social security life insurance and annuities for families abstract in this paper we ask whether an aspect of social security namely its role as a provider of insurance against uncertain life spans is welfare enhancing to this end we use an olg model where agents have a bequest motive and differ in sex and marital status and where families are formed and destroyed and their characteristics evolve exogenously according to u s demographic patterns of marriage divorce fertility and mortality we compare the implications of social security under a variety of market structures that differ in the extent to which life insurance and annuities are available we find that social security is a bad idea in economies where the private sector provides annuities and life insurance it is a bad idea for the standard reason that it distorts the intertemporal margin by lowering the capital stock in the absence of such securities social security is still a very bad idea only marginally less so compared with economies with annuities and life insurance we also explore these issues in a world where people live longer and we find no differences in our answers as a by product of our analysis we find that the existence of life insurance opportunities for people is important in welfare terms while that of annuities is not

selection effects in the united kingdom individual annuities market this paper explores adverse selection in the voluntary and compulsory individual annuity markets in the united kingdom two empirical regularities support standard models of adverse selection first annuitants are longer lived than non annuitants these mortality differences are more pronounced in the voluntary than in the compulsory annuity market we estimate that the amount of adverse selection in the compulsory market is about one half of that in the voluntary market second the pricing of different types of annuity products within each annuity market is consistent with individuals selecting products based in part on private information about their mortality prospects the aging of populations in many developed nations has generated substantial interest in the way households finance consumption in their retirement years annuities insurance products that provide a payment stream for as long as the insured individual is alive offer one way to spread an accumulated stock of resources over a retirement period of uncertain length theoretical research beginning with yaari 1965 suggests substantial utility gains from annuitisation in the presence of stochastic length of life public policy discussions have also generated substantial current interest in the operation of annuity markets the decline in long term interest rates in the united kingdom since the early 1990s has coincided with a decline in annuity payouts relative to annuity premia this has sparked a debate

survival ambiguity and welfare abstract nearly all life cycle models adopt yaari s 1965 assumption that individuals know the survival probabilities that they face given that an individual s exact survival probabilities are likely unknown we explore the implications of relaxing this assumption if there is no annuity market then the welfare cost of survival ambiguity is large and regressive ambiguity neutral individuals would pay as much as 1 of total lifetime consumption for immediate resolution of ambiguity and the bottom income quintile is 4 times worse off than the top quintile alternatively with the availability of competitive annuity contracts survival ambiguity is welfare improving because it allows competitive insurance companies to pool risk across survival types even though social security and annuities share some properties social security does not help to hedge survival ambiguity

women on welfare a macroeconomic analysis look at the dramatic change in family structure that has occurred recently illustrated in figure 1 in the united states 23 percent of children lived with an unwed mother in 1998 compared with only 8 percent in 1960 1 of this 15 percentage point increase about 6 percentage points are due to a rise in the rate of divorce the remaining 9 percentage points arise from an increase in out of wedlock births why care about this change in the structure of families the lot of children living with a single mother is bleak about 70 percent of those children in a family with a never married mother were living near or below the poverty level in 1995 the corresponding figure for children being raised by a divorced mother was 45 percent associated with the increase in number of single mothers has been a rise in the percentage of the population on welfare in 1960 only 1 7 percent of the population was on afdc aid to families with dependent children while in 1995 about 5 2 percent were most mothers who received afdc were single 71 percent were in 1993 also afdc mothers tended to have more children 2 6 on average vs 2 1 for the population as a whole in 1993 it is interesting to note that there is evidence suggesting that more entrances into and exits out of welfare are connected with a shift in family structure rather than with a change in employment status for instance of the first time entrances into welfare during 1983 1991 about 21 percent were associated with an out of wedlock birth 23 percent were connected with a divorce or separation and 21 percent were linked with a reduction in the mother s work hours last real afdc benefits rose by about 70 percent between 1945 and 1977 they were about 25 percent higher in 1995 than in 1945 could this have contributed to the rise in single motherhood the task here is to outline a general equilibrium model in which at any point in time some individuals will marry others will divorce and yet others will choose to have out of wedlock births while the model is still prototypical in nature it will be shown how such a framework can be used to address public policy questions in particular the impact of welfare on family structure and the well being of the economy

determinants of banks risk exposure to new account fraud evidence from germany abstract this paper studies empirically the determinants of new account fraud risk within two dimensions the probability of fraud and the expected and unexpected monetary loss per account due to fraud by fraud risk we mean the risk that a bank fails to enforce a debt because the identity of the person incurring the debt cannot be ascertained using a unique and rich data set of account applicants provided by a german internet only bank we find that fraud risk is highly sensitive to demographic and socio economic variables like nationality gender marital status age occupation and urbanisation for example foreigners are 22 25 times more likely to commit account fraud than germans and men are 2 5 times more risky than women

a comparative analysis of reference price models the effect of reference price on brand choice decisions has been well documented in the literature researchers however have differed in their conceptualizations and therefore in their modeling of reference price in this article we evaluate five alternative models of reference price of which two are stimulus based i e based on information available at the point of purchase and three that are memory based i e based on price history and or other contextual factors we calibrate the models using scanner panel data for peanut butter liquid detergent ground coffee and tissue to account for heterogeneity in model parameters we employ a latent class approach and select the best segmentation scheme for each model the best model of reference price is then selected on the basis of fit and prediction as well as on the basis of parsimony in cases where the fits of the models are not very different in all four categories we find that the best reference price model is a memory based model namely one that is based on the brand s own price history in the liquid detergent category however we find that one of the stimulus based models namely the current price of a previously chosen brand also performs fairly well we discuss the implications of these findings

the effects of health insurance and self insurance on retirement behavior this paper provides an empirical analysis of the effects of employer provided health insurance medicare and social security on retirement behavior using data from the health and retirement study we estimate a dynamic programming model of retirement that accounts for both saving and uncertain medical expenses our results suggest that medicare is important for understanding retirement behavior and that uncertainty and saving are both important for understanding the labor supply responses to medicare half the value placed by a typical worker on his employer provided health insurance is the value of reduced medical expense risk raising the medicare eligibility age from 65 to 67 leads individuals to work an additional 0 074 years over ages 60 69 in comparison eliminating 2 years worth of social security benefits increases years of work by 0 076 years

