why do we smile on the determinants of the implied volatility function abstract we report simple regressions and granger causality tests in order to understand the pattern of implied volatilities across exercise prices we employ all calls and puts transacted between 16 00 and 16 45 on the spanish ibex 35 index from january 1994 to april 1996 transaction costs proxied by the bid ask spread seem to be a key determinant of the curvature of the volatility smile moreover time to expiration the uncertainty associated with the market and the relative market momentum are also important variables in explaining the smile

consumption and debt response to unanticipated income shocks evidence from a natural experiment in singapore abstract this paper uses a unique panel dataset of consumer financial transactions to study how consumers respond to an exogenous unanticipated income shock consumption rose significantly after th

wage stagnation rising inequality and the financial crisis of 2008 the most widely embraced explanations of the financial crisis of 2008 have centered upon inadequate regulation stemming from laissez faire ideology combined with low interest rates although these widely acknowledged causal factors are true beneath them lie deeper determining forces that have received less notice wage stagnation and a dramatic increase in inequality in the u s over the preceding 35 years wage stagnation and heightened inequality generated three dynamics that made the economy vulnerable to systemic dysfunction the first is that they constrained consumption reducing profitable investment potential in the real economy and thereby encouraging an every wealthier elite to flood financial markets with credit helping keep interest rates low encouraging the creation of new credit instruments and greater indebtedness and fueling speculation the second dynamic is that consumption externalities were generated forcing individuals to struggle harder to find ways to maintain the welfare of their families and maintain their relative social status the consequence was that over the preceding three decades household saving rates plummeted households took on ever greater debt and worked longer hours the third dynamic is that as the rich took larger shares of income and wealth they gained more command over ideology and hence politics reducing the size of government cutting taxes on the rich and reducing welfare for the poor deregulating the economy and failing to regulate newly evolving credit instruments flowed out of this ideology

financialisation income distribution and aggregate demand in the usa this paper investigates the effects of financialisation and functional income distribution on aggregate demand in the usa by estimating the effects of the increase in rentier income dividends and interest payments and housing and financial wealth on consumption and investment the redistribution of income in favour of profits suppresses consumption whereas the increase in the rentier income and wealth has positive effects a higher rentier income decreases investment without the wealth effects the overall effect of the changes in distribution on aggregate demand would have been negative thus a pro capital income distribution leads to a slightly negative effect on growth i e the usa economy is moderately wage led

option pricing when the variance changes randomly theory estimation and an application in this paper we examine the pricing of european call options on stocks that have vari ance rates that change randomly we study continuous time diffusion processes for the stock return and the standard deviation parameter and we find that one must use the stock and two options to form a riskless hedge the riskless hedge does not lead to a unique option pricing function because the random standard deviation is not a traded security one must appeal to an equilibrium asset pricing model to derive a unique option pricing function in general the option price depends on the risk premium associated with the random standard deviation we find that the problem can be simplified by assuming that volatility risk can be diversified away and that changes in volatility are uncorrelated with the stock return the resulting solution is an integral ofthe black scholes formula and the distribution function for the variance of the stock price we show that accurate option prices can be computed via monte carlo simulations and we apply the model to a set of actual prices

the pricing of options on assets with stochastic volatilities one option pricing problem that has hitherto been unsolved is the pricing of a european call on an asset that has a stochastic volatility this paper examines this problem the option price is determined in series form for the case in which the stochastic volatility is independent of the stock price numerical solutions are also produced for the case in which the volatility is correlated with the stock price it is found that the black scholes price frequently overprices options and that the degree of overpricing increases with the time to maturity one option pricing problem that has hitherto remained unsolved is the pricing of a european call on a stock that has a stochastic volatility from the work of merton 12 garman 6 and cox ingersoll and ross 3 the differential equation that the option must satisfy is known the solution of this differential equation is independent of risk preferences if a the volatility is a traded asset or b the volatility is uncorrelated with aggregate consumption if either of these conditions holds the risk neutral valuation arguments of cox and ross 4 can be used in a straightfoward way this paper produces a solution in series form for the situation in which the stock price is instantaneously uncorrelated with the volatility we do not assume that the volatility is a traded asset also a constant correlation between the instantaneous rate of change of the volatility and the rate of change of aggregate consumption can be accommodated the option price is lower than the blackscholes b s 1 price when the option is close to being at the money and higher when it is deep in or deep out of the money the exercise prices for which overpricing by b s takes place are within about ten percent of the security price this is the range of exercise prices over which most option trading takes place so we may in general expect the b s price to overprice options this effect is exaggerated as the time to maturity increases one of the most surprising implications of this is that if the b s equation is used to determine the implied volatility of a near the money option the longer the time to maturity the lower the implied volatility numerical solutions for the case in which the volatility is correlated with the stock price are also examined the stochastic volatility problem has been examined by merton 13 geske 7 johnson 10 johnson and shanno 11 eisenberg 5 wiggins 16 and

interest rate volatility and the term structure a two factor general equilibrium model we develop a two factor general equilibrium model of the term structure the factors are the short term interest rate and the volatility of the short term interest rate we derive closed form expressions for discount bonds and study the properties of the term structure implied by the model the dependence of yields on volatility allows the model to capture many observed properties of the term structure we also derive closed form expressions for discount bond options we use hansen s generalized method of moments framework to test the cross sectional restrictions imposed by the model the tests support the two factor model there are essentially two approaches to the modeling of the term structure of interest rates in continuous time the equilibrium approach pioneered by

international competition income distribution and economic growth this paper shows that the neo keynesian case for wage led growth does not generally hold in an open economy model wage increases cause a loss of competitiveness that reduces the trade balance if the economy is relatively open to trade and price elasticities satisfy certain restrictions the worsening of the trade balance more than outweighs the increase in workers consumption thus reducing the growth rate the main theoretical innovation is a flexible markup pricing rule that allows changes in unit labor costs and exchange rates to affect profit margins implications for international relations and class conflict are discussed copyright 1989 by oxford university press

