correlation neglect voting behavior and information aggregation in this paper we analyse elections when voters underestimate the correlation between their information sources correlation neglect we find that this cognitive bias can improve political outcomes we show that the extreme beliefs which result from correlation neglect induce some voters to base their vote on information rather than on political preferences we characterise conditions on the distribution of preferences under which this induces higher vote shares for the optimal policies and better information aggregation

firm dynamics and institutional participation a case study on informality of micro enterprises in peru abstract using panel data on micro enterprises from peru we find evidence suggesting that firm dynamics explain formality where formality is recast as the firm s decision to participate in societal institutions the results suggest that differences in unobservable factors such as entrepreneurial ability contribute largely to differences in growth rates survival chances and societal participation after controlling for such unobserved heterogeneity we find that the probability of participation increases with firm size but not with years in business changes in participation status are sensitive to the initial size and growth trajectory of the firm

bounds for the correlations of expected inflation with real and nominal interest rates abstract this paper derives bounds for the correlations of the unobservable expected rate of inflation with nominal and expected real interest rates for quarterly u s data from 1955 to 1990 the bounds suggest that expected changes in cpi inflation have a weak positive correlation with changes in the nominal t bill yield and a strong negative correlation with expected changes in the real t bill yield

a note on nonstationarity structural breaks and the fisher effect abstract we find empirical evidence that inflation nominal and real interest rates in the us are trend stationary with a structural break in both the unconditional mean and the drift rate of a deterministic trend which occurs shortly after the change in operating procedures of the fed in september 1979 this finding casts some doubts on cointegration tests of the long run fisher effect conducted in recent studies since the results of these tests can be affected by the existence of common structural breaks in the series we propose an alternative test of the fisher effect based on a var representation in appropriately detrended variables we find strong support for the fisher effect both in the medium term and in the long term

imperfect choice or imperfect attention understanding strategic thinking in private information games to understand the thinking process in private information games we use mousetracking to record which payoffs subjects attend to the games have three information states and vary in strategic complexity subjects consistently deviate from nash equilibrium choices and often fail to look at payoffs which they need to in order to compute an equilibrium response choices and lookups are similar when stakes are higher when cluster analysis is used to group subjects according to lookup patterns and choices three clusters appear to correspond approximately to level 3 level 2 and level 1 thinking in level k models and a fourth cluster is consistent with inferential mistakes as for example in qre or cursed equilibrium theories deviations from nash play are associated with failure to look at the necessary payoffs the time durations of looking at key payoffs can predict choices to some extent at the individual level and at the trial by trial level

effort observability and worker productivity towards an explanation of economic dualism this paper suggests an explanation of the wage and productivity differentials between formal and informal sectors in developing countries this explanation is based on differences in the observability of effort that arise from technological differences such as size of operation the authors argue that observability of effort is lower in the formal sector and then show that under reasonable conditions this leads to higher wages and higher effort productivity this is because with lower observability the marginal cost of effort is lower when existing employees are induced to work harder than when more workers are hired explanations for intersectoral differences in factor intensities and sector specific unemployment rates also follow from the authors basic assumptions copyright 1989 by royal economic society

correlation neglect in belief formation many information structures generate correlated rather than mutually independent signals the news media being a prime example this article provides experimental evidence that many people neglect the resulting double counting problem in the updating process in consequence beliefs are too sensitive to the ubiquitous telling and re telling of stories and exhibit excessive swings we identify substantial and systematic heterogeneity in the presence of the bias and investigate the underlying mechanisms the evidence points to the paramount importance of complexity in combination with people s problems in identifying and thinking through the correlation even though most participants in principle have the computational skills that are necessary to develop rational beliefs many approach the problem in a wrong way when the environment is moderately complex thus experimentally nudging people s focus towards the correlation and the underlying independent signals has large effects on beliefs