a life cycle model of unemployment and disability insurance abstract a general equilibrium life cycle model is developed in which individuals choose a sequence of saving and labor supply faced with search frictions and uncertainty in longevity health status and medical expenditures unemployed individuals decide whether to apply for disability insurance di benefits if eligible we investigate the effects of cash transfer and in kind medicare component of the di system on the life cycle employment without medicare benefits di coverage could fall significantly we also study how di interacts with reforms of social security and medicare and find that di enrollment amplifies the effects of reforms

the effects of collecting income taxes on social security benefits abstract since 1983 social security benefits have been subject to income taxation a provision that can significantly increase the marginal income tax rate for older individuals to assess the impact of this tax we construct and calibrate a detailed life cycle model of labor supply saving and social security claiming we find that in a long run stationary environment replacing the taxation of social security benefits with a revenue equivalent change in the payroll tax would increase labor supply consumption and welfare from an ex ante perspective an equally desirable reform would be to make the portion of benefits subject to income taxes completely independent of other income

economic analysis of social security survivors insurance this paper develops a heterogeneous agents model to analyze the effects of social security survivors insurance the model features a negative mortality income gradient asymmetric information of individual mortality rates and a warm glow bequest motive that varies by age and family structure the model matches lifecycle changes in life insurance coverage and generates advantageous selection in the insurance market for male agents reducing survivors benefits for dependent children generates welfare losses while reducing survivors benefits for aged spouses produces welfare gains the opposing welfare results are explained by differences in the timing of benefits and in the funding cost

the life insurance market asymmetric information revisited abstract this paper finds evidence for the presence of asymmetric information in the life insurance market a conclusion contrasting with the existing literature in particular we find a significant and positive correlation between the decision to purchase life insurance and subsequent mortality conditional on risk classification individuals who died within a 12 year time window after a base year were 19 more likely to have taken up life insurance in that base year than were those who survived the time window moreover as might be expected when individuals have residual private information we find that the earlier an individual died the more likely she was to have initially bought insurance the primary factor driving the difference between our and the prior literature s findings is that we focus on a sample of potential new buyers rather than on the entire cross section to address the sample selection problem induced by potential mortality differences between those with and those without coverage

incidental bequests and the choice to self insure late life risks despite facing significant uncertainty about their lifespans and health care costs most retirees do not buy annuities or long term care insurance in this paper i find that retirees saving and insurance choices are highly inconsistent with standard life cycle models in which people care only about their own consumption but match well models in which bequests are luxury goods bequest motives tend to reduce the value of insurance by reducing the opportunity cost of precautionary saving the results suggest that bequest motives significantly increase saving and significantly decrease purchases of long term care insurance and annuities

social security and two earner households in the past decades elimination of the pay as you go system in u s has been extensively discussed and studied such an elimination would also eliminate the intra cohort redistribution done by the following policies of social security due to spousal and survivor s beneflt provisions the system redistributes mostly to single earner married households not necessarily progressive retirement beneflts are a concave function of past mean earnings hence the system redistributes from high earners to low earners finally the existence of a cap on social security taxable earnings makes the system regressive this is the flrst paper that quantifles redistributive labor supply and welfare implications of these policies using a general equilibrium life cycle model agents start out as permanently married or single and with education levels and wage proflles where the latter depend both on education and gender the household is the decision maker and decides on the labor supply of its member s and saving the aggregate production function has as inputs capital and labor aggregated by e ciency elimination of these policies results in a 6 1 increase in married female labor force participation rate the middle income single earner married households experience the largest welfare losses whereas the high income two earner households together with high income single households experience the largest welfare gains

dynamic pricing with loss averse consumers and peak end anchoring we study the dynamic pricing implications of a new behaviorally motivated reference price mechanism based on the peak end memory mode this model suggests that consumers anchor on a reference price that is a weighted average of the lowest and most recent prices loss averse consumers are more sensitive to perceived losses than gains relative to this reference price we find that a range of constant pricing policies is optimal for the corresponding dynamic pricing problem this range is wider the more consumers anchor on lowest prices and it persists when buyers are loss neutral in contrast with previous literature in a transient regime the optimal pricing policy is monotone and converges to a steady state price which is lower the more extreme and salient the low price anchor is our results suggest that behavioral regularities such as peak end anchoring and loss aversion limit the benefits of varying prices and caution that the adverse effects of deep discounts on the firm s optimal prices and profits might be more enduring than previous models predict

dormancy risk and expected profits of consumer loans abstract a bank that lends money to a household faces two types of risk frequently mentioned is the risk of default seldom referred to is the risk of an early redemption of the loan leading to dormancy in this paper we model the transition of consumer loans from an active to a dormant state to this end we use data on 4786 individuals who were granted credit by a swedish lending institution between september 1993 and august 1995 and estimate a semi parametric duration model we analyze the factors that determine the time to maturity on consumer loans and investigate the ability of the model to match the maturities observed in the data moreover we derive the distribution of conditional expected durations of loans and show how a loan application can be evaluated by calculating its expected profit

am i getting a good deal reference dependentdecision making when the reference price is uncertain models of consumer decision making commonly incorporate reference dependent preferences in these models the reference point is typically assumed to be known by the consumer however research on price recall and the reference formation process reveals that the reference price is often uncertain at the time of purchase reference price uncertainty creates ambiguity for the consumer about whether they are getting a good or bad deal this paper develops a model of consumer choice in the presence of reference dependent preferences when the reference price is uncertain data from two empirical studies that vary the product category and order of the elicitation of reference prices show that the new model generally outperforms conventional discrete choice models that either ignore reference prices or treat reference prices as certain the new model provides insights into the effect of reducing reference price uncertainty on consumer choice and reveals that high uncertainty smoothes the kink in the demand curve that is present in traditional reference price demand models

the choice to cash out pension rights at job change or retirement abstract most pension plans allow a lump sum distribution upon job separation enabling a subsequent cash out in the 1992 2000 hrs 13 of entitlements were cashed out representing 5 3 of entitlement dollars among plans with a lump sum option 20 were cashed out cash outs can be rational and we broadly confirm hypotheses for cash out determinants but not that individuals with short expected longevity should wish to disproportionately cash out fears of adverse selection into the pool of pensioners with annuity income thus appear unfounded while we find only limited leakage it is concentrated among individuals vulnerable to poverty in old age

