state dependent exchange rate pass through behavior abstract we estimate a bayesian threshold vector autoregression tvar to study the relationship between exchange rate pass through and economic activity in canada and mexico both the model comparison and the analysis of impulse response functions provide strong evidence of a nonlinear relationship and suggest that the exchange rate pass through is dependent on the state of the economy in particular the pass through coefficient is higher when the growth rate of output is large and this difference is statistically significant across regimes for both countries furthermore the results show that the degree of pass through is complete in the case of import prices and that it falls along the distribution chain of goods

the policy preferences of the us federal reserve in this paper we model and explain us macroeconomic outcomes subject to the discipline that monetary policy is set optimally exploiting the restrictions that come from optimal policymaking we estimate the parameters in the federal reserve s policy objective function together with the parameters in its optimization constraints for the period following volcker s appointment as chairman we estimate the implicit inflation target to be around 1 4 and show that policymakers assigned a significant weight to interest rate smoothing we show that the estimated optimal policy provides a good description of us data for the 1980s and 1990s

the microfinance promise in the past decade microfinance programs have demonstrated that it is possible to lend to low income households while maintaining high repayment rates even without requiring collateral the programs promise a revolution in approaches to alleviating poverty and spreading financial services and millions of poor households are served globally a growing body of economic theory demonstrates how new contractual forms offer a key to microfinance success particularly the use of group lending contracts with joint liability for the most part however high repayment rates have not translated into profits and studies of impacts on poverty yield a mixed picture in describing emerging tensions the paper highlights the diversity of innovative mechanisms beyond group lending contracts the measurement of financial sustainability the estimation of economic and social impacts the costs and benefits of subsidization and the potential to reduce poverty through savings programs rather than just credit the promise of microfinance has pushed far ahead of the evidence and an agenda is put forward for addressing critical empirical gaps and sharpening the terms of policy discussion

asymmetric price adjustment and economic fluctuations this paper considers a possible explanation for asymmetric adjustment of nominal prices the authors present a menu cost model in which positive trend inflation causes firms relative prices to decline automatically between price adjustments in this environment shocks that raise firms desired prices trigger larger price responses than shocks that lower desired prices the authors use this model of asymmetric adjustment to address three issues in macroeconomics the effects of aggregate demand the effects of sectoral shocks and the optimal rate of inflation copyright 1994 by royal economic society

generalized method of moments and inverse control abstract this paper presents a generalized method of moments algorithm for estimating the structural parameters of a macroeconomic model subject to the restriction that the coefficients of the monetary policy rule minimize the central bank s expected loss function the algorithm combines least squares normal equations with moment restrictions derived from the first order necessary conditions of the auxiliary optimization we assess the performance of the algorithm with monte carlo simulations using three increasingly complex models we find that imposing the optimizing restrictions when they are true improves estimation accuracy and that imposing those restrictions when they are false biases estimates of some of the structural parameters but not of the policy rule coefficients

the informal sector and the political economy of development this paper takes an initial step in integrating insights from two sets of literature which have focused on central aspects of development with unfortunate independence it highlights politically valuable resources which are identified in the political economy literature and shows that the informal sector literature provides ample evidence that these resources in general are i scarcely available to informal entities ii poorly valued in their possession and iii more often collectively unexploited by them overall there seems to be an important though neglected bias in how the political system in less developed countries formulates crafts and implements policy

imperfect information and the business cycle imperfect information has played a prominent role in modern business cycle theory this paper assesses its importance by estimating the new keynesian nk model under alternative informational assumptions one version focuses on confusion between temporary and persistent disturbances another on unobserved variation in the inflation target of the central bank a third on persistent mis perceptions of the state of the economy measurement error and a fourth assumes perfect information the standard nk dsge version imperfect information is found to contain considerable explanatory power for business fluctuations signal extraction seems to provide a conceptually satisfactory empirically plausible and quantitatively important business cycle mechanism