bayesian networks and boundedly rational expectations i present a framework for analyzing decision makers with an imperfect understanding of their environment s correlation structure the decision maker faces an objective multivariate probability distribution his own action is one of the random variables he is characterized by a directed acyclic graph over the set of variables his subjective belief filters the objective distribution through his graph via the factorization formula for bayesian networks this belief distortion implies that the decision maker s long run behavior may affect his perception of the consequences of his actions accordingly i define a personal equilibrium notion of optimal choices i show how recent models of boundedly rational expectations as well as new ones e g reverse causality can be subsumed into this framework as special cases some general properties of the bayesian network representation of subjective beliefs are presented as well as a missing data foundation

bubbles crashes and endogenous expectations in experimental spot asset markets1 spot asset trading is studied in an environment in which all investors receive the same dividend from a known probability distribution at the end of each of t 15 or 30 trading periods fourteen of twenty two experiments exhibit price bubbles followed by crashes relative to intrinsic dividend value when traders are experienced this reduces but does not eliminate the probability of a bubble the regression of changes in mean price on lagged excess bids number of bids minus the number of offers in the previous period p pt a f b 1 o l supports the hypothesis that a e d the one period expected value of the dividend and that f 0 where excess bids is a surrogate measure of excess demand arising from homegrown capital gains losses expectations thus when bt 1 o goes to zero we have convergence to rational expectations in the sense of fama 1970 that arbitrage becomes unprofitable the observed bubble phenomenon can also be interpreted as a form of temporary myopia tirole 1982 from which agents learn that capital gains expectations are only temporarily sustainable ultimately inducing common expectations or priors tirole 1982 four of twenty six experiments all using experienced subjects yield outcomes that appear to the chart s eye to converge early to rational expectations although even in these cases we get 0 and small price fluctuations of a few cents that invite scalping

can futures market data be used to understand the behavior of real interest rates this paper examines whether futures market data can be used to understand the behavior of real interest rates several ways of examining the data indicate that futures market data are not particularly informative about real interest rates not only does this evidence cast some doubt on results in previous research that make use of futures market data to draw inferences about real interest rates but it also indicates that future research on real interest rates may need to turn to a different line of attack understanding the behavior of real interest rates is a central issue in financial economics in previous research on this topic several approaches have been used to measure real interest rates in one approach real interest rates have been calculated by subtracting survey data on inflation expectations such as the livingston data from nominal interest rates the problem with survey based measures of real interest rates is that they are only as good as the survey measure of inflation expectations and there may be little incentive for the survey respondents to answer accurately an even more telling criticism of survey based measures often ignored in the literature is that the behavior of market expectations in driven by economic agents ai the margin who are eliminating unexploited profit opportunities market expectations are unlikely therefore to be well measured by the average expectations of survey respondents 2 because of doubts about survey based measures of real interest rates other

rational inattention competitive supply and psychometrics we introduce a simple method of recovering attention costs from choice data our method rests on a precise analogy with production theory costs of attention determine consumer demand and consumer welfare just as a competitive firm s technology determines its supply curve and profits we implement our recovery method experimentally outline applications and link our work to the broader literature on inattention and mistaken decisions

excusing selfishness in charitable giving the role of risk decisions involving charitable giving often occur under the shadow of risk a common finding is that potential donors give less when there is greater risk that their donation will have less impact while this behaviour could be fully rationalized by standard economic models this article shows that an additional mechanism is relevant the use of risk as an excuse not to give in a laboratory study participants evaluate risky payoffs for themselves and risky payoffs for a charity when their decisions do not involve tradeoffs between money for themselves and the charity they respond very similarly to self risk and charity risk by contrast when their decisions force tradeoffs between money for themselves and the charity participants act more averse to charity risk and less averse to self risk these altered responses to risk bias participants towards choosing payoffs for themselves more often consistent with excuse driven responses to risk additional results support the existence of excuse driven types

sizing the government is there such a thing as an optimal government size we investigate the so called armey curve which claims an inverted u shaped relationship between government size and economic performance using non parametric data envelopment analysis dea the dea scores are linked to control variables such as initial per capita income openness population density urbanization country size and family size for 23 oecd countries we estimate the country specific efficiency scores which reveal the extent to which a country uses excess public resources to achieve the observed growth rate of gdp