overcoming information asymmetries in low income lending lessons from the working wheels program without access to transportation the welfare to work transition is nearly impossible yet little is known about the effectiveness of programs designed to improve credit access since 1998 vermont s tanf funds have provided automobile loans through the working wheels program we use microlevel data from this program to explore how to cost effectively provide loans to clients who cannot obtain affordable loans elsewhere our results verify the importance of relationship lending particularly among those without documented credit histories in the presence of information asymmetries about credit history our results justify the increased trust placed in clients with whom the bank has a stronger relationship such clients ceteris paribus are less likely to default we conclude that in the current climate of welfare reform policymakers should consider programs that encourage welfare recipients to establish and maintain relationships with financial institutions in order to facilitate access to credit and minimize the risk of default

contextual influences on perceptions of merchant supplied reference prices two contextual variables that have theoretical roots in information processing attribution and social judgment theories were manipulated along with three levels of merchant supplied reference price in a 2 2 3 analysis of variance design results support the hypothesized effects of consistency and distinctiveness as contextual variables that influence internal price standards and purchase evaluations the three price levels resulted in a curvilinear pattern of results for the purchase evaluation and source credibility dependent variables as hypothesized however contrary to assimilation contrast theory the impact of the merchant supplied reference price on estimates of normal and fair prices was monotonic

designing optimal disability insurance a case for asset testing we analyze an implementation of an optimal disability insurance system as a competitive equilibrium with taxes an optimum is implemented by an asset tested disability system in which a disability transfer is paid only if an agent has assets below a specified maximum the logic behind this result is that an agent who plans to falsely claim disability a finds doing so unattractive if he does not adjust his savings and b cannot collect disability insurance if he does adjust his savings in the desired direction upward for a calibrated economy we find that welfare gains from asset testing are significant

evaluation of the subjective probabilities of survival in the health and retirement study in the health and retirement study respondents were asked about the chances they would live to 75 or to 85 we analyze these responses to determine if they behave like probabilities of survival if their averages are close to average probabilities in the population and if they have correlations with other variables that are similar to correlations with actual mortality outcomes we find that generally they do behave like probabilities and that they do aggregate to population probabilities most remarkable however is that they covary with other variables in the same way actual outcomes vary with the variables for example respondents with higher socioeconomic status give higher probabilities of survival whereas respondents who smoke give lower probabilities we conclude that these measures of subjective probabilities have great potential use in models of intertemporal decision making under uncertainty

reject inference in consumer credit scoring with nonignorable missing data abstract we generalize an empirical likelihood approach to deal with missing data to a model of consumer credit scoring an application to recent consumer credit data shows that our procedure yields parameter estimates which are significantly different both statistically and economically from the case where customers who were refused credit are ignored this has obvious implications for commercial banks as it shows that refused customers should not be ignored when developing scorecards for the retail business we also show that forecasts of defaults derived from the method proposed in this paper improve upon the standard ones when refused customers do not enter the estimation data set

economic status and health in childhood the origins of the gradient the well known positive association between health and income in adulthood has antecedents in childhood not only is children s health positively related to household income but the relationship between household income and children s health becomes more pronounced as children age part of the relationship can be explained by the arrival and impact of chronic conditions children from lower income households with chronic conditions have worse health than do those from higher income households the adverse health effects of lower income accumulate over children s lives part of the intergenerational transmission of socioeconomic status may work through the impact of parents income on children s health

life insurance and household consumption abstract using life insurance holdings by age sex and marital status we infer how individuals value consumption in different demographic stages we estimate equivalence scales and bequest motives simultaneously within a fully specified model where agents face us demographics and save and purchase life insurance our findings indicate that individuals are very caring for dependents that economies of scale are large that children are very costly or yield very high marginal utility that wives with children produce lots of home goods and that females display habits from marriage while men do not these findings contrast sharply with standard equivalence scales

capital accumulation and annuities in an adverse selection economy this paper suggests that adverse selection problems in competitive annuity markets can generate quantity constrained equilibria in which some agents whose length of lifetime is uncertain find it advantageous to accumulate capital privately this occurs despite the higher rates of return on annuities the welfare properties of these allocations are analyzed it is shown that the level of capital accumulation is excessive in a paretian sense policies that eliminate this inefficiency are discussed copyright 1987 by university of chicago press

private information and insurance rejections across a wide set of nongroup insurance markets applicants are rejected based on observable often high risk characteristics this paper argues that private information held by the potential applicant pool explains rejections i formulate this argument by developing and testing a model in which agents may have private information about their risk i first derive a new no trade result that theoretically explains how private information could cause rejections i then develop a new empirical methodology to test whether this no trade condition can explain rejections the methodology uses subjective probability elicitations as noisy measures of agents beliefs i apply this approach to three nongroup markets long term care disability and life insurance consistent with the predictions of the theory in all three settings i find significant amounts of private information held by those who would be rejected i find generally more private information for those who would be rejected relative to those who can purchase insurance and i show it is enough private information to explain a complete absence of trade for those who would be rejected the results suggest that private information prevents the existence of large segments of these three major insurance markets publication abstract

defined contribution plans defined benefit plans and the accumulation of retirement wealth abstract the private pension structure in the united states once dominated by defined benefit db plans is currently divided between defined contribution dc and db plans wealth accumulation in dc plans depends on a participant s contribution behavior and on financial market returns while accumulation in db plans is sensitive to a participant s labor market experience and to plan parameters this paper simulates the distribution of retirement wealth under representative db and dc plans it uses data from the health and retirement study hrs to explore how asset returns earnings histories and retirement plan characteristics contribute to the variation in retirement wealth outcomes we simulate dc plan accumulation by randomly assigning individuals a share of wages that they and their employer contribute to the plan we consider several possible asset allocation strategies with asset returns drawn from the historical return distribution our db plan simulations draw earnings histories from the hrs and randomly assign each individual a pension plan drawn from a sample of large private and public defined benefit plans the simulations yield distributions of both dc and db wealth at retirement average retirement wealth accruals under current dc plans exceed average accruals under private sector db plans although dc plans are also more likely to generate very low retirement wealth outcomes the comparison of current dc plans with more generous public sector db plans is less definitive because public sector db plans are more generous on average than their private sector db counterparts