income distribution and current account imbalances we develop a three country stock flow consistent macroeconomic model to study the effects of changes in both personal and functional income distribution on national current account balances each country has a household sector and a non household corporate sector the household sector is divided into income deciles and consumer demand is characterized by upward looking status comparisons following the relative income hypothesis of consumption the strength of consumption emulation depends on country specific institutions the model is calibrated for the united states germany and china simulations suggest that a substantial part of the increase in household debt and the decrease in the current account in the united states since the early 1980s can be explained by the interplay of rising top end household income inequality and institutions on the other hand the weak domestic demand and increasing current account balances of germany and china since the mid 1990s are strongly related to shifts in the functional income distribution at the expense of the household sector

the informational content of implied volatility implied volatility is widely believed to be informationally superior to historical volatility because it is the markets forecast of future volatility but for s p 100 index options the most actively traded contract in the united states we find implied volatility in aggregate and across subsamples separated by maturity and strike price implied volatility has virtually no correlation with future volatility and it does not incorporate the information contained in recent observed volatility article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

an equilibrium model of bond pricing and a test of market efficiency in two previous and related papers 3 4 the authors have reported the results of estimating a particular equilibrium model of bond pricing using quarterly data on canadian government bonds for the period 1964 to 1979 this paper reports the results of applying a similar model to the pricing of u s government bonds for the period 1958 1979 using data from the crsp government bond file the paper also extends the previous empirical analysis by evaluating the ability of the pricing model to detect underpriced and overpriced bonds the data reveal a strong relation between price prediction errors and subsequent bond returns

the contribution of wealth concentration to the subprime crisis a quantitative estimation the crisis that broke out in mid 2007 was caused by the fact that the cdo market had grown to a size sufficient to wreak general havoc when it suddenly collapsed several authors have argued that economic inequality was important to the growth of this market this paper attempts to strengthen this argument by concentrating attention on global wealth concentration after summarising recent evidence on the negative impact of investor demand on us bond yields in the pre crisis period new evidence regarding the specific contribution of high net worth individuals to this negative impact is presented the paper then goes on to show how after having helped to caused a yield problem in the major us debt markets high net worth individuals via hedge funds continued to be a major source of the pressure on us banks to resolve this yield problem through the mass production of cdos

consumer spending and the economic stimulus payments of 2008 abstract we measure the change in household spending caused by receipt of the economic stimulus payments of 2008 using questions added to the consumer expenditure survey and variation from the ran

reading the smile the message conveyed by methods which infer risk neutral densities abstract in this study we compare the quality and information content of risk neutral densities obtained by various methods we consider a non parametric method based on a mixture of log normal densities the semi parametric ones based on an hermite approximation or based on an edgeworth expansion the parametric approach of malz which assumes a jump diffusion for the underlying process and heston s approach assuming a stochastic volatility model we apply those models on ff dm exchange rate options for two dates models differ when important news hits the market here anticipated elections the non parametric model provides a good fit to options prices but is unable to provide as much information about market participants expectations than the jump diffusion model

post keynesian stock flow consistent modelling a survey the aim of the paper is to provide an overview of the current stock ow consistent sfc literature indeed we feel the sfc approach has recently led to a blossoming literature requiring a new summary after the work of dos santos and above all after the publication of the main reference work on the methodology godley and lavoie s monetary economics an integrated approach to credit money income production and wealth the paper is developed along the following lines first a brief historical analysis investigates the roots of this class of models that can be traced as far back as 1949 and the work of copeland second the competing points of view regarding some of its main controversial aspects are underlined and used to classify the different methodological approaches followed in using these models namely we discuss i how the models are solved ii the treatment of time and its implication and ii the need or not for microfoundations these results are then used in the third section of the paper to develop a bifocal perspective which allows us to divide the literature reviewed according to both its subject and the methodology we explore various topics such as financialisation exchange rate modelling policy implication the need for a common framework within the post keynesian literature and the empirical use of sfc models finally the conclusions present some hypotheses and wishes for the possible lines of development of sfc models

household expenditure and the income tax rebates of 2001 using questions expressly added to the consumer expenditure survey we estimate the change in consumption expenditures caused by the 2001 federal income tax rebates and test the permanent income hypothesis we exploit the unique randomized timing of rebate receipt across households households spent 20 to 40 percent of their rebates on nondurable goods during the three month period in which their rebates arrived and roughly two thirds of their rebates cumulatively during this period and the subsequent three month period the implied effects on aggregate consumption demand are substantial consistent with liquidity constraints responses are larger for households with low liquid wealth or low income

occbin a toolkit for solving dynamic models with occasionally binding constraints easily abstract the toolkit adapts a first order perturbation approach and applies it in a piecewise fashion to solve dynamic models with occasionally binding constraints our examples include a real business cycle model with a constraint on the level of investment and a new keynesian model subject to the zero lower bound on nominal interest rates compared with a high quality numerical solution the piecewise linear perturbation method can adequately capture key properties of the models we consider a key advantage of the piecewise linear perturbation method is its applicability to models with a large number of state variables

pricing european currency options a comparison of the modified black scholes model and a random variance model we use the modified black scholes model and a random variance option pricing model to study prices of european currency options traded in geneva the options which cannot be exercised early include calls and puts on the dollar swiss franc exchange rate in the empirical analysis we examine the model fit and the biases with respect to the strike price time to maturity and volatility there is some evidence of mispricing and there are small gains available by trading with the random variance model

initial margin policy and stochastic volatility in the crude oil futures market this article examines the relationship between the volatility of the crude oil futures market and changes in initial margin requirements to closely match changes in futures market volatility with the corresponding changes in margin requirements we infer the volatility of the futures market from the prices of crude oil futures options contracts using a mean reverting diffusion process for volatility we show that changes in margin policy do not affect subsequent market volatility