assessing nominal income rules for monetary policy with model and data uncertainty nominal income rules for monetary policy have long been debated but two issues are of particular recent interest first there are questions about the performance of such rules over a range of plausible empirical models especially models with and without explicit rational inflation expectations second there are questions about the performance of these rules in real time using the type of data that is actually available contemporaneously to policy makers rather than final revised data this paper determines optimal monetary policy rules in the presence of such model uncertainty and real time data uncertainty and finds only a limited role for nominal output growth

property rights and consumption volatility evidence from a land reform in vietnam summary during vietnam s transition from a socialist to a market economy household s property rights over agricultural land were considerably strengthened through a land certification program this resulted in active formal credit and land markets either of which potentially affects consumption levels and volatility this article evaluates the program impact with respect to consumption outcomes in particular it identifies the channel of impact through which improved property rights affect consumption volatility we find that land certification increases consumption levels for rural households but also consumption volatility for a subgroup of households identified by an instrument we show that the certification program affects consumption outcomes of this subgroup through presumably more risky credit based agricultural investment at the intensive margin

equivalence results for optimal pass through optimal indexing to exchange rates and optimal choice of currency for export pricing firms sometimes write price lists or catalogs for their exports so they set prices for a period of time and do not adjust prices during that interval in response to changes in their environment the firm sets the price either in its own currency or the importer s currency this paper draws a simple link between the choice of currency and the pricing decision of a firm that changes prices in response to all shocks specifically if the latter firm s price has a lower variance in terms of its own currency than the importer s currency then the firm with a price list will set the price in its own currency and otherwise it will set price in the foreign currency this relationship is established by consideration of the firm with a price list as a special case of a firm that indexes its export price to the exchange rate jel f4 f1

household savings and residential mobility in informal settlements in bhopal india strategies to address the problem of informal settlements have focused on slum upgrading sites and services programmes and tenure security there has been less attention on what enables slum dwell

endogenous monetary policy with unobserved potential output this paper characterizes monetary policy when policymakers are uncertain about the extent to which fluctuations in output and inflation are due to changes in potential output or to cyclical demand and cost shocks our results suggest an explanation for the inflation of the 1970s and the price stability of the 1990s it is shown that 1 policy is likely to be excessively loose for some time when there is a large decrease in potential output in comparison to a full information benchmark 2 retrospective policy errors and errors in forecasting potential output and the output gap are generally serially correlated 3 the increase in the fed s conservativeness between the 1970s and the 1990s implies that the information problem had greater consequences in the former period

menu costs and the long run output inflation trade off abstract in standard new keynesian models there exists an unlimited long run trade off between output and inflation but when we allow for an endogenous frequency of price adjustment this is replaced by an inverted u shaped relationship

nominal price rigidity money supply endogeneity and business cycles abstract this paper investigates the ability of nominal price rigidity to explain the co movement of inflation with the cyclical component of output observed in the post war u s data a dynamic general equilibrium model is constructed with the introduction of monopolistic competition and nominal price rigidity in a standard real business cycle model allowing for an endogenous money supply rule it is then demonstrated that sticky price models can explain the observed associations between movements in inflation and output much better than flexible price models this result depends little on whether money supply is assumed to be endogenous or not

a method for taking models to the data abstract this paper develops a method for combining the power of a dynamic stochastic general equilibrium model with the flexibility of a vector autoregressive time series model to obtain a hybrid that can be taken directly to the data it estimates this hybrid model via maximum likelihood and uses the results to address a number of issues concerning the ability of a prototypical real business cycle model to explain movements in aggregate output and employment in the postwar us economy the stability of the real business cycle model s structural parameters and the performance of the hybrid model s out of sample forecasts