accounting for non annuitization why don t people buy annuities several explanations have been provided by the previous literature large fraction of preannuitized wealth in retirees portfolios adverse selection bequest motives and medical expense uncertainty this paper uses a quantitative model to assess the importance of these impediments to annuitization and also studies three newer explanations government safety net in terms of means tested transfers illiquidity of housing wealth and restrictions on minimum amount of investment in annuities this paper shows that quantitatively four explanations play a big role in reducing annuity demand preannuitized wealth minimum annuity purchase requirement illiquidity of housing wealth and bequest motives the annuity purchase involves big upfront investment especially if there is a minimum purchase restriction this is binding for many especially if housing is illiquid and part of wealth is preannuitized while bequest motives significantly reduce the overall annuity demand the model with a strong bequest motive cannot match the empirical fact that high income people have the highest demand for annuities

capital accumulation and uncertain lifetimes with adverse selection this paper examines the implications of adverse selection in the private annuity market for the pricing of private annuities and the consequent effects on constrption and bequest behavior with privately known heterogeneous mortality probabilities adverse selection causes the rate of return on private annuities to be less than the actuarially fair rate based on population average mortality however a fully funded social security system with compulsory participation can offer an implied rate of return equal to the actuarially fair rate based on population average mortality thus since social security offers a higher rate of return than private annuities consumers cannot completely offset the effects of social security by transacting in the private annuity market using an overlapping generations model with uncertain lifetimes we demonstrate that the introduction of actuarially fair social security reduces the steady state rate of return on annuities and raises the steady state levels of average bequests and average consumption of the young the steady state national capital stock rises or falls according to the strength of the bequest motive this abstract was borrowed from another version of this item

an empirical examination of information barriers to trade in insurance this paper uses direct evidence to evaluate whether asymmetric information is a barrier to trade in the largest market for private insurance in the world life insurance we report several findings that seem difficult to reconcile with the conventional theory of insurance under asymmetric information we conjecture that sellers may know their costs of production better than consumers in this market as in those for most other products

adverse selection in the annuities market and the impact of privatizing social security the observation that few americans purchase life annuities has often been attributed to adverse selection a still unanswered question is whether observable price increases caused by adverse selection can be generated endogenously in a life cycle model this paper calibrates a pure life cycle model for a characteristic us cohort and reproduces three stylized facts adverse selection increases annuity prices by 7 10 percent the cost of adverse selection rises with the age of the annuitant and the cost is smaller for females than for males social security privatization could reduce annuity prices by between 2 and 3 percent

the effects of health wealth and wages on labour supply and retirement behaviour this paper estimates a life cycle model of labour supply retirement and savings behaviour in which future health status and wages are uncertain individuals face a fixed cost of work and cannot borrow against future labour pension or social security income the method of simulated moments is used to match the life cycle profiles of labour force participation hours worked and assets that are estimated from the data to those that are generated by the model the model establishes that the tax structure of the social security system and pensions are key determinants of the high observed job exit rates at ages 62 and 65 removing the tax wedge embedded in the social security earnings test for individuals aged 65 and older would delay job exit by almost one year by contrast social security benefit levels health and borrowing constraints are less important determinants of job exit at older ages for example reducing social security benefits by 20 would cause workers to delay exit from the labour force by only three months

reference effects of price and promotion on brand choice behavior when consumers are exposed to pricing and promotional activity by frequently purchased packaged goods they may develop expectations that are used as points of reference in evaluating future activi

an empirical analysis of internal and external reference prices using scanner data single source yogurt data are used to examine whether both internal and external reference prices affect purchase decisions internal reference prices are memory resident prices based on actual fair or other price concepts external reference prices are observed stimuli such as regular prices that stores may display along with a sale price for comparability discrete choice models with variables representing the two types of reference prices are estimated and both types of variables are found to have significant effects on purchase probabilities this suggests that consumers may use multiple reference points in evaluating price in purchase decisions in addition a model using an indicator of a sale price discount explains purchase probabilities as well as one that models the actual discount which suggests that consumers may be reacting to the indication of savings rather than to the amount of the discount

optimal mandates and the welfare cost of asymmetric information evidence from the u k annuity market much of the extensive empirical literature on insurance markets has focused on whether adverse selection can be detected once detected however there has been little attempt to quantify its welfare cost or to assess whether and what potential government interventions may reduce these costs to do so we develop a model of annuity contract choice and estimate it using data from the u k annuity market the model allows for private information about mortality risk as well as heterogeneity in preferences over different contract options we focus on the choice of length of guarantee among individuals who are required to buy annuities the results suggest that asymmetric information along the guarantee margin reduces welfare relative to a first best symmetric information benchmark by about 127 million per year or about 2 percent of annuitized wealth we also find that by requiring that individuals choose the longest guarantee period allowed mandates could achieve the first best allocation however we estimate that other mandated guarantee lengths would have detrimental effects on welfare since determining the optimal mandate is empirically difficult our findings suggest that achieving welfare gains through mandatory social insurance may be harder in practice than simple theory may suggest

new evidence on the money s worth of individual annuities this paper presents new information on the expected present discounted value of payouts on individual life annuities the annuity we examine is the single premium immediate life annuity an insurance product that pays out a nominal level sum as long as the covered person lives in exchange for an initial lump sum premium this annuity offers protection against the risk of someone outliving his saving given uncertainty about longevity for reasonable estimates of behavioral parameters we calculate that individual annuities are currently priced so that retirees without bequest motives should find these policies of substantial value in configuring their portfolios to smooth retirement consumption we also find that the expected present discounted value of payouts relative to the initial cost of the annuity has increased over the last decade these findings bear on the policy debate regarding the role of individual choice and self reliance in retirement planning this abstract was borrowed from another version of this item

