial frictions in the transmission of monetary policy and discusses how to design both the new banking regulatory and supervisory structures and monetary policy in order to stabilize the economy it also serves as an introduction to this special issue

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

differential risk exposure and stochastic poverty traps among east african pastoralists in the pastoraland agropastoralsystems of east africa s arid and semi arid lands asal climatic shocks price volatility disease outbreaks and widespread violence beget frequent disruption of already fragile livelihoods last year s drought dramatically demonstrates that intense suffering recurs regularly in the asal in spite of significant humanitarian aid flows this article explores why that might be we draw on preliminary results of an ongoing quarterly survey in six sites in northern kenya seventeen years herd history data collected from boran pastoralists in southern ethiopia desta five years seasonaldata on land use and herd management decisions among gabra pastoralists in northern kenya mcpeak 2000a b and three years transactions level data on livestock markets in northern kenya barrett et al in the interest of brevity we present only a synthesis of findings from these and related studies that suggest how differences in pastoralists ubiquitous risk exposure create and sustain structuralpoverty traps from which many asal pastoralists are having a difficult time escaping

experimental evidence on the drivers of index based livestock insurance demand in southern ethiopia while index based microinsurance has attracted considerable attention uptake rates have been weak in many low income countries we explore the purchase patterns of index based livestock insurance in southern ethiopia focusing on the role of accurate product comprehension and price we find that randomly distributed learning kits improve subjects knowledge of the products however we do not find strong evidence that the improved knowledge per se causes greater insurance uptake we also find that reduced price due to randomly distributed discount coupons has an immediate positive impact on uptake without dampening subsequent period demand due to reference dependence associated with price anchoring effects

growth distribution and politics we start by arguing that to understand growth differences across countries and time one needs to understand differences in public policies that affect the incentives for productive accumulation of capital human capital or technically useful knowledge and to understand policy differences one needs to understand how political institutions aggregate conflicting interests into public policies we then survey some recent work along these lines which argues that more inequality leads to slower growth next we illustrate some of the basic ideas of this work by help of a simple model of taxation we also present some econometric cross country evidence which is largely supportive of the basic ideas we end by suggestions for further work this abstract was borrowed from another version of this item

introducing financial frictions and unemployment into a small open economy model the current nancial crisis has made it abundantly clear that business cycle modeling no longer can abstract from nancial factors it is also becoming increasingly clear that the stylized modeling of labor markets without explicit unemployment that is the current standard approach has its limitations some questions which the dominating extant business cycle models are mute on but that we would like to answer are how important are nancial and labor market frictions for the business cycle dynamics of a

optimal monetary policy in a model with agency costs this paper integrates a fully explicit model of agency costs into an otherwise standard dynamic new keynesian model in a particularly transparent way a principal result is the characterization of agency costs as endogenous markup shocks in an output gap version of the phillips curve the model s utility based welfare criterion is derived explicitly and includes a measure of credit market tightness that we interpret as a risk premium the paper also fully characterizes optimal monetary policy and provides conditions under which zero inflation is the optimal policy finally optimal policy can be expressed as an inflation targeting criterion that depending upon parameter values can be either forward or backward looking

priors from general equilibrium models for vars abstract this paper uses a simple new keynesian dynamic stochastic general equilibrium model as a prior for a vector autoregression shows that the resulting model is competitive with standard benchmarks in terms of forecasting and can be used for policy analysis jel classification c11 c32 c53 key words bayesian analysis dsge models forecasting vector autoregressions 1 introduction dynamic stochastic general equilibrium dsge models are popular nowadays in macroeconomics they are taught in virtually every economics ph d program and represent a predominant share of publications in the field yet when it comes to policy making these models are scarcely used at least from a quantitative point of view the main quantitative workhorse for policy making at the federal reserve system is frb us a macro econometric model built in the cowles foundation tradition a style of macroeconomics that is no longer taught in many ph d programs 1 in their decision process fed policy makers rely heavily on forecasting they want to know the expected path of inflation in the next few quarters and by how much a 50 basis point increase in the federal funds rate would affect that path frb us offers answers to these questions answers that many macroeconomists would regard with suspicion given both the lucas 1976 critique and the fact that in general the restrictions imposed by cowles foundation models are at odds with dynamic general equilibrium macroeconomics sims 1980 general equilibrium models on the other hand have a hard time providing alternative answers the fact that these models are perceived to do badly in terms of forecasting as they are scarcely parameterized is perhaps one of the reasons why they are not at the forefront of policy making while progress is being made in the development of dsge models that deliver acceptable forecasts e g smets and wouters 2003 this paper proposes an approach that combines a stylized general equilibrium model with a vector autoregression var to obtain a specification that both forecasts well and is usable for policy analysis specifically the approach involves using prior information coming from a dsge model in the estimation of a vector autoregression loosely speaking this prior can be thought of as the result of the following exercise i simulate time series data from the dsge model ii fit a var to these data in practice we replace the sample moments of the simulated data by population moments computed from the dsge model solution since the dsge model depends on unknown structural parameters we use a hierarchical prior in our analysis by placing a distribution on the dsge model parameters a tightness parameter controls the weight of the dsge model prior relative to the weight of the actual sample markov chain monte carlo methods are used to generate draws from the joint posterior distribution of the var and dsge model parameters the paper shows that the approach makes even a fairly stylized new keynesian dsge model competitive with standard benchmarks in terms of forecasting real output growth inflation and the nominal interest rate the three variables that are of most interest to policy makers 2 up to this point our procedure borrows from the work of dejong ingram and whiteman 1993 and ingram and whiteman 1994 who are the first to use priors from dsge models for vars ingram and whiteman showed that prior information from the bare bones stochastic growth model of king plosser and rebelo 1988 is helpful in forecasting real economic activity such as output consumption investment and hours worked in addition to documenting the forecasting performance of a trivariate var with a prior derived from a monetary dsge model this paper makes two contributions that significantly extend the earlier work first we show formally how posterior inference for the var parameters can be translated into posterior inference for dsge model parameters