news noise and fluctuations an empirical exploration a common view of the business cycle gives a central role to anticipations consumers and firms continuously receive information about the future which is sometimes news and sometimes just noise based on this information consumers and firms choose spending and because of nominal rigidities spending affects output in the short run if ex post the information turns out to be news the economy adjusts gradually to a new level of activity if it turns out to be just noise the economy returns to its initial state therefore the dynamics of news and noise generate both short run and long run changes in aggregate activity this view appears to capture many of the aspects often ascribed to fluctuations the role of animal spirits in affecting demand spirits coming here from a rational reaction to information about the future the role of demand in affecting output in the short run together with the notion that in the long run output follows a natural path determined by fundamentals in this paper we examine whether this view is consistent with the data we reach three main conclusions the first two methodological the third substantive structural vars typically cannot recover news and noise shocks the reason is straightforward if agents face a signal extraction problem and are unable to separate news from noise then the econometrician faced with either the same data as the agents or a subset of these data cannot do it either while structural estimation methods cannot recover the actual time series for news and noise shocks either they can recover underlying structural parameters and thus the relative role and dynamic effects of news and noise shocks estimation of both a simple model and then of a more elaborate dsge model suggest that agents indeed solve such a signal extraction problem and that noise shocks play an important role in determining short run dynamics recent efforts to estimate business cycle models in which expectations about the future play an important role include christiano et al 2010 and schmitt grohe and uribe 2012 those papers follow the approach of jaimovich and rebelo 2009 and model news as perfectly anticipated productivity changes that will occur at

how important is precommitment for monetary policy we quantify the welfare differential between precommitment and discretionary monetary policy in three estimated models of the u s economy by calculating the permanent deviation of inflation from target that in welfare terms is equivalent to moving from discretion to precommitment using a range of reasonable central bank preference parameters this inflation equivalent ranges from 0 05 to 3 6 percentage points with a mid point of either 0 15 or 1 1 5 percentage points depending on the model in addition to the degree of forward looking behavior we show that the existence of transmission lags and or information lags is crucial for determining the welfare gain from precommitment

low inflation pass through and the pricing power of firms abstract recently there has been a significant decline in the degree to which firms pass through changes in costs to prices a decline that is frequently characterized as a reduction in the pricing power of firms the decline appears to be associated with the decline in inflation in many countries the decline has important implications for monetary policy because it affects both forecasts of inflation and the effects of changes in monetary policy on inflation some have argued that the decline in pricing power helped to keep inflation low in the face of apparently strong demand pressures in the united states in the late 1990s this paper puts forth the view that the decline in pass through or pricing power is due to the low inflation environment that has recently been achieved in many countries first a microeconomic model of price setting is used to show that lower pass through is caused by lower perceived persistence of cost changes evidence is then presented showing that inflation is positively correlated with persistence of inflation suggesting that the low inflation itself has caused the low pass through an economy wide model consistent with the micromodel is then presented to illustrate how such changes in pricing power affect output and inflation dynamics in favorable ways but can disappear quickly if monetary policy and expectations change

estimating new keynesian phillips curves a full information maximum likelihood approach abstract the new keynesian phillips curve has recently become an important ingredient in monetary policy models however using limited information methods the empirical support for the new keynesian phillips curve appear to be mixed this paper argues by means of monte carlo simulations with a simple new keynesian sticky price model that single equations methods e g gmm are likely to produce imprecise and biased estimates then it is argued that estimating the model with full information maximum likelihood fiml is a useful way of obtaining better estimates finally a version of the model used in the monte carlo simulations is estimated on u s data with fiml and although the pure forward looking new keynesian phillips curve is rejected a version with both forward and backward looking components provides a reasonable approximation of u s inflation dynamics

labor and investment frictions in a real business cycle model abstract this paper develops a prototype real business cycle model in which labor and investment frictions may compete directly with technology shocks in accounting for fluctuations in the postwar us economy using ireland s 2004a a method for taking models to the data journal of economic dynamics and control 28 1205 1226 methodology we establish that both types of friction are quantitatively important technology shocks still explain a substantial fraction of the fluctuations in aggregate output as the baseline real business cycle model predicts formal hypothesis tests suggest that changes in the recurrence of shocks frictions and structural parameters all play a role in accounting for the shift in the time series properties of the data between the periods before and after 1980

exchange rate pass through to domestic prices does the inflationary environment matter abstract the paper tests a hypothesis suggested by j taylor 2000 low inflation pass through and the pricing power of firms european economic review 44 7 1389 1408 that a low inflationary environment leads to a low exchange rate pass through to domestic prices to test this hypothesis the paper derives a pass through relation based on new open economy macroeconomic models a large database that includes 1979 2000 data for 71 countries is used to estimate this relation there is strong evidence of a positive and significant association between the pass through and the average inflation rate across countries and periods the inflation rate moreover dominates other macroeconomic variables in explaining cross regime differences in the pass through