the collateral value of fine art in this paper we examine the effect of implicit seller reserves on the estimation of value at risk based on historical asset sales data we direct our examination toward how and whether fine art might prove an appropriate form of loan collateral for banks and other financial institutions using a data set of french impressionist paintings brought to auction from 1985 to 2001 we control for the effect of works that are bought in house to construct a distribution of potential sale values that corrects for sample selection bias it turns out that the downside risk surrounding deviations of auction prices from expert presale estimates depends critically on how buy ins are incorporated if downside risk is assessed solely on historical experience with successful auction sales the data appear to support loan to value ratios between 50 and a 100 larger than loan to value ratios that countenance the existence of seller reserves the auction process however is quantifiable and can reveal the necessary risk information required for loan consideration

retirement financing an optimal reform approach we study policy reforms aimed at overhauling retirement financing we develop a novel approach by considering optimal reforms policy reforms that minimize the cost for the government while respecting the distribution of welfare in the economy our model is an olg model with life cycle features and bequest motives where individuals are heterogeneous in their earning ability and mortality theoretically we show that due to the negative correlation between earnings ability and mortality postretirement distortions to saving decisions are a robust feature of any optimal policy we then use this framework to quantitatively analyze optimal reforms our quantitative exercise shows that an optimal reform relative to the status quo must have three key features first post retirement assets must be subsidized while bequests must be taxed on average optimal marginal subsidies on assets for individuals above age 65 is 3 2 percent while optimal marginal tax on their bequest is 60 percent second pre retirement transfers must increase while social security benefits must become less generous in the aggregate and more progressive towards low income groups finally earnings tax reform does not contribute to optimal reforms i e optimal marginal taxes on earnings remain very close to the status quo the optimal policies reduce the present discounted value of net tax and transfers to each generation by 15 percent

a probabilistic choice model for market segmentation and elasticity structure marketing scholars commonly characterize market structure by studying the patterns of substitution implied by brand switching though the approach is useful it typically ignores the destabilizing

bank lending policy credit scoring and the survival of loans to evaluate loan applicants banks increasingly use credit scoring models the objective of such models typically is to minimize default rates or the number of incorrectly classified loans thereby they fail to take into account that loans are multiperiod contracts for which reason it is important for banks not only to know if but also when a loan will default in this paper a bivariate tobit model with a variable censoring threshold and sample selection effects is estimated for 1 the decision to provide a loan or not and 2 the survival time of granted loans the model proves to be an effective tool to separate applicants with short and with long survival times the bank s loan provision process is shown to be inefficient loans are granted in a way that conflicts with both default risk minimization and survival time maximization there is thus no trade off between higher default risk and higher return in the lending policy

rising mortality and life expectancy differentials by lifetime earnings in the united states are mortality and life expectancy differences by socioeconomic groups increasing in the united states using a unique data set matching administrative and survey data this study explores trends in these differentials by lifetime earnings for the 1983 2003 period results indicate a consistent increase in mortality differentials across sex and age groups the study also finds a substantial increase in life expectancy differentials by lifetime earnings the top to bottom quintile premium increased 30 percent for men and almost doubled for women these results complement recent research to point to almost five decades of increasing differential mortality in the united states

the family as an incomplete annuities market families can self insure against uncertain dates of death through implicit or explicit agreements with respect to consumption and interfamily transfers interfamily transfers need have nothing to do with altruistic feelings they may simply reflect risk sharing behavior of completely selfish family members although family annuity markets are incomplete even small families can substitute by more than 70 percent for perfect market annuities given adverse selection and transaction costs family risk pooling may be preferred to public market annuities in the absence of public annuities these risk sharing arrangements provide powerful incentives for marriage and family formation

the cyclical and secular behaviour of the labour input comparing efficiency units and hours worked summary a monthly labour input series designed to correct for the fact that all hours worked are not of the same quality is constructed and its properties compared with unadjusted hours worked this efficiency units series is constructed from bls data on hours worked and earnings by age and sex the cyclical fluctuations displayed by the efficiency units series are smaller on average than those displayed by hours worked although the difference is not large however the secular behaviour of the series is quite different hours worked per capita displays a significant positive trend while efficiency units per capita does not

modeling loss aversion and reference dependence effects on brand choice based upon a recently developed multiattribute generalization of prospect theory s value function tversky and kahneman 1991 we argue that consumer choice is influenced by the position of brands relative to multiattribute reference points and that consumers weigh losses from a reference point more than equivalent sized gains loss aversion we sketch implications of this model for understanding brand choice we develop a multinomial logit formulation of a reference dependent choice model calibrating it using scanner data in addition to providing better fit in both estimation and forecast periods than a standard multinomial logit model the model s coefficients demonstrate significant loss aversion as hypothesized we also discuss the implications of a reference dependent view of consumer choice for modeling brand choice demonstrate that loss aversion can account for asymmetric responses to changes in product characteristics and examine other implications for competitive strategy

when do price thresholds matter in retail categories marketing literature has long recognized that brand price elasticity need not be monotonic and symmetric but has yet to provide generalizable market level insights on threshold based price elasticity asymmetric thresholds and the sign and magnitude of elasticity transitions this paper introduces smooth transition regression models to study threshold based price elasticity of the top 4 brands across 20 fast moving consumer good categories threshold based price elasticity is found for 76 of all brands 29 reflect historical benchmark prices 16 reflect competitive benchmark prices and 31 reflect both types of benchmarks the authors demonstrate asymmetry for gains versus losses on three levels the threshold size and the sign and the magnitude of the elasticity difference interestingly they observe latitude of acceptance for gains compared to the historical benchmark but saturation effects in most other cases moreover category characteristics influence the extent and the nature of threshold based price elasticity while individual brand characteristics impact the size of the price thresholds from a managerial perspective the paper illustrates the sales revenue and margin implications for price changes typically observed in consumer markets

specification of the joy of giving insights from altruism this paper analyzes the joy of giving bequest motive in which the utility obtained from leaving a bequest depends only on the size of the bequest it exploits the fact that this formulation can be interpreted as a reduced form of an altruistic bequest motive to derive a relation between the value of the altruism parameter and the value of the joy of giving parameter using previous discussions of an a priori range of plausible values for the altruism parameter we then derive plausible restrictions on the joy of giving parameter we demonstrate that this parameter may well be orders of magnitude larger than assumed in the existing literature this abstract was borrowed from another version of this item