which is a better investment choice in the hong kong residential property market a big or small property the relationship between property size and property investment yield is an interesting issue in the real estate market previous studies usually use the mean variance criterion to compare the return risk profiles of the yields of different property sizes in the united states however this criterion has a few shortcomings this article provides the first attempt to use a stochastic dominance approach to analyse this issue we adopt two powerful stochastic dominance tests to compare the yields of five property size classes in the hong kong residential property market in our study we analyse two possible investment outcomes 1 investors could not rent out their properties and thus they would gain lose from the appreciation depreciation of residential property prices 2 investors could also gain from rental incomes our empirical results provide strong evidence to show that the yields of smaller property classes stochastically dominate the yields of bigger property classes suggesting that buying smal

formal measures of the informal sector wage gap in mexico el salvador and peru using comparable micro level data from three countries we ask what type of person works in the informal sector and whether informal workers earn lower wages than observationally equivalent workers in the formal sector the characteristics of informal workers are similar across countries surprisingly when we control for these personal characteristics we find a significant wage premium associated with formal employment in el salvador and peru but a premium associated with work in the informal sector in mexico a model of endogenous selection offers little help in explaining the differences in wage patterns the research casts doubt on the received wisdom that the informal sector always and everywhere is a poorly paid but easily entered refuge for those who have no other employment opportunities this abstract was borrowed from another version of this item

a sparsity based model of bounded rationality this article defines and analyzes a sparse max operator which is a less than fully attentive and rational version of the traditional max operator the agent builds as economists do a simplified model of the world which is sparse considering only the variables of first order importance his stylized model and his resulting choices both derive from constrained optimization still the sparse max remains tractable to compute moreover the induced outcomes reflect basic psychological forces governing limited attention the sparse max yields a behavioral version of basic chapters of the microeconomics textbook consumer demand and competitive equilibrium i obtain a behavioral version of marshallian and hicksian demand arrow debreu competitive equilibrium the slutsky matrix the edgeworth box roy s identity and so on the slutsky matrix is no longer symmetric nonsalient prices are associated with anomalously small demand elasticities because the consumer exhibits nominal illusion in the edgeworth box the offer curve is a two dimensional surface rather than a one dimensional curve as a result different aggregate price levels correspond to materially distinct competitive equilibria in a similar spirit to a phillips curve the arrow debreu welfare theorems typically do not hold this framework provides a way to assess which parts of basic microeconomics are robust and which are not to the assumption of perfect maximization jel codes d01 d03 d11 d51

money supply announcements interest rates and foreign exchange abstract this paper presents a test of the joint hypothesis that money supply announcements affect the real interest rate and that changes in the real interest rate affect the exchange rate in the short run the test results are consistent with the joint hypothesis for example it is found that announcement of an unexpected jump in the money supply is accompanied by an increase in interest rates and an appreciation of the dollar if the rise in interest rates was entirely due to higher inflationary expectations the dollar should not appreciate

reserves announcements and interest rates does monetary policy matter the author provides evidence on the perceived existence of strong liquidity effect the analysis is based on the response of the term structure of interest rates to the weekly federal reserve announcements of bank reserves during the post october 1979 period it is shown that unanticipated changes in the mix between borrowed and nonborrowed reserves cause expected real interest rates to change after the announcement because they provide information about a future change in the supply of money a precise model is developed and tested during subperiods of nonborrowed and borrowed reserves targeting by the fed