exchange rate pass through and inflation a nonlinear time series analysis abstract this paper investigates the relationship between the exchange rate pass through erpt and inflation by estimating a nonlinear time series model based on a simple theoretical model of erpt determination we show that the dynamics of erpt can be well approximated by a class of smooth transition autoregressive star models using the past inflation rate as a transition variable we employ several u shaped transition functions in the estimation of the time varying erpt to us domestic prices the estimation result suggests that declines in the erpt during the 1980s and 1990s are associated with lowered inflation

introduction funding gaps theoretical and empirical foundations of government policies to plug alleged business funding gaps are highly controversial but rarely subject to wide ranging in depth debate this symposium from major scholars in the field provides a counterbalance topics addressed cover the theory of lending under asymmetric information its implications for overlending relationship lending as a market solution to information asymmetries government emulation of private sector decision making to eliminate underprovision of high tech equity and theoretically based empirical work testing for funding deficiencies in the high tech sector despite the very different and potentially contradictory contributions the result is surprisingly a set of mutually agreed policy conclusions

indicator variables for optimal policy the optimal weights on indicators in models with partial information about the state of the economy and forward looking variables are derived and interpreted both for equilibria under discretion and under commitment an example of optimal monetary policy with a partially observable potential output and a forward looking indicator is examined the optimal response to the optimal estimate of potential output displays certainty equivalence whereas the optimal response to the imperfect observation of output depends on the noise in this observation

should a monetary policymaker look at money abstract this paper examines whether monetary indicators are useful in implementing optimal discretionary monetary policy when the policymaker has incomplete information about the environment we find that money does not contain useful information for the policymaker if we calibrate the model to the u s economy if money demand were to be appreciably less variable observations on money could be useful in response to productivity shocks but would be harmful in response to money demand shocks we provide an incomplete information example where equilibrium welfare declines when the money demand volatility decreases

shadow economies size causes and consequences using various methods the size of the shadow economy in 76 developing transition and oecd countries is estimated average size varies from 12 percent of gdp for oecd countries to 23 percent for transition countries and 39 percent for developing countries increasing taxation and social security contributions combined with rising state regulations are driving forces for the increase of the shadow economy especially in oecd countries according to some findings corruption has a positive impact on the size of the shadow economy and a growing shadow economy has a negative effect on official gdp growth

review of de soto s the mystery of capital in the mystery of capital hernando de soto promotes his explanation of why formal capital markets function poorly in developing countries de soto argues that much of the population of developing countries lacks access to credit not because they lack assets but because ownership of their property is secured informally which prevents the use of property as collateral the inability to convert assets into capital keeps the developing world from benefiting from capitalism

money and inflation in the euro area a case for monetary indicators abstract this paper examines inflation indicators for the euro area by studying the relationship between inflation output money and interest rates using data spanning 1980 2001 the central finding is that both the output gap and the real money gap the difference between the real money stock and the long run equilibrium real money stock contain considerable information regarding future inflation in contrast the eurosystem s money growth indicator the difference between nominal money growth and a reference value the prominent first pillar in its monetary strategy contains little information about future inflation and no information beyond that contained in the output and real money gaps the predictive performance of the output gap has improved compared to that in a previous version of this paper most likely because of better estimation methods

the macroeconomic effects of distortionary taxation abstract prescott 1986 estimates that technology shocks account for 75 of the fluctuations in the postwar u s economy this paper reestimates the contribution of technological change for a standard business cycle model that includes a public sector and fiscal disturbances i find that a significant fraction of the variance of aggregate consumption investment output capital stock and hours of work can be explained by disturbances in labor and capital tax rates and government consumption i also use the model to quantify the welfare costs of capital and labor taxation for both the time series and welfare calculations maximum likelihood estimates of taste technology and policy parameters are used