the mismatch between life insurance holdings and financial vulnerabilities evidence from the health and retirement study using data on older workers from the 1992 health and retirement survey along with an elaborate life cycle planning model the authors quantify the effect of each individual s death on the financial status of his or her survivors and the degree to which life insurance holdings moderate these consequences the average change in living standard that would result from a spouse s death is small both in absolute terms and relative to the decline that would occur without insurance however this average obscures a startling mismatch between insurance holdings and underlying vulnerabilities for many of the most vulnerable the amounts purchased are surprisingly small and for many of the least vulnerable the amounts are surprisingly large as a result uninsured vulnerabilities are quite widespread the magnitude of these vulnerabilities as well as the proclivity to address any given degree of vulnerability by purchasing life insurance vary systematically with individual and household characteristics

specifying price judgments with range frequency theory in models of brand choice abstract to construct a price judgment consumers compare a focal price with one or more reference prices however reference price operationalizations in the brand choice literature use single point summary measures that cannot account for several distributional effects to account for effects beyond the first moment of the reference price distribution the authors specify price judgments in models of brand choice in accordance with range frequency theory the findings indicate that range frequency price judgments provide a more complete specification of reference price effects and become more important with an increase in the second and third moments of a reference price distribution the data also indicate that range effects are stronger for coupon users and frequency effects are stronger for consumers exposed to a trend of prices the results have several implications for choice modeling pricing theory and pricing strategy

effective tax rates in macroeconomics cross country estimates of tax rates on factor incomes and consumption abstract this paper proposes a method for computing tax rates using national accounts and revenue statistics using this method we construct time series of tax rates for large industrial countries the method identifies the revenue raised by different taxes at the general government level and defines aggregate measures of the corresponding tax bases this method yields estimates of effective tax rates on factor incomes and consumption consistent with the tax distortions faced by a representative agent in a general equilibrium framework these tax rates compare favorably with existing estimates of marginal tax rates and highlight important international differences in tax policy

social security and individual welfare precautionary saving borrowing constraints and the payroll tax this paper examines the impact of social security on national saving and individual welfare in the presence of realistic capital market imperfections market failure in the private provision of annuities and restrictions on borrowing against anticipated future wages the introduction of social security increases lifetime welfare and reduces national saving if borrowing restrictions are absent however the increase in individual welfare is reduced and in some cases eliminated when borrowing constraints are taken into consideration the substantial difference suggests the importance of reexamining the proportional payroll tax finance of social security copyright 1987 by american economic association

human capital risk contract enforcement and the macroeconomy we use data from the survey of consumer finance and survey of income program participation to show that young households with children are under insured against the risk that an adult member of the household dies we develop a tractable macroeconomic model with human capital risk age dependent returns to human capital investment and endogenous borrowing constraints due to the limited pledgeability of human capital limited contract enforcement we show analytically that consistent with the life insurance data in equilibrium young households are borrowing constrained and under insured against human capital risk a calibrated version of the model can quantitatively account for the life cycle variation of life insurance holdings financial wealth earnings and consumption inequality observed in the us data our analysis implies that a reform that makes consumer bankruptcy more costly like the bankruptcy abuse prevention and consumer protection act of 2005 leads to a substantial increase in the volume of both credit and insurance

adverse selection in the annuity market and the role for social security i study the role of social security in providing insurance when there is adverse selection in the annuity market i calculate welfare gain from mandatory annuitization in the social security system relative to a laissez faire benchmark using a model in which individuals have private information about their mortality i estimate large heterogeneity in mortality using the health and retirement study despite that i find small welfare gain from mandatory annuitization social security has a large effect on annuity prices because it crowds out demand by high mortality individuals welfare gain would have been significantly larger in the absence of this effect

are life insurance holdings related to financial vulnerabilities using the 1995 survey of consumer finances and an elaborate life cycle model we quantify the potential financial impact of each individual s death on his or her survivors and measure the degree to which life insurance moderates these consequences life insurance is essentially uncorrelated with financial vulnerability at every stage of the life cycle as a result the impact of insurance among at risk households is modest and substantial uninsured vulnerabilities are widespread particularly among younger couples we also identify a systematic gender bias for any given level of financial vulnerability couples provide significantly more protection for wives than for husbands jel d10 g22

empirical generalizations from reference price research considerable theoretical justification for consumers use of psychological reference points exists from the research literature from a managerial perspective one of the most important applications of this concept is reference price an internal standard against which observed prices are compared in this paper we propose three empirical generalizations that are well supported in the marketing literature first there is ample evidence that consumers use reference prices in making brand choices second the empirical results on reference pricing also support the generalization that consumers rely on past prices as part of the reference price formation process third consistent with other research on loss aversion consumers have been found to be more sensitive to losses i e observed prices higher than reference prices than gains we also propose topics for further research on reference prices

social security and risk sharing abstract in this paper we identify conditions under which the introduction of a pay as you go social security system is ex ante pareto improving in a stochastic olg economy with capital accumulation and land we argue that these conditions are consistent with realistic specifications of the parameters of the economy in our model financial markets are complete and competitive equilibria interim pareto efficient therefore a welfare improvement can only be obtained if agents welfare is evaluated ex ante and arises from an improvement in intergenerational risk sharing we also examine the optimal size of a given social security system as well as its optimal reform

uncertain lifetimes and the welfare enhancing properties of annuity markets and social security this paper explores the implications of social security programs and annuity markets through which agents who are characterized by different distributions of length of lifetime share deathrelated risks when annuity markets operate a non discriminatory social security program affects only the intragenerational allocation of resources in the absence of private information regarding individual survival probabilities such a program will lead to a non optimal intragenerational allocation of resources however the presence of adverse selection considerations gives rise to a pareto improving role for a mandatory non discriminatory social security program

an investigation of reference price segments abstract empirical research on reference price has typically assumed that consumers use either an internal reference price irp or an external reference price erp but not both in brand choice decisions in this article the authors assume that consumers use both irp and erp but may consider one of them more salient than the other the authors develop a model that segments consumers on the basis of the differences in the importance they assign to each type of reference price as well as in their brand preferences and responses to marketing mix variables the authors calibrate the model on data for four categories liquid detergents ketchup tissue and yogurt in all four categories the proposed model performs significantly better than the one that assumes that consumers use either irp or erp exclusively the authors discuss the managerial implications of this finding

