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december 2021 nep dge blog nep dge blog discussion about the latest research in dynamic general equilibrium theory home about the impact of u s employer sponsored insurance in the 20th century december 31 2021 by vegard nygaard and gajendran raveendranathan http d repec org n u repec mcm deptwp 2021 11 r dge the introduction of employer sponsored insurance esi in the 1940s led to the largest decline in the uninsurance rate in u s history to study the fiscal and welfare implications of this insurance expansion we endogenize the selection of workers into jobs with and without esi in a general equilibrium life cycle model where consumers face idiosyncratic health shocks our model rationalizes non targeted empirical patterns related to esi coverage between 1940 and 2010 and in recent cross sectional data esi leads to moderate welfare gains in the short run 0 5 percent of lifetime consumption for the average consumer but zero gains or even moderate losses in the long run the reason is that the health insurance benefit provided by esi dominates in the short run but the tax increase required to offset esi tax exemptions dominates in the long run we substantiate these welfare estimates by showing that our model rationalizes both the level and rise in total esi tax exemptions finally we show that tax financed universal health insurance considered among policymakers in the 1930s would have led to significantly higher welfare gains the fact the the employment based health insurance model in the united states is suboptimal is not deniable the contribution of this paper is that first that it does not contribute much of anything in well being and second that it quantifies how much better a simple tax based health insurance model would improve things without even getting into why health care is so expensive in the united states leave a comment uncategorized permalink posted by christian zimmermann unintended effects from the expansion of the non contributory health system in peru december 24 2021 by jonas nauerz and jose torres http d repec org n u repec imf imfwpa 2021 106 r dge over the last two decades the peruvian government has made great efforts to improve access to health care by significantly augmenting the coverage of the non contributory public health care system seguro integral de salud sis this expansion has a positive impact on welfare and public health indicators as it limits the risk of catastrophic health related costs for previously uninsured individuals and allows for the appropriate treatment of illnesses however it also entails some unintended consequences for informality tax revenues and gdp since a few formal agents are paying for a service that the majority of informal agents receive for free in this paper we use a general equilibrium model calibrated for peru to simulate the expansion of sis to quantify the unintended effects we find that overall welfare increases but informality rises by 2 7 percent while tax revenues and output decrease by roughly 0 1 percent given the extent of the expansion in eligibility the economic relevance of these results seems negligible however this occurs because the expansion of coverage was mostly funded by reducing the spending per insured person in fact we find larger costs if public spending is increased to improve the quality of service given universal coverage this is a nice example of a non traditional use of a dsge model in particular for a question where data is bad if there is nay and plain empirical research would not cut it if fact even if there were good data they would not be reliable to run through some of the scenarios that are presented here as a bonus interesting results where i wonder whether they can be generalized to economies with less disparity in incomes indeed it is my understanding that the rich can pay for the healthcare of the informal poor is because their incomes are so much higher and subsidizing the poor is cheap leave a comment uncategorized permalink posted by christian zimmermann no regret fiscal reforms december 20 2021 by pierre édouard collignon http d repec org n u repec crs wpaper 2021 20 r dge how should fiscal policy react to shocks ex post while preserving incentives to work and save ex ante the standard solution involves a commitment to a contingent policy whereby the initial government sets all the policies for all future states of the world contingent policies are unrealistic as an alternative i introduce no regret fiscal reforms the government has the discretion to change its fiscal policy provided households do not regret their past decisions hence flexibility is provided and incentives to work and save are preserved such reforms can be achieved by changing taxes on both capital and labor such that wealth effects exactly compensate substitution effects in a representative agent framework i study how a benevolent government uses no regret fiscal reforms and i make comparisons to the optimal contingent policy both approaches yield very similar policies and allocations but no regret reforms entail a small welfare loss second i consider robustness to near rational expectations i e the government is uncertain of the households beliefs about the distribution of shocks and implements a policy robust to this uncertainty no regret fiscal reforms are fully robust to this departure from rational expectations finally i characterize no regret fiscal reforms with wealth and skill heterogeneity the idea here is that households decisions are not influenced by what the government does in other words households are completely insured against the government s actions fine but isn t the role of government to have an impact on household decisions that is be relevant i am confused leave a comment uncategorized permalink posted by christian zimmermann the murder suicide of the rentier population aging and the risk premium december 18 2021 by joseph kopecky and alan taylor http d repec org n u repec tcd tcduee tep1220 r dge population aging has been linked to global declines in real interest rates a similar trend is seen for equity risk premia which are on the rise an existing literature can explain part of the declining trend in safe rates using demographics but has no mechanism to speak to trends in relative returns on different assets we calibrate a heterogeneous agent life cycle model with equity markets and aggregate risk and we show that aging demographics can simultaneously account for both the majority of a downward trend in the risk free rate while also increasing the return premium attached to risky assets this is because the life cycle savings dynamics that have been well documented exert less pressure on risky assets as older households shift away from risk under reasonable calibrations we find declines in the safe rate that are considerably larger than most existing estimates between the years 1990 and 2017 we are also able to account for most of the rise in the equity risk premium projecting forward to 2050 we show that persistent demographic forces will continue to push the risk free rate further into negative territory while the equity risk premium remains elevated one more paper i highlight about the consequences of aging on asset markets there is now a substantial body of literature that shows the inevitable changes in returns yet i see nothing translated into actual recommendations to investors where is the disconnect or am i not looking at the right place leave a comment uncategorized permalink posted by christian zimmermann welfare costs of exchange rate fluctuations evidence from the 1972 okinawa reversion december 3 2021 by kazuko kano and takashi kano http d repec org n u repec tky fseres 2021cf1179 r dge the main tenet of the new keynesian nk paradigm is that price dispersion caused by nominal price stickiness is the primary source of allocative inefficiency this study empirically evaluates the welfare implications of nk models by observing how internal and external price dispersion responds to two types of large aggregate shocks high inflation and sharp currency depreciation for this purpose we consider the history of us military deployment on a small southern island in japan called okinawa following the pacific war we investigate unique data variations in micro level retail prices surveyed in okinawa and mainland japan before and after the okinawan reversion to japanese sovereignty in may of 1972 by considering the okinawan experience of three currency regimes during the high inflation period of the early 1970s as valid quasi natural experiments we identify statistically significant deteriorations of currency misalignment associated with the sudden exogenous large usd depreciation versus the jpy following the nixon shock furthermore we observe that these massive aggregate shocks left the average absolute size of price changes mostly unchanged but significantly increased the average frequency of price changes in okinawa because a calibrated small open economy menu cost model fits these empirical findings better than the calvo model the welfare costs of exchange rate fluctuations may be more elusive than suggested by the open economy nk literature this is actually a very cool natural experiment even more amazing it shows that one can still find detailed data for such events that happened fifty years ago leave a comment uncategorized permalink posted by christian zimmermann you are currently browsing the nep dge blog blog archives for december 2021 follow me on twitter my tweets nep blogs nep ara economics of the mena middle east and north africa nep dge dynamic general equilibrium nep his business economic and financial history nep int international trade nep ltv unemployment inequality and poverty nep opm open macroeconomics nep pay the cashless society blogroll calls for papers christian zimmermann your editor econacademics blog aggregator nep nep dge mailing list qm rbc repec repec blog society for 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