stochastic volatility option pricing this paper examines alternative methods for pricing options when the underlying security volatility is stochastic we show that when there is no correlation between innovations in security price and volatility the characteristic function of the average variance of the price process plays a pivotal role it may be used to simplify fourier option pricing techniques and to implement simple power series methods we compare these methods for the alternative mean reverting stochastic volatility models introduced by stein and stein 1991 and heston 1993 we also examine the biases in the black scholes model that are eliminated by allowing for stochastic volatility and we correct some errors in the stein and stein 1991 analysis of this issue empirical evidence on underlying asset prices and on their derivatives strongly suggests that asset price volatility is stochastic the pricing of options under this condition is therefore an important problem in this paper we study alternative option pricing methods that account for stochastic volatility we are particularly concerned with power series methods which we show to be quite accurate and easy to implement for alternative volatility specifications we point out their relation with recently proposed exact methods this permits a precise assessment of the approximation involved in the simple power series approach and of the impact of stochastic volatility on option prices following garman 1976 stochastic volatility option prices must satisfy a bivariate fundamental partial differential equation pde in the two state variables security price and volatility since volatility is not spanned by assets in the econ omy the volatility risk may not be eliminated by arbitrage methods therefore its market price explicitly enters into the pde the associated risk premium is owen graduate school of management vanderbilt university nashville tn 37203 and universita di siena facolta di scienza economiche e bancarie 53100 siena italy respectively part of this research was supported from a grant from the dean s fund and the financial markets research center at the owen school of management vanderbilt university some of this research was completed while roma was visiting the anderson graduate school of management ofthe university of california at los angeles we thank participants of the finance accounting and economics workshop at the owen school of management vanderbilt university for useful comments we appreciate the suggestions of roger huang craig lewis ron masulis and walter torous we thank joanne ball for editorial

stock price distributions with stochastic volatility an analytic approach we study the stock price distributions that arise when prices follow a diffusion process with a stochastically varying volatility parameter we use analytic techniques to derive an explicit closed form solution for the case where volatility is driven by an arithmetic ornstein ublenbeck or ar1 process we then apply our results to two related problems in the finance literature 1 options pricing in a world of stochastic volatility and 2 the relationship between stochastic volatility and the nature of fat tailes in stock price distributions article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

a synthetic stock flow consistent macroeconomic model of financialisation this article is centred around the notions of shareholder value orientation and financialisation shareholder value orientation is reflected by a high dividend payout ratio applied by firms and the reluctance of firms to finance physical investment via new equity issues financialisation is the more general development towards an increased importance of the financial sector of the economy relative to the non financial sector in this article a synthetic stock flow consistent model is developed that attempts to encompass some important recent works on the effects of financialisation this includes contributions from the fields of mainstream information economics and post keynesian economics we conduct simulations reflecting increased shareholder value orientation and show that the results are consistent with important stylised facts copyright the author 2008 published by oxford university press on behalf of the cambridge political economy society all rights reserved oxford university press

stagnation income distribution and monopoly power the deceleration in the rate of industrial growth in the indian economy since the middlesixties initially interpreted by some as a temporary downward deviation from trend hasnow come to be generally accepted as reflecting long run tendencies towards stagnation several explanations for these tendencies have been offered bhagwati and desai 1970 and bhagwati and srinivasan 1975 have focused on inefficiencies and the misallocationof resources arising from industrial policies pursued by the government others chakravarty 1974 raj 1976 and vaidyanathan 1974 among them have emphasisedthe sluggishness of agricultural growth which is alleged to have retarded industrial growthby limiting markets and the supply of wage goods and raw materials a third view reflectedin srinivasan and narayana 1977 for example has put the blame on a slackening of invest ment demand due to lower public investment but does not explain why public investmentfell or why its fall restrained industrial growth finally there is the explanation put forthin bagchi 1970 1975 1982 in nayyar 1978 and in parts of mitra 1977 that inequali ties in income distribution have resulted in a limited demand for industrial goods reducedincentives for investment and therefore reduced growth this view seems to suggest apositive relation between growth and income equality which is opposed to the generallyaccepted idea derived from cambridge growth models that higher growth requires greaterinequality the purpose of this paper is to examine the last explanation by considering the inter action between growth and income distribution in an underdeveloped economy with thehelp of a simple macroeconomic model the model is a stylisation of the indian economy so that we will be able to use the model to assess the argument that a deceleration in therate of growth of the indian industrial economy could have been caused by an unequaldistribution of income the argument will not be made that this income distributional con straint is the binding constraint on industrial growth the model will merely examine theinternal consistency of the argument that a bad income distribution could explain stagnation in the sense of reduced growth and show that in the indian context as in other similarcontexts this argument can be put forward in explaining stagnation our argument is first presented with a highly simplified schematisation of the indianeconomy which we shall call the basic model the economy modelled produces only one

earnings and consumption dynamics a nonlinear panel data framework we develop a new quantile based panel data framework to study the nature of income persistence and the transmission of income shocks to consumption log earnings are the sum of a general markovian persistent component and a transitory innovation the persistence of past shocks to earnings is allowed to vary according to the size and sign of the current shock consumption is modeled as an age dependent nonlinear function of assets unobservable tastes and the two earnings components we establish the nonparametric identification of the nonlinear earnings process and of the consumption policy rule exploiting the enhanced consumption and asset data in recent waves of the panel study of income dynamics we find that the earnings process features nonlinear persistence and conditional skewness we confirm these results using population register data from norway we then show that the impact of earnings shocks varies substantially across earnings histories and that this nonlinearity drives heterogeneous consumption responses the framework provides new empirical measures of partial insurance in which the transmission of income shocks to consumption varies systematically with assets the level of the shock and the history of past shocks