fair retirement under risky lifetime a premature death unexpectedly brings a life and a career to their end leading to substantial welfare losses we study the retirement decision in an economy with risky lifetime and compare the laissez faire with egalitarian social optima we consider two social objectives 1 the maximin on expected lifetime welfare allowing for a compensation for unequal life expectancies and 2 the maximin on realized lifetime welfare allowing for a compensation for unequal lifetimes the latter optimum involves in general decreasing lifetime consumption profiles as well as raising the retirement age this result is robust to the introduction of unequal life expectancies and unequal productivities

reference price and price perceptions a comparison of alternative models reference price effects on consumer price perceptions are often explained by helson s adaptation level theory in which the cognitive representation of reference price is the prototype of the relevant category however recent conceptualizations and empirical evidence suggest the possibility of an exemplar model which may be specified using volkmann s range theory or parducci s range frequency theory in two experiments these three contextual models of reference price effects are pitted against one another based on the manova and model fitting range frequency theory accounted for reference price effects that the other theories could not suggesting that consumers compare the target price against specific members of the category rather than the category prototype a third experiment demonstrated that range and frequency effects are moderated by the stimulus presentation condition suggesting that consumers place greater weight on extreme prices anchoring the range for internal reference prices than for external reference prices

private pensions mortality risk and the decision to annuitize abstract this paper examines household decisions about whether or not to annuitize retirement resources a life cycle model of consumption implemented with the use of dynamic programming techniques is used to construct a utility based measure of annuity value for individuals and couples in the health and retirement survey variation in the calculated annuity equivalent wealth arises from differences in mortality risk marital status risk aversion and the presence of pre existing annuities such as social security i find that a one percentage point increase in the annuity equivalent wealth leads to nearly a one percentage point increase in the ex ante probability of annuitizing balances in defined contribution pension plans however because much of the variation in the expected annuity decision is left unexplained by the life cycle model other factors are also analyzed health status and an individual s time horizon for financial decision making are significant determinants of the decision there is no evidence that bequest motives are an important factor in making marginal annuity decisions

hysteresis price acceptance and reference prices the existence of price thresholds in grocery retailing is well documented most authors explain the existence of price thresholds using assimilation contrast theory adaptation level theory or prospect theory however each of these theories is untenable if consumers are believed to behave rationally we offer a theoretical explanation grounded in real options theory rot and economic hysteresis we test the rot hypothesis against three plausible alternatives using a maximum likelihood friction model that we augment for unobserved heterogeneity our findings support the rot hypothesis and suggest that the existence of price thresholds in aggregate data are driven by a common recognition of real option values which do not disappear with the inclusion of consumer heterogeneity

looking behind mortgage delinquencies abstract delinquency rates for mortgages originated before and after the financial crisis are examined using a novel and large panel obtained by merging data from tax records and credit registers first we estimate the selection into the mortgage market using an exogenous index of local credit supply as exclusion restriction second controlling for selection we estimate the impact of income shocks on the delinquency rate we find that since 2008 the selection process has led to the halving of the delinquency rate conditional on the creation of a new mortgage job losses nearly double the delinquency risk estimates uncorrected for selection are severely downward biased

wealth inequality and intergenerational links previous work has had difficulty generating household saving behaviour that makes the distribution of wealth much more concentrated than that of labour earnings and that makes the richest households hold onto large amounts of wealth even during very old age i construct a quantitative general equilibrium overlapping generations model in which parents and children are linked by accidental and voluntary bequests and by earnings ability i show that voluntary bequests can explain the emergence of large estates while accidental bequests alone cannot and that adding earnings persistence within families increases wealth concentration even more i also show that the introduction of a bequest motive generates lifetime savings profiles more consistent with the data

uncertain medical expenses and precautionary saving near the end of the life cycle this paper introduces a dynamic structural model of household consumption decisions in which elderly families consider the effects of uncertain future medical expenses when deciding current levels of consumption the model with uncertain medical expenses implies a potentially important role for precautionary saving incentives to explain slow rates of dissaving among elderly americans during retirement rather than just simulating the stochastic dynamic model preference parameters are estimated using panel data on health wealth and expenditures for retired families the health uncertainty model predicts consumption levels closer to observed expenditures than a life cycle model with uncertain longevity however elderly families typically dissave their financial assets more slowly than even the baseline health uncertainty model predicts is optimal

rethinking social insurance economics 1 social insurance programs have become the most important the most expensive and often the most controversial aspect of government domestic policy not only in the united states but also in many other countries including developing and industrialized nations in the united states these programs include social security retirement disability and survivor insurance unemployment insurance and medicare insurance for those age 65 and older together these programs accounted for 37 percent of federal government spending and more than 7 percent of gdp in 2003 these ratios have increased rapidly in the past and are projected to increase even faster in the future because of the more rapid aging of the population i will discuss how the major forms of social

the effects of marital status and children on savings and portfolio choice this paper investigates the impact of demographic shocks on optimal decisions about saving life insurance and most centrally asset allocation we analyze these choices within the framework of a life cycle model that features exogenous changes in family composition heterogeneity in lifetime income and uninsurable fluctuations in earnings and medical costs our analysis indicates that marital status transitions and children can have important effects on optimal household decisions widowhood induces sharp reductions in the portfolio shares in stock and the impact is largest for women and individuals with children divorce causes men and women to reallocate their portfolios in different directions men choose much riskier allocations while women opt for safer ones children play a fundamental role in the optimal portfolio decisions men with children for example increase their shares in response to divorce by less than half as much as men without children comparing our simulation results with panel data evidence on stockholding from the psid and the hrs we conclude that changes in marital status and children matter empirically as well but not always in the ways that the model predicts

interpreting aggregate wage growth the role of labor market participation a new and easily implementable framework for the empirical analysis of the relationship between aggregate and individual wages is developed aggregate real wages are shown to contain three important bias terms one associated with the dispersion of individual wages a second deriving from compositional changes in the selected sample of workers and a third reflecting the distribution of working hours their importance for interpreting the path of aggregate wages and of the returns to education for recent experience in britain is highlighted a close correspondence between the estimated biases and the patterns of differences shown by aggregate wages is established