stock market returns and real activity a note this note presents empirical results relating a measure of the variability of stock market returns to fluctuations in real economic activity the results of our tests indicate that changes in the log of real gnp and unemployment are grangercaused by the variation of stock market returns this result can be interpreted as being supportive of the notion that the arrival of information relevant to production decisions impacts real output and employment slowly through time referred to elsewhere in the literature as the lagged information hypothesis this idea is common to a number of models relating changes in real variables to new information about commodity prices e g lucas 14 sargent and wallace 171 1 based on the concept of rational expectations the hypothesis is concerned with the predictive content of historical information in explaining real activity it has been previously examined by e g sargent 16 and nelson 15 for the case of known information captured by changes in commodity prices in this note we focus instead on information as reflected in security prices stock prices should portray a more general index of information which should encompass information already impounded in commodity prices and use of stock price data avoids many of the difficulties encountered in measuring and aggregating commodity prices the relationship between stock returns and economic activity has also been explored in fama 5 fama and gibbons 6 and others in various contexts

modelling the informal sector formally abstract the theoretical characterization of formal informal sector dualism by labor market dualism is integrated with its empirical characterization by size dualism by supposing that the minimum formal sector wage is only enforced for firms greater than a certain size a firm s size varies directly with the talent of its enterpreneur manager and the choice between formal and informal sector entrepreneurship is determined endogenously it is then shown that the size gap between the smallest formal sector firm and largest informal sector firm varies directly with the formal informal sector wage differential which in turn is shown as expected to increase the further is the minimum wage above the market clearing wage the comparative statics of changes in the size of the firm above which the minimum wage is enforced are also examined

costly information acquisition experimental analysis of a boundedly rational model the directed cognition model assumes that agents use partially myopic option value calculations to select their next cognitive operation the current paper tests this model by studying information acquisition in two experiments in the first experiment information acquisition has an explicit financial cost in the second experiment information acquisition is costly because time is scarce the directed cognition model successfully predicts aggregate information acquisition patterns in these experiments when the directed cognition model and the fully rational model make demonstrably different predictions the directed cognition model better matches the laboratory evidence jel d83

clumped or piecewise evidence on preferences for information in this paper we examine individuals attitudes toward the timing of information we test a theoretical prediction that people prefer to get information clumped together rather than piecewise we conduct a controlled lab experiment where subjects participate in a lottery and can choose between different resolutions of uncertainty clumped or piecewise and analyze which kind of resolution is preferred two additional treatments allow us to get a quantitative measure of subjects preferences over different information structures our data provide little support for a systematic aversion to piecewise information on the aggregate level in additional treatment conditions we demonstrate the robustness of our findings and explore potential explanations data as supplemental material are available at http dx doi org 10 1287 mnsc 2013 1884 this paper was accepted by john list behavioral economics

an experimental study of persuasion bias and social influence in networks abstract in many areas of social life individuals receive information about a particular issue of interest from multiple sources when these sources are connected through a network then proper aggregation of this information by an individual involves taking into account the structure of this network the inability to aggregate properly may lead to various types of distortions in our experiment four agents all want to find out the value of a particular parameter unknown to all agents receive private signals about the parameter and can communicate their estimates of the parameter repeatedly through a network the structure of which is known by all players we present results from experiments with three different networks we find that the information of agents who have more outgoing links in a network gets more weight in the information aggregation of the other agents than under optimal updating our results are consistent with the model of persuasion bias of demarzo et al 2013 q j econ 909 and at odds with an alternative heuristic according to which the most influential agents are those with more incoming links

increasing wage dispersion and the changes in relative employment and wages in mexico s urban informal sector 1987 1993 this study analyses the role of changes in informal formal relative employment wage levels and wage inequality in explaining increasing wage dispersion in mexico during the 1987 1993 period from 1987 to 1993 the variance of the log of hourly wages for mexican workers increased by more than 50 per cent using data from the encuesta nacional de empleo urbano we find that this increase in the overall wage dispersion was mainly driven by increasing wage dispersion in the formal sector coupled with a faster growth in formal sector employment as a percentage of total employment however compression in the distribution of wages within the informal sector contributed to substantially slowdown the increasing overall wage inequality about 60 per cent of the 1987 1993 4 65 percentage point reduction in the informal sector share of total employment is explained by changes in the structure that determines sectoral employment the rest is explained by changes in the composition of the labour force particularly in