income inequality in the united states 1913 1998 this paper presents new homogeneous series on top shares of income and wages from 1913 to 1998 in the united states using individual tax returns data top income and wages shares display a u shaped pattern over the century our series suggest that the large shocks that capital owners experienced during the great depression and world war ii have had a permanent effect on top capital incomes we argue that steep progressive income and estate taxation may have prevented large fortunes from fully recovering from these shocks top wage shares were flat before world war ii dropped precipitously during the war and did not start to recover before the late 1960s but are now higher than before world war ii as a result the working rich have replaced the rentiers at the top of the income distribution

financialisation and capital accumulation in the non financial corporate sector a theoretical and empirical investigation on the us economy 1973 2003 recent research has explored the growing financialization process in the u s and other advanced economies the term is a catch all phrase used to denote important changes in the structure of non financial corporations balance sheets including the growth of income from financial subsidiaries and investment as well as growth in the transfer of earnings to financial markets in the forms of interest payments dividend payments and stock buybacks this paper seeks to empirically explore the relationship between financialization in the u s economy and real investment at the firm level using data from a sample of non financial corporations from 1973 to 2003 i find a negative relationship between real investment and financialization first increased financial investment and increased financial profit opportunities may have crowded out real investment by changing the incentives of firm managers and directing funds away from real investment second increased payments to the financial markets may have impeded real investment by decreasing available internal funds shortening the planning horizons of the firm management and increasing uncertainty these two channels can help explain the negative relationship i find between investment and financialization

relative wage movements and the distribution of consumption we analyze how relative wage movements among birth cohorts and education groups affected the distribution of household consumption and economic welfare our empirical work draws on the best available cross sectional data sets to construct synthetic panel data on u s consumption labor supply and wages during the 1980s we find that low frequency movements in the cohort education structure of pretax hourly wages among men drove large changes in the distribution of household consumption the results constitute a spectacular failure of between group consumption insurance a failure not explained by existing theories of informationally constrained optimal consumption behavior a welfare analysis indicates that the cost of between group consumption variability is larger than the cost of aggregate consumption variability by two orders of magnitude

a theory of the consumption function with and without liquidity constraints fifteen years ago milton friedman s 1957 treatise a theory of the consumption function seemed badly dated dynamic optimization theory had not been employed much in economics when friedman wrote and utility theory was still comparatively primitive so his statement of the permanent income hypothesis never actually specified a formal mathematical model of behavior derived explicitly from utility maximization instead friedman relied at crucial points on intuition and verbal descriptions of behavior although these descriptions sounded plausible when other economists subsequently found multiperiod maximizing models that could be solved explicitly the implications of those models differed sharply from friedman s intuitive description of his model furthermore empirical tests in the 1970s and 1980s often rejected these rigorous versions of the permanent income hypothesis in favor of an alternative hypothesis that many households simply spent all of their current income today with the benefit of a further round of mathematical and computational advances friedman s 1957 original analysis looks more prescient than primitive it turns out that when there is meaningful uncertainty in future labor income the optimal behavior of moderately impatient consumers is much better described by friedman s original statement of the permanent income hypothesis than by the later explicit maximizing versions furthermore in a remarkable irony much of the empirical evidence that rejected the permanent income hypothesis as specified in tests of the 1970s and 1980s is actually consistent both with friedman s original description of the model and with the new version with serious uncertainty there are four key differences between the explicit maximizing models

international money and stock market contingent claims abstract we develop a unified approach with closed form solutions for pricing bonds stocks currencies and their derivatives the specification assumes a fundamental risk factor represented by a stochastic positive definite matrix following a wishart autoregressive war process by assuming a volatility in mean specification for the domestic stock returns and the relative changes of exchange rates and a domestic stochastic discount factor exponential affine with respect to the fundamental risk it is possible to derive closed form solutions for the term structures of interest rates and for the risk neutral probabilities while keeping the flexibility of the model in particular i the domestic and foreign term structures are jointly affine and correspond to wishart quadratic term structures which can ensure the positivity of interest rates ii in this framework where the stock price follows a model with stochastic volatility we obtain explicit or quasi explicit formulas for futures and forward contracts swaps and options this extends results by heston 1993 and ball and roma 1994

saving and liquidity constraints this paper is concerned with the theory of saving when consumers are not permitted to borrow and with the ability of such a theory to account for some of the stylized facts of saving behavior the models presented in the paper seem to account for important aspects of reality that are not explained by traditional life cycle models copyright 1991 by the econometric society

are current accounts driven by competitiveness or asset prices a synthetic model and an empirical test this paper analyses the emergence of current account imbalances as a result of the co existence of trade flows and financial flows the literature has tended to view these factors in isolation many post kaleckian models as well as net saving approaches assume that financial flows will adjust to trade flows models focusing on financial crises feature a strong role for financial flows but ignore drivers of trade flows similarly empirical analyses either ignore drivers of financial flows or insufficiently capture determinants of trade flows the paper first proposes a simple macroeconomic framework of the current account which gives equal emphasis to trade flows determined by price competitiveness and financial flows determined by asset prices second we test a reduced form of the model for 28 oecd countries for the period 1971 2014 our results indicate that cost competitiveness as well as asset prices play a role in the determination of current accounts but asset prices have dominated in the last two decades

union contracts and the life cycle permanent income hypothesis this paper isolates households in the psid whose heads can be matched to particular long term union contracts with high confidence the author uses use published information on these contracts to construct a household specific measure of expected wage growth he finds that predictable wage movements are significantly correlated with consumption changes contrary to neoclassical consumption theory the author finds that consumption responds more strongly to predictable income declines than to predictable income increases this asymmetry is inconsistent with liquidity constraints and myopia but is qualitatively consistent with models in which preferences exhibit loss aversion copyright 1995 by american economic association