on the fit of new keynesian models this article provides new tools for the evaluation of dynamic stochastic general equilibrium dsge models and applies them to a large scale new keynesian model we approximate the dsge model by a vector autoregression and then systematically relax the implied cross equation restrictions and document how the model fit changes we also compare the dsge model s impulse responses to structural shocks with those obtained after relaxing its restrictions we find that the degree of misspecification in this large scale dsge model is no longer so large as to prevent its use in day to day policy analysis yet is not small enough to be ignored

stochastic wealth dynamics and risk management among a poor population we use herd history data collected among pastoralists in southern ethiopia to study stochastic wealth dynamics among a poor population although covariate rainfall shocks plainly matter household specific factors including own herd size account for most observed variability in wealth dynamics we find no support for the tragedy of the commons hypothesis past studies may have conflated costly self insurance with stocking rate externalities biophysical shocks move households between multiple dynamic wealth equilibria the lowest suggesting a poverty trap according to nonconvex path dynamics these findings have broad implications for development and relief strategies among a poor population vulnerable to climatic shocks a vast economic literature on risk management rests explicitly or implicitly on the classic friedmanite permanent income hypothesis studies of portfolio management consumption smoothing social insurance and the like all depend on the canonical assumption that stochastic income realisations are drawn from a stationary income distribution leading to consumption smoothing off a stable asset base the possibility of asset accumulation connects this literature to the immense literature on the theory and empirics of economic growth

monetary policy and large crises in a financial accelerator agent based model abstract an accommodating monetary policy followed by a sudden increase of the short term interest rate often leads to a bubble burst and to an economic slowdown through the implementation of an agent based model with a financial accelerator mechanism we are able to study the relationship between monetary policy and large scale crisis events a two step computational approach is proposed which performs i a pattern search of double dip episodes and ii counter factual simulations implementing unconventional monetary policy the main results can be summarized as follow a sudden and sharp increases of the policy rate can generate recessions b after a crisis returning too soon and too quickly to a normal monetary policy regime can generate a double dip recession while c keeping the short term interest rate anchored to the zero lower bound in the short run can successfully avoid a further slowdown

capital regulation and monetary policy with fragile banks optimizing banks subject to runs are introduced in a macro model to study the transmission of monetary policy and its interplay with bank capital regulation when banks are risky a monetary expansion and a positive productivity shock increase bank leverage and risk risk based capital requirements amplify the cycle and are welfare detrimental within a class of simple policy rules the best combination includes mildly anticyclical capital ratios as in basel iii and a response of monetary policy to asset prices or bank leverage

how important are financial frictions in the united states and the euro area this paper aims to evaluate whether frictions in credit markets are important for business cycles in the united states and the euro area i modify the dsge financial accelerator model developed by bernanke gertler and gilchrist 1999 by adding such frictions as price indexation to past inflation sticky wages consumption habits and variable capital utilization when estimating the model using bayesian methods i find that financial frictions are relevant in both areas according to the posterior odds ratio the data clearly favor the model with financial frictions both in the united states and the euro area moreover financial frictions are larger in the euro area

imperfect commitment altruism and the family evidence from transfer behavior in low income rural areas in this paper we examine empirically whether risk pooling is more advantageous among altruistic compared to selfish agents in a framework where individuals cannot make binding commitments in particular we incorporate altuism into a model of risk sharing under imperfect commitment and use simulation methods to establish tests of the roles of both altruism and commitment problems in determining the extent of insurance and the intertemporal movements in interhousehold transfers the tests are carried out using three panel data sets from two countries of rural south asia that provide detailed information on transfers and enable the measurement of income shocks the estimates provide strong support for the notion that imperfect commitment substantially constrains informal transfer arrangements whether kin based or not but also provide evidence that altruism plays an important role in ameliorating commitment constraints and thus in increasing the gains from income pooling