inflation output and money this paper uses money demand theory and a rational expectations version of the quantity theory of money to study inflation in the united states during the post korean war period the major results are as follows 1 the theory and tests explain the phenomenon of stagflation that is the negative relation between inflation and real activity observed during the post 1953 period the analysis calls into question the many variants of the phillips curve which presume that inflation real activity relations are positive 2 consistent with the models of patinkin 1961 and fama 1980 monthly quarterly and annual data indicate that the base currency plus reserves held against deposits is the relevant monetary variable in the inflation process and that demand deposits are irrelevant the direct policy implication is that the base is the key monetary variable in the control of inflation 3 the most convincing evidence for the simple quantity theory view of inflation proposed here comes from the comparison of the conditional exmoney demand theory and the quantity theory of money are used to study the inflation process as predicted by the model monthly quarterly and annual data indicate that inflation is positively related to money growth rates and negatively related to growth rates of real activity the theoretical and empirical origins of stagflation are explained and changes in monetary arrangements to simplify the control of inflation are prescribed

segmented labor markets in ldcs this discussion is confined to the urban labor markets in developing countries and to manual workers it outlines the process by which the urban market for workers of low skill tends to develop a sector of high wage often accompanied by job security and fringe benefits unavailable to the large number of workers outside this sector it views the problem of large wage differentials within the urban manual work force more as one of distribution of income than as creating distortions of income or inefficiency in the neoclassical sense the paper concludes that the difference in efficiency wages and hence of labor costs between different size classes of enteprises could be much less than the observed wage gap the urban economy appears to be characterized by widening wage differentials between the formal and the residual sectors with a declining proportion of the urban labor force employed in the former what happens to income distribution in its lower reaches depends crucially on the dynamism of the self employed sector of petty producers and traders which often shows high returns to small doses of capital and entrepreneurship and which may provide an alternative to job seekers not able to get into the high wage sector

inflation real returns and capital investment we find evidence for the hypothesis of mundell 1963 and tobin 1965 that the expected real return component of interest rates is negatively related to the expected inflation component in the mundell tobin model the variation in expected real returns is caused by the variation in expected inflation our evidence suggests however that the variation in expected real returns is more fundamentally an outcome of the capital expenditures process equilibrium expected real returns vary directly with capital expenditures in order to induce equilibrium allocations of resources between consumption and investment this positive relation between expected real returns and real activity which comes out of the real sector combines with a negative relation between expected inflation and real activity which is traced to the monetary sector thus inducing the negative relation between expected inflation and expected real returns predicted by mundell and tobin but explained in terms of a model much different from theirs

correlation neglect incentives and welfare abstract we modify the holmstrom milgrom model by letting the agent neglect the correlation between performance measures whenever true and perceived correlation are sufficiently low correlation neglect enhances material welfare and expected profit otherwise material welfare diminishes and the agent may benefit

inflation hedging properties of regional chinese real estate market evidence from 35 cities in china the housing markets in china have been gaining considerable interest from investors but the inflation hedging characteristics of housing remain ambiguous based on chinese city level data this study evaluates different inflation hedging properties in eastern middle and western real estate markets using panel vector autoregressive pvar models findings suggest middle real estate markets afford the best hedging opportunities for expected inflation which is robust considering housing market heterogeneity financial crisis and the 2010 purchase restriction order moreover hedging efficacy of anticipated inflation differs between markets with low and high supply demand ratio

housing price variability national and local impacts this article examines the influence of national and local forces on housing prices in 20 local us real estate markets during the recent housing price run up and decline we use reduced form panel data fixed effects models with robust ses to determine the impact of national and local effects on housing prices in 20 us cities across time a national home price index and mortgage rate are used to measure national impacts on the local markets a mix of socio economic variables estimates local impacts we find no results indicating that national trends lack relevance in local markets however we find wide support for the additional inclusion of local socio economic factors in all markets the findings are consistent with an environment in which national polices and trends influence all markets however local policymakers and investors can continue to expect geographic differences in market outcomes