inequality household debt and financial instability an agent based perspective abstract our paper contributes to the literature on the causes of the 2007 2008 financial crisis in the united states by means of an agent based model we replicate an artificial credit network economy in order to assess the impact of growing income inequality in the presence of peer effects and home equity borrowing we show that the resulting debt financed consumption boom jeopardises the stability of the economic system thus paving the way for a financial crisis our model includes a behavioural rule for consumption based on expenditure cascades a hierarchical structure of household finance an articulated credit market with collateralised consumption loans and mortgages and a simple housing market results show that the model is able to capture the economic and social pressure of inequality on low and middle income households that pushes them to increase their consumption via home equity extraction rising non performing loans lead to higher bad debt on the banks balance sheets and consequently to the emergence of a crisis as an endogenous dynamic

macroeconomic implications of financialisation a growing literature suggests that financialisation may weaken the performance of non financial corporations and constrain the growth of aggregate demand this paper uses two alternative approaches one derived from skott and one from lavoie and godley and two different settings a labour constrained setting and a dual economy setting to evaluate some of the claims that have been made our analysis which pays explicit attention to financial stock flow relations suggests that the qualitative effects of financialisation are insensitive to the precise specification of household saving behaviour but depend critically on the labour market assumptions labour constrained versus dual and the specification of the investment function harrodian versus kaleckian

functional income distribution and aggregate demand in the euro area an increase in the wage share has contradictory effects on the subaggregates of aggregate demand private consumption expenditures ought to increase because wage incomes typically are associated with higher consumption propensities than capital incomes investment expenditures ought to be negatively affected because investment will positively depend on profits net exports will be negatively affected because an increase in the wage share corresponds to an increase in unit labour costs and thus a loss in competitiveness therefore theoretically aggregate demand can be either wage led or profit led depending on how these effects add up the results will crucially depend on how open the economy is internationally the paper estimates a post kaleckian macro model incorporating these effects for the euro area and finds that the euro area is presently in a wage led demand regime implications for wage policies are discussed

ambiguous information permanent income and consumption fluctuations abstract this paper studies asymmetric responses in consumption where the asymmetries are endogenously generated by agents preferences and incomplete knowledge about information quality agents form expectations about the future based on incomplete information which is assumed to be ambiguous and these future expectations distorted by ambiguity affect spending asymmetrically with a noisy signal of uncertain quality consumption features asymmetric responses the absolute size of the responses depends on whether the signal delivers good or bad news i estimate the model on the data for g7 countries by maximum likelihood and the estimation results suggest that the ambiguity mechanism plays a modest role in driving observed skewness in the data

inequality the great recession and slow recovery rising inequality reduced income growth for the bottom 95 percent of the income distribution beginning about 1980 but that group s consumption growth did not fall proportionally instead lower saving led to increasing balance sheet fragility for the bottom 95 percent eventually triggering the great recession we decompose consumption and saving across income groups the consumptionincome ratio of the bottom 95 percent fell sharply in the recession consistent with tighter borrowing constraints the top 5 percent ratio rose consistent with consumption smoothing the inability of the bottom 95 percent to generate adequate demand helps explain the slow recovery

a stagnationist model of economic growth in an economy subject to persistent excess capacity demand related factors will play a key role in determining patterns of secular change this thesis has a long history in econ omics sometimes in the underworld and occasionally at the height of fashion as recounted by rowthorn 1982 recent manifestations in the first world are the theories of monopoly capitalism of baran and sweezy 1966 and steindl 1952 who in turn follow kalecki 1971 hobson 1902 luxemburg 1951 and the marx of realisation crises and reproduction schemes in volume ii of capital other radicals such as boddy and crotty 1975 add a profit squeeze explanation of the cycle which underlays the dynamics of the growth model specified here in developing countries difficulties in both realisation and sectoral proportions are emphasised as obstacles to growth witness lustig s 1980 review of latin american structuralist theory and dutt s 1984 model which formalises an ongoing controversy in india about how income redistribution might affect prospects for industrialisation all these authors are stagnationist in assuming that both the growth rate and the level of capacity utilisation can be different under different conditions of income distribution and or macroeconomic policy their preferred policies will presumably lead to greater equality increase utilisation or step up growth they typically ask two analytical ques tions how does output respond in the short run to shifts in the income distribution how do output adjustments feed back into distributional dynamics especially under conditions when price and wage inflation rates may be influenced by employment levels productivity changes and conflicting income claims in what follows we set out a simple model to address these questions and explore the implications for macroeconomic policy of the answers that arise since the approach is not familiar to economists with a standard training a verbal description of the growth model is given first those who wish to jump directly into a formal presentation can proceed to section 1 output x is assumed to meet demand in an instantaneous short run we measure activity as the ratio of firms net cash inflow to the value of capital stock i e the rate of profit r during the short run the price level p is fixed by a mark up rule p 1 x wb where r is the mark up rate w the money wage and b the labor output ratio with this rule the share of profits or mark up income in the value of output is r l t let u stand for the output capital ratio or capacity utilization xik by simple identity

how does future income affect current consumption this paper tests a straightforward implication of the basic life cycle model of consumption that current consumption depends on expected lifetime income the paper projects future income for a panel of households and finds that consumption is closely related to projected current income but unrelated to predictable changes in income however future income uncertainty has an important effect consumers facing greater income uncertainty consume less the results are consistent with buffer stock models of consumption like those of deaton 1991 or carroll 1992a 1992b where precautionary motives greatly reduce the willingness of prudent consumers to consume out of uncertain future income

option pricing when the variance is changing the monte carlo method is used to solve for the price of a call when the variance is changing stochastically

a theory of the nominal term structure of interest rates a model of the nominal term structure of interest rates is developed that has a positive and stationary process for the interest rate and delivers closed form expressions for the prices of discount bonds and european options on bonds unlike the one state variable version of the cox ingersoll and ross 1985 model this model even in its one state variable version allows the term premium to change sign as a function of the state and the term to maturity and also allows for shapes of the yield curve that are observed in the u s data but that are disallowed in the cox ingersoll and ross model article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