a new cramer von misses cointegration test with application to environmental kuznets curve abstractthis article introduces a new cramer von misses cvm cointegration test robust to nonlinearities we characterize nonlinear cointegration in terms of a nonlinear moving average filter high pass filter of a matrix based on permutation matrices on the discrepancy of empirical distributions a cramer von misses cvm test statistic is proposed for testing the null hypothesis of two independent random walks against a broad range of cointegrating alternatives with monotonic nonlinearities and level shifts in the cointegration relationship we derive the asymptotic distribution of this induced order cramer von misses cvm cointegration test this new non parametric test statistic has two important properties the invariance to monotonic transformations of the series and the robustness for the presence of several parameter shifts or structural changes we analyse the small sample properties of this test by monte carlo simulations and evaluate the power of the test finally this cvm test is applied t

estimating potential output as a latent variable this article proposes a new method for estimating potential output in which potential real gross domestic product gdp is modeled as an unobserved stochastic trend and deviations of gdp from potential affect inflation through an aggregate supply relationship the output and inflation equations together form a bivariate unobserved components model which is estimated via maximum likelihood through the use of the kalman filter algorithm the procedure yields a measure of potential output and its standard error and an estimate of the quantitative response of inflation to real growth and the output gap

changes in the federal reserve s inflation target causes and consequences this paper estimates a new keynesian model to draw inferences about the behavior of the federal reserve s unobserved inflation target the results indicate that the target rose from 1 1 4 percent in 1959 to over 8 percent in the mid to late 1970s before falling back below 2 1 2 percent in 2004 the results also provide some support for the hypothesis that over the entire postwar period federal reserve policy has systematically translated short run price pressures set off by supply side shocks into more persistent movements in inflation itself although considerable uncertainty remains about the true source of shifts in the inflation target jel e31 e32 e52

inferring monetary policy objectives with a partially observed state accounting for the uncertainty inherent in real time perceptions of the state of the economy is believed to be critical for the analysis of historical monetary policy we investigate this claim through the lens of a small scale new keynesian model with optimal discretionary policy and partial information about the state the model is estimated using maximum likelihood on us data over the volcker greenspan bernanke regime a comparison of our estimates to those from a version of the model with complete information reveals that under partial information i the federal reserve demonstrates a significant concern for stabilizing fluctuations in the output gap and ii the discrepancy between optimal and observed policy behavior is smaller

the unbanked evidence from indonesia to analyze the prospects for expanding financial access to the poor bank professionals assessed 1 438 households in six provinces in indonesia to judge their creditworthiness about 40 percent of poor households were judged creditworthy according to the criteria of indonesia s largest microfinance bank but fewer than 10 percent had recently borrowed from a micro bank or formal lender possessing collateral appeared as a minor determinant of creditworthiness in keeping with microfinance innovations although these households were judged able to service loans reliably most desired small loans calculations show that the bank given its current fee structure and banking practices will lose money when lending at the scales desired so while innovations have helped to extend financial access it remains difficult to lend in small amounts and cover costs

the productivity impacts of formal and informal land rights evidence from madagascar this paper studies the relationship between land rights and agricultural productivity whereas previous studies used proxies for soil quality and instrumental variables to control for the endogeneity of land titles the data used here include precise soil quality measurements which in principle allow controlling for the unobserved heterogeneity between plots empirical results suggest that formal land rights i e land titles have no impact on productivity but that informal land rights i e landowners subjective perceptions of what they can and cannot do with their plots have heterogeneous impacts on productivity

property rights for the poor effects of land titling secure property rights are considered a key determinant of economic development the evaluation of the causal effects of property rights however is a difficult task as their allocation is typically endogenous to overcome this identification problem we exploit a natural experiment in the allocation of land titles in 1981 squatters occupied a piece of land in a poor suburban area of buenos aires in 1984 a law was passed expropriating the former owners land to entitle the occupants some original owners accepted the government compensation while others disputed the compensation payment in the slow argentine courts these different decisions by the former owners generated an exogenous allocation of property rights across squatters using data from two surveys performed in 2003 and 2007 we find that entitled families substantially increased housing investment reduced household size and enhanced the education of their children relative to the control group these effects however did not take place through improvements in access to credit our results suggest that land titling can be an important tool for poverty reduction albeit not through the shortcut of credit access but through the slow channel of increased physical and human capital investment which should help to reduce poverty in future generations