influential listeners an experiment on persuasion bias in social networks abstract this paper presents an experimental investigation of persuasion bias a form of bounded rationality whereby agents communicating through a social network are unable to account for repetitions in the information they receive we find that after repeated communication within a social network social influence depends not only on being listened to by many others but also on listening to many others we show that persuasion bias can be viewed as an extreme case of a generalized boundedly rational updating rule in which agents receive more or less attention depending on how many other agents they listen to the results indicate that behavior in the experiment is consistent with an updating rule according to which agents social influence is proportional to their indegree

nonstationarity of regressors and tests on real interest rate behavior this article reexamines tests on the behavior of real interest rates in light of recent results that indicate that regressors are nonstationary and not strictly exogenous strong rejections of constancy of real interest rates that have been found previously in the literature are confirmed here although there is some evidence here that real rates are negatively correlated with expected inflation this result is not as strong as has been indicated by previous research in addition results that found a significant negative correlation between real rates and nominal rates before 1979 are not supported here although there is evidence for a positive correlation of real and nominal interest rates after 1979

overconfidence in political behavior this paper studies theoretically and empirically the role of overconfidence in political behavior our model of overconfidence in beliefs predicts that overconfidence leads to ideological extremeness increased voter turnout and stronger partisan identification the model also makes nuanced predictions about the patterns of ideology in society these predictions are tested using unique data that measure the overconfidence and standard political characteristics of a nationwide sample of over 3 000 adults our numerous predictions find strong support in these data in particular we document that overconfidence is a substantively and statistically important predictor of ideological extremeness voter turnout and partisan identification jel c83 d03 d72 d83

learning through noticing theory and experimental evidence in farming existing learning models attribute failures to learn to a lack of data we model a different barrier given the large number of dimensions one could focus on when using a technology people may fail to learn because they failed to notice important features of the data they possess we conduct a field experiment with seaweed farmers to test a model of learning through noticing we find evidence of a failure to notice on some dimensions farmers do not even know the value of their own input interestingly trials show that these dimensions are the ones that farmers fail to optimize furthermore consistent with the model we find that simply having access to the experimental data does not induce learning instead farmers change behavior only when presented with summaries that highlight the overlooked dimensions we also draw out the implications of learning through noticing for technology adoption agricultural extension and the meaning of human capital we thank andy newman matthew rabin and andrei shleifer for helpful comments as well as seminar participants at the behavioural decision theory conference berkeley bu and harvard mit

housing and the macroeconomy inflation and the financial accelerator three themes connecting housing and the macroeconomy are discussed first evidence is presented for the property market as one of the drivers of u s consumer price inflation second key drivers of house prices are explained to account for the remarkable diversity of international experience finally three potential links between housing credit and the financial accelerator are discussed these are the consumption channel the investment channel and feedback between bad loans and risk spreads via the financial system and how institutional differences between countries can explain the presence absence and magnitudes of these linkages

real interest rates and inflation an ex ante empirical analysis we develop a method of measuring ex ante real interest rates using prices of index and nominal bonds employing this method and newly available data we directly test the fisher hypothesis that the real rate of interest is independent of inflation expectations we find a negative correlation between ex ante real interest rates and expected inflation this contradicts the fisher hypothesis but is consistent with the theories of mundell and tobin darby and feldstein and stulz we also find that nominal interest rates include an inflation risk premium that is positively related to a proxy for inflation uncertainty

learning through noticing theory and evidence from a field experiment we consider a model of technological learning under which people learn through noticing they choose which input dimensions to attend to and subsequently learn about from available data using this model we show how people with a great deal of experience may persistently be off the production frontier because they fail to notice important features of the data they possess we also develop predictions on when these learning failures are likely to occur as well as on the types of interventions that can help people learn we test the model s predictions in a field experiment with seaweed farmers the survey data reveal that these farmers do not attend to pod size a particular input dimension experimental trials suggest that farmers are particularly far from optimizing this dimension furthermore consistent with the model we find that simply having access to the experimental data does not induce learning instead behavioral changes occur only after the farmers are presented with summaries that highlight previously unattended to relationships in the data jel codes d03 d83 o13 o14 o30 q16