american options under stochastic volatility the problem of pricing an american option written on an underlying asset with constant price volatility has been studied extensively in literature real world data however demonstrate that volatility is not constant and stochastic volatility models are used to account for dynamic volatility changes option pricing methods that have been developed in literature for pricing under stochastic volatility focus mostly on european options we consider the problem of pricing american options under stochastic volatility which has had relatively much less attention from literature first we develop a transformation procedure to compute the optimal exercise policy and option price and provide theoretical guarantees for convergence second using this computational tool we explore a variety of questions that seek insights into the dependence of option prices exercise policies and implied volatilities on the market price of volatility risk and correlation between the asset and stochastic volatility the speed and accuracy of the procedure are compared against existing methods as well

too bright for comfort a kaleckian view of profit realisation in the usa 1964 2009 this paper uses modern gross national product accounting conventions to chart the various expenditures responsible for profit realisation from 1964 to 2009 in the usa revealed are significant changes in the main drivers of profit realisation after 1982 specifically the shifting distribution of income away from median workers and the use of debt are increasingly responsible for profit realisation after 1982 this represents a significant aspect of the economy that set the environment for the recent crisis and has implications for a post crisis economy as well

do liquidity constraints and interest rates matter for consumer behavior evidence from credit card data this paper utilizes a unique new dataset of credit card accounts to analyze how people respond to changes in credit supply the data consist of a panel of thousands of individual credit card accounts from several different card issuers with associated credit bureau data we estimate both marginal propensities to consume mpcs out of liquidity and interest rate elasticities we also evaluate the ability of different models of consumption to rationalize our results distinguishing the permanent income hypothesis pih liquidity constraints precautionary saving and behavioral models we find that increases in credit limits generate an immediate and significant rise in debt counter to the pih the average mpc out of liquidity ddebt dlimit ranges between 10 14 the mpc is much larger for people starting near their limits consistent with binding liquidity constraints however the mpc is significant even for people starting well below their limit we show this response is consistent with buffer stock models of precautionary saving nonetheless there are other results that conventional models cannot easily explain e g why so many people are borrowing on their credit cards and simultaneously holding low yielding assets unlike most other studies we also find strong effects from changes in account specific interest rates the long run elasticity of debt to the interest rate is approximately 1 3 less than half of this elasticity represents balance shifting across cards with most reflecting net changes in total borrowing the elasticity is larger for decreases in interest rates than for increases which can explain the widespread use of temporary promotional rates the elasticity is smaller for people starting near their credit limits again consistent with liquidity constraints

distribution and growth reconsidered empirical results for six oecd countries we analyse the relationship between functional income distribution and economic growth in austria france germany the netherlands the uk and the usa from 1960 until 2005 the analysis is based on a demand driven distribution and growth model for an open economy inspired by bhaduri and marglin which allows for either profit or wage led growth we find that growth in france germany the uk and the usa has been wage led whereas austria and the netherlands have been profit led in the case of austria a domestically wage led economy changes to profit led when including the effect of distribution on external trade the netherlands however are already profit led without external trade our results so far only partially confirm bhaduri and marglin s theoretical conclusion that wage led growth becomes less feasible when the effects of distribution on foreign trade are taken into account

wage led growth in the eu15 member states the effects of income distribution on growth investment trade balance and inflation this paper estimates a multi country demand led growth model for eu15 countries a decrease in the share of wages in national income in isolation leads to lower growth in finland france germany greece italy luxembourg netherlands portugal spain sweden and the united kingdom whereas it stimulates growth in austria belgium denmark and ireland however a simultaneous decline in the wage share leads to an overall decline in eu15 gdp hence eu15 as a whole is a wage led economy furthermore austria and ireland also experience negative effects on growth when they decrease their wage share along with their trading partners the results indicate that a decline in the wage share has had significant negative effects on growth in the eu15 countries and supports the case of wage coordination we present different wage led recovery scenarios taking into account further effects of a change in the wage share on prices nominal unit labour costs investment and net exports

stochastic volatility movements in short term interest rates and bond option values abstract two classes of models for pricing interest rate contingent claims are compared the first contains standard single factor models while the second includes stochastic volatility variants of these it is demonstrated that incorporating stochastic volatility significantly improves the ability of the models to fit movements in short term interest rates the fundamental reason for this is that standard univariate models do not generate enough conditional heteroskedasticity the models are also compared on the basis of bond option prices when each is constrained to fit a particular yield curve the results suggest that stochastic volatility models will typically produce lower option values than corresponding single factor models particularly for near the money to deep out of the money options this is because estimated historical volatilities are significantly lower under stochastic volatility when single factor models are constrained to the same level of volatility as implied by stochastic volatility models in most cases the pricing differences become minor

the sensitivity of consumption to transitory income estimates from panel data on households we investigate the stochastic relation between income and consumption specifically consumption of food within a panel of about 2 000 households our major findings are 1 consumption responds much more strongly to permanent than to transitory movements of income 2 the response to transitory income is nonetheless clearly positive 3 a simple test independent of our model of consumption rejects a central implication of the pure life cycle permanent income hypothesis the observed covariation of income and consumption is compatible with pure life cycle permanent income behavior on the part of80 percent of families and simple proportionality of consumption and income among the remaining 20 percent as a general matter our findings support the view that families respond differently to different sources of income variations in particular temporary income tax policies have smaller effects on consumption than do other more permanent changes in income of the same magnitude this abstract was borrowed from another version of this item