bank lending policy credit scoring and value at risk this paper builds on the credit scoring literature and proposes a method to calculate portfolio credit risk individual default risk estimates are used to compose a value at risk var measure of credit risk in general credit scoring models suffer from a sample selection bias the starting point is therefore to estimate an unbiased scoring model using the bivariate probit approach the paper uses a large data set with swedish consumer credit data that contains extensive financial and personal information on both rejected and approved applicants we study how marginal changes in a default risk based acceptance rule would shift the size of the banks loan portfolio its var exposure and average credit losses finally we compare the risk in the sample portfolio with that in an efficiently provided portfolio of equal size the results show that the size of a small consumer loan does not affect associated default risk implying that the bank provides loans in a way that is not consistent with default risk minimization var calculations indicate that an efficient selection by means of a default riskbased rule of loan applicants can reduce credit risk by up to 80 2002 elsevier science b v all rights reserved

an empirical analysis of latitude of price acceptance in consumer package goods scanner panel data analyses for sweetened and unsweetened drink categories with four brands in each support the presence of a region of price insensitivity around a reference price the analyses also suggest that consumers with higher average reference price have a wider latitude of price acceptance consumers with a higher frequency of purchase i e shorter average interpurchase time interval are found to have a narrower latitude of price acceptance because they are more aware of the range of price distributions finally consumers with a higher average brand loyalty have a wider latitude of price acceptance demonstrating greater tolerance of price fluctuations

how family status and social security claiming options shape optimal life cycle portfolios we show how optimal household decisions regarding work retirement saving portfolio allocations and life insurance are shaped by the complex financial options embedded in u s social security rules and uncertain family transitions our life cycle model predicts sharp consumption drops on retirement an age 62 peak in claiming rates and earlier claiming by wives versus husbands and single women moreover life insurance is mainly purchased on men s lives our model which takes social security rules seriously generates wealth and retirement outcomes that are more consistent with the data in contrast to earlier and less realistic models

costly monitoring loan contracts and equilibrium credit rationing this paper develops a model with asymmetrically informed agents and costly monitoring of loan contracts where an equilibrium can exhibit credit rationing borrowers are identical ex ante but some receive loans and others do not in contrast to existing credit rationing theories rationing does not occur here due to inflexible prices adverse selection or moral hazard optimizing behaviour produces a standard debt contract in equilibrium the aggregate quantity of loans and equilibrium interest rates respond differently depending on whether there is rationing in equilibrium

annuities and individual welfare advancing annuity demand theory we present suffcient conditions for the optimality of full annuitization under market completeness that are substantially less restrictive than those used by yaari 1965 we examine demand with market incompleteness finding that positive annuitization remains optimal widely but complete annuitization does not how uninsured medical expenses affect demand for illiquid annuities depends critically on the timing of the risk a new set of calculations with optimal consumption trajectories very different from available annuity income streams still shows a preference for considerable annuitization suggesting that limited annuity purchases are plausibly due to psychological or behavioral biases

explicit solutions of optimization models and differential games with nonsmooth asymmetric reference price effects models in marketing with asymmetric reference effects lead to nonsmooth optimization problems and differential games which cannot be solved using standard methods in this study we introduce a new method for calculating explicitly optimal strategies open loop equilibria and closed loop equilibria of such nonsmooth problems application of this method to the case of asymmetric reference price effects with loss aversive consumers leads to the following conclusions 1 when the planning horizon is infinite after an introductory stage the optimal price stabilizes at a steady state price which is slightly below the optimal price in the absence of reference price effects 2 the optimal strategy is the same as in the symmetric case but with the loss parameter determined by the initial reference price 3 competition does not change the qualitative behavior of the optimal strategy 4 adopting an appropriate constant price strategy results in a minute decline in profits

life expectancy and claiming behavior in a flexible pension system we study the relationship between early claiming of pensions and incentives in the highly flexible norwegian public pension system measuring incentives to claim based on an estimated model for expected longevity despite a strong correlation between incentives and claiming decisions the additional costs to public budgets arising from this selection turn out to be modest based on analyses exploiting only variation in expected pensions generated by variation in parental longevities and only claiming of pensions not in conjunction with retirement we conclude that part of the selection is active some individuals claim pensions early because they gain from doing so this article is protected by copyright all rights reserved

the cost of annuities implications for saving behavior and bequests the fact that most elderly u s individuals maintain a flat age wealth profile rather than buy individual life annuities contradicts the standard life cycle consumption model average expected yields on individual life annuities in the united states during 1968 1983 were lower by 4 21 6 13 percent or 2 43 4 35 percent after allowing for adverse selection than yields on plausible alternative investments simulations of a model of saving and portfolio allocation show that during the early retirement years such yield differentials can account for the absence of annuity purchases even without a bequest motive at older ages the combination of such yield differentials and a bequest motive can do so it is common experience that as we grow older and nearer to eternity we become more not less anxious about money derek brewer chaucer and his world p 213

gender gap in peer to peer lending evidence from china abstract this paper documents and analyzes the gender gap in the online credit market using data from renrendai a leading peer to peer lending platform in china we show that lending to female borrowers is associated with better loan performance including a lower probability of default a higher expected profit and a lower expected loss than for their male peers however despite the higher creditworthiness we don t find any measurable gender impact on funding success rate meaning that female borrowers have to compensate lenders by providing higher profitability to achieve a similar funding probability these evidences indicate the existence of a gender gap that discriminate against female borrowers further analysis implies that this gender gap is independent of the amount of information disclosed by borrowers

understanding reference price shoppers a within and cross category analysis abstract the authors attempt to draw profiles of reference price shoppers specifically the authors study how selected factors that affect brand choice are correlated with consumer sensitivity to gains and losses with respect to internal reference prices they also study the interaction between sociodemographics and gain and loss sensitivity furthermore the authors analyze cross category correlations in gain and loss sensitivity to shed light on their individual and category specific characters in three categories the results show significant heterogeneity in loss sensitivity among consumers and indicate that loss sensitivity is greater and more heterogeneous than gain sensitivity across categories the results show that loss sensitive shoppers are less influenced by past brand use and that both loss and gain sensitive shoppers more sensitive to price display and feature than the average consumer loss sensitive households tend to be larger and their heads are less likely to be fully employed