the inflation hedging properties of turkish reits this study empirically tests the inflation hedging abilities of turkish reits in comparison to the indices of common stocks listed on the istanbul stock exchange ise over the period december 1999 to december 2004 two main factors motivate this study first compared to their counterparts in developed capital markets turkish reits have some important tax incentives as well as flexibility in managing their portfolios second the turkish economy provides a rare and good opportunity to test the hedging behaviour of real estate stocks in periods of both high and moderate inflation rates the empirical results show that turkish reits in general provide a better hedge against both actual and expected inflation than do the ise common stock indices dividing the entire sample period into the high and moderate inflation sub periods we find that the hedging ability of reits is better under high inflation than under moderate inflation

capital inflows and asset prices evidence from emerging asia abstract the withdrawal of foreign capital from emerging countries at the height of the recent financial crisis and its quick return sparked a debate about the impact of capital flow surges on asset markets this paper addresses the response of property prices to an inflow of foreign capital for that purpose we estimate a panel var on a set of asian emerging market economies for which the waves of inflows were particularly pronounced and identify capital inflow shocks based on sign restrictions our results suggest that capital inflow shocks have a significant effect on the appreciation of house prices and equity prices capital inflow shocks account for roughly twice the portion of overall house price changes they explain in oecd countries we also address cross country differences in the house price responses to shocks which are most likely due to differences in the monetary policy response to capital inflows

defining and estimating underground and informal economies the new institutional economics approach abstract a taxonomy of underground economies is elaborated based on the new institutional approach to economic development members of formal sectors confront different sets of transformation and transaction costs than do members of informal sectors and these differences are regarded as crucial to the development process the paper distinguishes illegal unreported unrecorded and informal economies and examines the conceptual and empirical linkages among them alternative micro and macro methodologies for measuring underground activities are reviewed and evaluated including census and survey procedures discrepancy and monetary methods when you cannot measure your knowledge is meager and unsatisfactory lord kelvin inscription at harper library university of chicago

bilateral exchange rates and risk premia abstract the paper develops a theoretical model of the risk premium in a bilateral exchange rate representative agents in both countries are assumed to hold open positions in foreign exchange together with risky assets denominated in their own currencies also past surpluses in the current account of the balance of payments lead to net foreign asset positions which may partially be covered in the forward markets our two period mean variance model for optimizing investors is combined with standard assumption about the behavior of real exchange rates to give a reduced form equation for the discrepancies between spot rates and lagged forward rates the model is tested for the dollar dm dollar sterling and dollar yen exchange rates using monthly data for the period 1976 86 the null hypothesis of no risk premium is rejected for each of the currencies reported

social connectivity media bias and correlation neglect we propose a model of political persuasion in which a biased newspaper aims to convince voters to vote for the government each voter receives the newspaper s report as well as an independent private signal voters then exchange this information on social media and form posterior beliefs neglecting correlation among signals an increase in connectivity increases the newspaper s bias if voters are ex ante predisposed to vote against the government and reduces the bias if they are predisposed in favour of the government while more precise independent signals reduce the newspaper s optimal bias the bias remains positive even when connectivity becomes large thus even with a large number of social connections the election produces an inefficient outcome with positive probability implying a failure of the condorcet jury theorem

a positive economic theory of regulatory enforcement a positive economic model of regulatory enforcement is developed th at allows the agency to use both legal and informal methods to gain compliance with the law the paper fills a gap in the economic literature on regulation by developing and testing a model of enforcement it also provides a theoretical framework for the recent empirical work of political scientists and sociologists on enforcement practices copyright 1988 by royal economic society