determinants of labour s income share in the era of financialisation numerous studies have analysed the decline in the labour share of income but only few have linked it to the increase in financialisation the process of financialisation can roughly be described as an increasing importance of the financial sector that had an impact on the distribution between wages and profits on the one hand and retained earnings and financial income in the form of dividends and interests on the other hand this article seeks to explore the relationship between financialisation and labour s share of income using a time series cross sectional dataset of 13 countries over the time period from 1986 until 2007 the results suggest that there is indeed a relationship between increasing dividend and interest payments of non financial corporations and the decline of the share of wages in national income other factors that can account for the decline relate to globalisation and a decrease in the bargaining power of labour

the effects of financialization on investment evidence from firm level data for the uk this paper estimates the effects of financialization on physical investment in the uk using panel data based on balance sheets of publicly listed non financial companies supplied by worldscope for the period 1985 2013 we find robust evidence of an adverse effect of not only financial payments interests and dividends but also financial incomes on the rate of accumulation the negative impacts of financial incomes from interests and dividends are particularly strong for the pre crisis period our findings support the financialization thesis that the increasing orientation of the non financial sector towards financial activities is ultimately leading to lower physical investment hence to stagnant or fragile growth as well as long term concerns for productivity

the spending and debt response to minimum wage hikes abstract immediately following a minimum wage hike household income rises on average by about 250 per quarter and spending by roughly 700 per quarter for households with minimum wage workers most of the spending response is caused by a small number of households who purchase vehicles furthermore we find that the high spending levels are financed through increases in collateralized debt our results are consistent with a model where households can borrow against durables and face costs of adjusting their durables stock jel d12 d14 d91 j38

consumption puzzles and precautionary savings abstract when marginal utility is convex agents accumulate savings as a precautionary measure against labor income eventualities this paper shows that precautionary savings can go a long way in making the excess growth excess smoothness and excess sensitivity features of consumption consistent with the stochastic processes of labor income observed in the u s at the microeconomic level

the financialisation offshoring nexus and the capital accumulation of us non financial firms the financialisation of the nonfinancial corporation has drawn the attention of many scholars who have identified two channels by which financialisation happens a higher proportion of financial assets compared to nonfinancial ones and a higher amount of resources distributed to financial markets one of the consequences of this is the decrease in investment parallel to financialisation many nonfinancial corporations have also engaged in an internationalization of their productive activities organizing them under global value chains surprisingly the intersections between the literature on financialisation and the literature on global value chain are still underdeveloped although for example offshoring may also explain the decrease in investment of nonfinancial firms this paper fills this gap using panel regressions for u s nonfinancial corporations between 1995 and 2011 we find evidence that both offshoring and financialisation are determinants to the decrease in investment and that financialisation occurs mainly for firms belonging to high offshoring sectors la financiarisation des societes non financieres a attire l attention de nombreux chercheurs qui ont identifie deux canaux par lesquels elle se produit les bilans des societes sont composes d une plus grande proportion d actifs financiers relativement aux actifs non financiers et une plus grande part des ressources est redistribuee vers les marches financiers l une des consequences qui en resulte est la baisse de l investissement parallelement a ce mouvement de financiarisation beaucoup de societes non financieres ont developpe l internationalisation de leur production en l organisant selon des chaines globales de valeur il est surprenant de constater que les liens entre la litterature sur la financiarisation et celle sur les chaines globales de valeur soit peu developpee bien que par exemple le transfert de la production a l etranger puisse aussi expliquer la baisse de l investissement des firmes non financieres cet article vise a combler cette lacune en menant des regressions sur un panel de firmes americaines entre 1995 et 2011 nous montrons que tant le transfert de production a l etranger que la financiarisation sont des determinants de la baisse de l investissement nous montrons egalement que la financiarisation touche surtout les firmes appartenant a des secteurs fortement inserees dans les chaines globales de valeur

financialisation and tendencies towards stagnation the role of macroeconomic regime changes in the course of and after the financial and economic crisis 2007 09

internal devaluation in a wage led economy the case of spain the aim of this paper is to use the theoretical distinction between wage led and profit led economies to consider the impact of internal devaluation policy on gdp growth for the case of spain we assess to what extent wage devaluation in spain has proven useful vis a vis triggering an exportled strategy boosting aggregate demand and overcoming the crisis for said purpose we estimate a bhaduri marglin model drawing on quarterly data from eurostat and we expand the traditional model to take into account the effect of private debt on consumption and investment our main conclusion is that the spanish economy can be characterized as a wage led economy and that therefore a wage share decrease proves counterproductive to growth according to our calculations internal devaluation policy detracted an average of 0 3 percentage points of annual economic growth during the period 2010 2016

the effects of income distribution and fiscal policy on aggregate demand investment and the budget balance the case of europe this paper develops a multi country post kaleckian model that incorporates the role of the government one key novelty of the model is that it integrates cross country effects of both changes in income distribution and fiscal policy the model is used to estimate econometrically the effects of income distribution and fiscal policy on the components of aggregate demand and the budget balance in eu15 countries the results show that a simultaneous increase in the wage share in all eu15 countries would increase demand and the primary budget balance in all countries a simultaneous increase in government spending turns out to boost economic activity in all the eu15 countries indicating the positive economic effects of expansionary fiscal policy moreover a progressive tax policy that would be implemented simultaneously at the eu level would lead to an increase in output in all countries

towards an accounting view on money banking and the macroeconomy history empirics theory in this paper three views are considered which are traditionally associated with money cranks and brave heretics the first is that the credit nature of money has macroeconomic significance the second is that financial development can be bad for economic growth the third is that macroeconomic models need to be explicitly monetary macroeconomic models it is argued that in each of these three areas there has been a recent shift in mainstream economic opinion this suggests new opportunities for meaningful debate between heterodox and orthodox schools on money and finance it is further argued following skaggs 2003 that a common meeting ground could be an accounting view of economics this is a mode of macroeconomic analysis which explicitly uses accounting definitions identities that credit is also debt or that flows of a variable affect the stock of that variable or accounting methods e g decomposing different kinds of liabilities or linking flows of liquidity to flows of transactions to structure and direct the analysis the accounting view is highly pluralist yet clearly defined i discuss its applications to each of the three views