the demand for tenure security in developing countries abstract we use survey data for manila the philippines to estimate hedonic functions for formal and squatter housing values we show that on average a rented squatter unit in manila would rent for 15 percent more if it were a formal sector unit an owned squatter unit would sell for 25 percent more if it were a formal sector unit these percentages are interpreted as eviction risk discount for squatter dwellings we conclude that assistance projects that provide secure tenure over a wide area will bestow comparatively greater benefits on lower income households and to those in newer less established settlements since the risks that they bear initially are greater

inflation zone targeting abstract we study optimal monetary policy design in a simple model that deviates from the linear quadratic paradigm and provides a rationale for the practice of inflation zone targeting we show that the presence of either zone quadratic preferences or a zone linear relationship between inflation and economic activity provides strong incentives to deviate from conventional linear policies we calibrate the model based on parameters for the united states and the euro area and employ a numerical dynamic programming algorithm to derive the optimal policies with this algorithm we examine the role of uncertainty model structure and relative preference towards economic stability in determining the width of the implied targeted inflation zone

explaining the exchange rate pass through in different prices abstract this paper examines the performance of a variety of new open economy macroeconomic models in explaining the exchange rate pass through in a wide range of prices quantitative versions of different models are used to derive the dynamic response of various prices to an exchange rate shock predicted responses are compared with the evidence based on var models to examine how well different models fit the data the results show that the best fitting model incorporates a number of features highlighted by different strands of the literature sticky prices sticky wages distribution costs and a combination of local lcp and producer currency pricing pcp

money s role in the monetary business cycle a small structural model of the monetary business cycle implies that real money balances enter into a correctly specified forward looking is curve if and only if they enter into a correctly specified forward looking phillips curve the model also implies that empirical measures of real balances must be adjusted for shifts in money demand to accurately isolate and quantify the dynamic effects of money on output and inflation maximum likelihood estimates of the modelos parameters take both these considerations into account but still suggest that money plays a minimal role in the monetary business cycle

asymmetric responses of consumer spending to energy prices a threshold var approach abstract we document asymmetric responses of consumer spending to energy price shocks using a threshold vector autoregressive model estimated with bayesian methods on u s data with high and low real energy inflation regimes positive energy price shocks have a greater negative effect on consumption compared with the increase in consumption that arises from negative energy price shocks for large shocks the cumulative consumption responses are three to five times greater for positive than negative shocks in disaggregated spending data the asymmetric responses are strongest for durable goods consumption but asymmetries are also present in the responses of nondurables and services consumption

staggered price setting with endogenous frequency of adjustment abstract a model of staggered price setting in which the frequency of price changes is endogenous is presented

goods prices and exchange rates what have we learned import prices typically change by a smaller proportion than the exchange rate between the exporting and importing country recent research indicates that common currency relative prices for similar goods exported to different markets are highly correlated with exchange rates between those markets this evidence suggests that incomplete pass through is a consequence of third degree price discrimination while distance matters for market segmentation borders have independent effects the source of the border effect has not been clearly identified furthermore there is little evidence yet to suggest substantial market power is implied by the observed price discrimination

information variables for monetary policy in an estimated structural model of the euro area a small scale new keynesian model for the euro area is estimated with maximum likelihood under the assumptions of imperfect information and discretionary monetary policy the estimated parametrization of this widely used dynamic stochastic model unveils the monetary authorities objectives and the information content of two indicator variables monetary aggregates and real unit labour costs the results highlight a significant policy concern about interest rate smoothing and inflation almost no concern for output gap stabilization emerges regarding indicator variables unit labour costs provide information on potential output that is helpful for stabilization policy no useful information role emerges for monetary aggregates

price adjustment and exchange rate pass through abstract this paper develops a simple theoretical model that can be used to account for the determinants of exchange rate pass through to consumer prices while recent evidence has found low estimates of pass through in many countries there is little consensus on an explanation for this our paper argues that sticky prices represent a key determinant of exchange rate pass through we make this argument in two stages first holding the frequency of price change constant we show that our model calibrated to data from low inflation countries can reproduce the estimates of very low pass through for these countries the principal determinant of low pass through in this case is the slow adjustment of prices we then extend the model to allow the frequency of price change to be endogenous calibrating to a wider set of countries including both low inflation and high inflation countries we show that our model implies that exchange rate pass through is increasing in average inflation but at a declining rate performing the identical exercise on the data we find a striking correspondence between the predictions of the model and those of the data