evaluation periods and asset prices in a market experiment we test whether the frequency of feedback information about the performance of an investment portfolio and the flexibility with which the investor can change it influence her risk attitude in markets in line with the prediction of myopic loss aversion benartzi and thaler 1995 we find that more information and more flexibility result in less risk taking market prices of risky assets are significantly higher if feedback frequency and decision flexibility are reduced this result supports the findings from individual decision making and shows that markets do not eliminate such behavior

the neglect of correlation in allocation decisions we study the effect of variation in correlation on investment decision in an experimental two asset application comparison of allocations across problems suggests that subjects neglect probabilistic information on the joint distribution of returns and base their allocations on the observed return levels for the two assets when asked to predict future returns subjects try to replicate the historical distribution thereby falling into the probability matching bias predictions drastically vary when correlations become negative while allocations are not significantly affected by changes in sign of correlation the observed allocation patterns contradict the predictions of standard models of choice the inconsistency is attributed to common behavioral bias in financial decision field implications of the results are discussed

an idea in good currency and how it grew the informal sector abstract the informal sector is an exceedingly fuzzy concept which has come into wide use because it seemed to address the interests of a number of very diverse groups those interested in growth planning those interested in alleviating poverty marxist structuralists and those interested in economic accounting the use of the concept has been helpful in directing attention to phenomena previously ignored but adopting the term obscures analysis of central issues and is counterproductive we should rather specify critical policy issues and design field research around these

what you see is all there is news reports and communication are inherently constrained by space time and attention as a result news sources often condition the decision of whether to share a piece of information on the similarity between the signal and the prior belief of the audience which generates a sample selection problem this article experimentally studies how people form beliefs in these contexts in particular the mechanisms behind errors in statistical reasoning i document that a substantial fraction of experimental participants follows a simple what you see is all there is heuristic according to which participants exclusively consider information that is right in front of them and directly use the sample mean to estimate the population mean a series of treatments aimed at identifying mechanisms suggests that for many participants unobserved signals do not even come to mind i provide causal evidence that the frequency of such incorrect mental models is a function of the computational complexity of the decision problem these results point to the context dependence of what comes to mind and the resulting errors in belief updating

short term interest rates as predictors of inflation on testing the hypothesis that the real rate of interest is constant in an innovative and provocative paper in this review eugene fama presents evidence which appears to be consistent with the joint hypothesis that the real rate of interest ignoring taxes is a constant and that the market for u s treasury bills is efficient in the sense of embodying rational expectations those findings are strikingly at variance with a long list of previous studies which seemed to support the view that the real rate of interest varies over time and can be related to economic variables such as real output monetary policy and so forth 2 the methodologies which lead to these contradictory conclusions are quite different previous studies had followed the lead of irving fisher by relating nominal interest rates to distributed lags on past rates of inflation 3 these distributed lags are generally interpreted as approximations to the market s expected rate of inflation and thus any remaining variation is attributed to variation in the real rate 4 fama s methodology on the other hand draws on the fact that the difference between the market interest rate and the subsequently observed rate of inflation the ex post real interest rate consists by definition of the ex ante real interest rate plus a pure forecasting error 5 the hypothesis of market efficiency implies that these forecasting errors must be serially random thus observing ex post real rates is equivalent to observing ex ante real rates with random measurement error these errors of course confound the problem of identifying variation in the ex ante real rate in this paper we will argue that the relative magnitude of these measurement errors is such that the tests carried out by fama were not powerful enough to reject the joint hypothesis that the ex ante real rate is a constant and expectations are rational more powerful tests which are presented in this paper using the same data do lead to rejection of that hypothesis of course rejection

search and satisficing many everyday decisions are made without full examination of all available options and as a result the best available option may be missed we develop a search theoretic choice experiment to study the impact of incomplete consideration on the quality of choices we find that many decisions can be understood using the satisficing model of herbert simon 1955 most subjects search sequentially stopping when a satisficing level of reservation utility is realized we find that reservation utilities and search order respond systematically to changes in the decision making environment jel d03 d12 d83