option values under stochastic volatility theory and empirical estimates abstract this paper numerically solves the call option valuation problem given a fairly general continuous stochastic process for return volatility statistical estimators for volatility process parameters are derived and parameter estimates are calculated for several individual stocks and indices the resulting estimated option values do not differ dramatically from black scholes values in most cases although there is some evidence that for longer maturity index options black scholes overvalues out of the money calls in relation to in the money calls

the consumption response to positive and negative income shocks abstract a set of newly added questions in the 2011 2014 bank of england nmg consulting survey reveals that british households tend to change their consumption by significantly more in reaction to temporary and unanticipated falls in income than to rises of the same size household balance sheet characteristics such as high debt to income ratios and small liquidity buffers concerns about credit market access and higher subjective risk of lower future income account for a sizable share of this spending asymmetry our findings have important implications for predicting the response of aggregate consumption to expansionary and contractionary macroeconomic policies

the creation and resolution of market uncertainty the impact of information releases on implied volatility we model and examine the impact of information releases on market uncertainty as mea sured by the implied standard deviation isd from option markets distinguishing between scheduled and unscheduled announcements we hypothesize that since the timing although not the content of scheduled announcements is known a priori the pre release isd will impound the anticipated impact of important releases on price volatility and that the isd will normally decline post release as this uncertainty is resolved conversely we hypothesize that the unexpected high volatility caused by major unscheduled releases will cause market participants to adjust upward their estimates of likely volatility over the remaining life of the option resulting in an increase in the isd our evidence supports both hypotheses the isds that we consider are from the t bond eurodollar and deutschemark options markets we examine scheduled macroeconomic news releases such as the employment report and the ppi we also find that the observed tendency for the isd to fall on fridays and rise on mondays is due to the weekday pattern of scheduled news releases

unemployment and the real wage the economic basis for contesting political ideologies using the keynesian theory of effective demand this paper demonstrates how particular models such as that of cooperative capitalism enunciated by the left keynesian social democrats the marxian model of profit squeeze emphasizing distributive conflict and even the conservative model relying on supply side stimulus fit in as particular variants of a more general theoretical scheme through a reconstruction of the familiar is schedule the argument is weaved around the theme of the relations between unemployment and real wage in the context of both a closed and an open economy to explain the common macroeconomic basis of contesting ideologies copyright 1990 by oxford university press

financialisation and the slowdown of accumulation over the past decades financial investment of non financial businesses has been rising and accumulation of capital goods has been declining the first part of the paper offers a novel theory to explain this phenomenon financialization the shareholder revolution and the development of a market for corporate control have shifted power to shareholders and thus changed management priorities leading to a reduction in the desired growth rate in the second part the link between accumulation and financialization is tested econometrically by means of a time series analysis of aggregate business investment for usa uk france and germany extensive test of robustness are performed for the first three countries evidence that confirms the negative effect of financialization on accumulation is found author s abstract

derivative pricing with wishart multivariate stochastic volatility this paper deals with the pricing of derivatives written on several underlying assets or factors satisfying a multivariate model with wishart stochastic volatility matrix this multivariate stochastic volatility model leads to a closed form solution for the conditional laplace transform and quasi explicit solutions for derivative prices written on more than one asset or underlying factor two examples are presented i a multiasset extension of the stochastic volatility model introduced by heston 1993 and ii a model for credit risk analysis that extends the model of merton 1974 to a framework with stochastic firm liability stochastic volatility and several firms a bivariate version of the stochastic volatility model is estimated using stock prices and moment conditions derived from the joint unconditional laplace transform of the stock returns

margin adequacy and standards an analysis of the crude oil futures market this article proposes two value based standards for setting the initial margin requirements on futures positions based on the observation that the distributions of the payoffs to futures traders and the potential losses to the futures clearinghouse can be described in terms of the payoffs to barrier options using both margin standards we examine the adequacy of initial margin requirements in the crude oil futures market our results suggest that on average the initial margin requirements set by the new york mercantile exchange exceed the minimum margins required under our option based standards for adequacy

debt driven growth wealth distribution and demand in oecd countries the paper investigates the effects of changes in the distribution of income and in wealth on aggregate demand and its components we extend the bhaduri and marglin 1990 model to include personal income inequality as well as asset prices and debt this allows for an evaluation of the wage or profit led nature of demand regimes of the expenditure cascade argument frank et al 2010 and several hypotheses regarding the effects of wealth and debt our estimates are based on a panel of 18 oecd countries covering the period 1980 2013 for the full panel the average demand regime is found to be wage led we fail to find effects of personal inequality but do find strong effects of debt and property prices which have been the major drivers of aggregate demand in the decade prior to the 2007 crisis

what do we know about investment under uncertainty recent theoretical developments relating to investment under uncertainty have highlighted the importance of irreversibility for the timing of investment expenditures and their expected returns this has subsequently stimulated a growing empirical literature which examines uncertainty and threshold effects on investment behaviour this paper presents a review of this literature a variety of methods have been used to investigate the empirical implication of irreversibility in investment the majority focusing on the relationship between investment flows and proxy measures of uncertainty a general conclusion is that increased uncertainty at both aggregate and disaggregate levels leads to lower investment rates this suggests that there is an irreversibility effect under which greater uncertainty raises the value of the call option to delay a commitment to investment this effect appears to dominate any positive impact on investment arising from the fact that greater uncertability under certain circumstances increases the marginal profitability of capital the methods used raise a number of issues which call into question the reliability of the findings and these are addressed in the paper however if such irreversibility effects are present then their omission from traditional investment models casts doubt on the efficacy of such specifications jel classification d81 d92 e22