targeting nominal income growth or inflation within a simple new keynesian model emphasizing forward looking behavior of private agents i evaluate optimal nominal income growth targeting versus optimal inflation targeting when the economy is mainly subject to shocks that do not involve monetary policy trade offs for society inflation targeting is preferable otherwise nominal income growth targeting may be superior because it induces inertial policy making which improves the inflation output gap trade off somewhat paradoxically inflation targeting may be relatively less favorable the more society dislikes inflation and the more persistent are the effects of inflation generating shocks jel e42 e52 f58

money in an estimated business cycle model of the euro area this article examines the role of money in a small scale dynamic general equilibrium model of the euro zone estimated by maximum likelihood the model allows for both intertemporal and intratemporal non separability in preferences we find first that real balances do not affect the marginal utility of consumption second money demand shocks mainly help to forecast real balances while real shocks explain the bulk of price output and interest rates fluctuations third the calculation of the natural rate of interest reveals that the evolution of the interest rate is mostly accounted for by the real sources of fluctuations

transactions costs and nonlinear adjustment in real exchange rates an empirical investigation eolquilibrium models of real exchange rate determination in the presence of transactions costs imply a nonlinear adjustment process toward purchasing power parity ppp conventional cointegration tests which ignore the effect of transactions costs may be biased against the long run ppp hypothesis our results using both monthly data for the interwar period and annual data spanning two centuries clearly reject the linear framework in favor of an exponential smooth transition autoregressive process the systematic pattern in the estimates of the nonlinear models provides strong evidence of mean reverting behavior for ppp deviations and helps explain the mixed results of previous studies

uncertain potential output implications for monetary policy abstract a small forward looking model of the euro area economy is used to investigate the implications of incomplete information about potential output for the conduct of monetary policy three results emerge first under optimal monetary policy output gap uncertainty leads to persistent deviations between the actual and the perceived output gap in response to supply and cost push shocks second in first difference form a simple policy rule such as the taylor rule continues to perform relatively well as long as the output gap is optimally estimated third incomplete information implies that it is optimal to appoint a more hawkish central bank

the size of the informal sector in peru a critical comment on hernando de soto s el otro sendero abstract in el otro sendero hernando de soto presented four statistics concerning i the number of workers and ii the number of hours worked in the informal sector in peru in 1984 iii total informal gdp from 1951 to 1984 and iv the growth of the informal sector from 1985 to 2000 these statistics are being quoted internationally by for example the world bank and the economist of london in this paper we demonstrate that there are apparent inconsistencies between i and ii and that iii and iv are based on the application of inappropriate models that are econometrically suspect

state dependent pricing and business cycle asymmetries we present a tractable dynamic general equilibrium model of state dependent pricing and study the response of output and prices to monetary policy shocks we find important non linearities in these responses for empirically relevant shocks this generates substantially different predictions from time dependent pricing we also find a distinct asymmetry with state dependent pricing prices respond more to positive shocks than they do to negative shocks this is due to a strategic linkage between firms in the incentive for price adjustment our state dependent model can account for business cycle asymmetries in output of the magnitude found in empirical studies

tenure security and urban squatting while recent studies have shown that up to 35 of the total urban population of the third world live in squatter settlements there is a dearth of economic analysis on the phenomenon of squatting this paper attempts to fill this gap the equilibrium model argues that the difference in unit housing prices between the non squatting formal sector of a city and its squatting informal sector reflects the premium associated with a secure tenure status the empirical portion of this paper uses hedonic price techniques to derive the average premium on tenure security in a medium sized philippine city davao results show that formal sector unit dwelling prices are about 18 renters to 58 owners more than in the informal sector these equilibrium price differentials were found to be greater for lower income groups larger household sizes and households with older heads for renters and younger heads for