company stock price reactions to the 2016 election shock trump taxes and trade abstract donald trump s surprise election shifted expectations corporate taxes would be lower and trade policies more restrictive relative stock prices responded appropriately high tax firms and those with large deferred tax liabilities dtls gained those with significant deferred tax assets from net operating loss carryforwards nol dtas lost domestically focused companies fared better than internationally oriented firms a price contribution analysis shows that easily assessed consequences dtls nol dtas tax rates were priced faster than more complex issues net dtls foreign exposure in sum the analysis demonstrates that expectations about tax rates greatly impact firm values

are policy platforms capitalized into equity prices evidence from the bush gore 2000 presidential election abstract this paper tests for the capitalization of policy platforms into equity prices using a sample of 70 firms favored under bush or gore platforms during the 2000 u s presidential election two sources of daily data during the six months leading up to the election are incorporated firm specific equity returns and the probability of a bush victory as implied by prices from the iowa electronic market for this group of politically sensitive firms the daily baseline estimates demonstrate that platforms are capitalized into equity prices under a bush administration relative to a counterfactual gore administration bush favored firms are worth 3 more and gore favored firms are worth 6 less implying a statistically significant differential return of 9 estimates based on weekly returns are even stronger suggesting a differential return of 16 the most sensitive sectors include tobacco worth 13 more under a favorable bush administration microsoft competitors worth 15 less under an unfavorable bush administration and alternative energy companies worth 16 less under an unfavorable bush administration a corresponding analysis of campaign contributions which allows for heterogeneity in the importance of policy platforms to the firms supports the baseline estimates

the rise of the super rich power resources taxes financial markets and the dynamics of the top 1 percent 1949 to 2008 the income share of the super rich in the united states has grown rapidly since the early 1980s after a period of postwar stability what factors drove this change in this study we investigate the institutional policy and economic shifts that may explain rising income concentration we use single equation error correction models to estimate the long and short run effects of politics policy and economic factors on pretax top income shares between 1949 and 2008 we find that the rise of the super rich is the result of rightward shifts in congress the decline of labor unions lower tax rates on high incomes increased trade openness and asset bubbles in stock and real estate markets

international stock market linkages evidence from the pre and post october 1987 period abstract this paper uses recent developments in the theory of cointegration to provide new methods of testing the linkage and dynamic interactions among stock market movements our findings are in sharp contrast with previous research which discovered strong interdependence among national stock markets prior to october 1987 for the post october 1987 period however our results show that the degree of international co movements among stock price indices has increased substantially with the nikkei index the only exception furthermore the us stock market is found to have a considerable impact on the french german and uk markets in the post crash period we also find the response of the french german and uk markets to us stock market innovations to be consistent with the view of cross border informationally efficient stock markets finally we find the japanese equity market performance to have no links with both the us stock market and the stock markets in france germany and uk during the pre and post october crash period

the effects of taxation on the selling of corporate stock and the realization of capital gains this study provides the first econometric analysis of the effect of taxation on the realization of capital gains the analysis thus extends and complements the earlier study by feldstein and yitzhaki 1978 of the effect of taxation on the selling of corporate stock the present analysis using a large new body of data obtained from individual tax returns supports the earlier finding that corporate stock sales are quite sensitive to tax rates and then shows that the effect on the realization of capital gains is even stronger

bargaining in a network of buyers and sellers abstract we analyze bargaining between buyers and sellers who are connected by an exogenously given network players can make repeated alternating public offers that may be accepted by any of the responders linked to each specific proposer our purpose is to find the conditions of the network which drive the price distribution in equilibrium this paper uses graph theory tools to provide necessary and sufficient conditions regarding the architecture of networks for the subgame perfect equilibrium of the bargaining game to coincide with the walrasian outcome

global and regional linkages across market cycles evidence from partial correlations in a network framework using a novel approach partial correlations within a complex network framework we examine the degree of globalization and regionalization of stock market linkages and how these linkages vary acro

the welfare effects of temporary tax cuts and subsidies theory estimation and applications this article presents a tractable and intuitive theory on the welfare effects of temporary tax cuts and subsidies fiscal policies that i generically term holidays the kaldor hicks efficiency effects are theoretically ambiguous with competing pro and anti efficiency effects on newly incentivized versus time shifted purchases to rectify this ambiguity i derive expressions for the welfare effects that are consistent with constant elasticity assumptions and depend only upon readily and reliably observed information to demonstrate the framework s broad applicability i analyze two different policies the 2009 cash for clunkers program and states sales tax holidays i estimate that both policies generated substantial deadweight loss jel h21 h30 d91

efficient tax reform in a dynamic model of general equilibrium the welfare gain of a shift from capital to a labor income tax is determined in a model of intertemporal optimization with infinite horizon and variable labor supply the welfare impact of small tax changes is computed by an approximation method around the steady state when the difference between the growth rate and the discount rate is small the welfare impact of tax reform depends mainly on the parameters of the production function

trade imbalance and domestic market competition policy this study investigates the effect of a country s suppression of competition in its market for nontradables it assumes that the initial equilibrium is stationary and demonstrates that if competition is suppressed in a small country the country s trade surplus increases in the short run in the large country case the same change creates an excess demand for future tradables and affects the relative price between present and future tradables using a two country model the study shows that this price change redistributes real wealth from the country with a trade deficit to the country with a trade surplus

myth and reality of flat tax reform micro estimates of tax evasion response and welfare effects in russia we examine the effects of russia s 2001 flat rate income tax reform on consumption income and tax evasion we use the gap between household expenditures and reported earnings as a proxy for tax e

the determinants of cross border equity flows abstract we explore a new panel data set on bilateral gross cross border equity flows between 14 countries 1989 1996 we show that a gravity model explains international transactions in financial assets at least as well as goods trade transactions gross transaction flows depend on market size in source and destination country as well as trading costs in which both information and the transaction technology play a role distance proxies some information costs and other variables explicitly represent information transmission an information asymmetry between domestic and foreign investors and the efficiency of transactions the geography of information is the main determinant of the pattern of international transactions while there is weak support in our data for the diversification motive once we control for the informational friction we broaden the scope of our results by presenting some evidence linking the results on equity transactions to equity holdings

international market correlation and volatility international correlations for stocks and bonds fluctuate widely over time as previous studies have found volatility appears to be contagious across markets in addition international correlation increases in periods of high market volatility although the correlation of individual foreign stock markets with the u s stock market has generally increased slightly over the past 37 years it has not increased during the past 10 years similarly the international correlation of bond markets increased in the early 1980s but it has had no discernible trend in the past 10 years the fairly low levels of international correlation among stocks or bonds suggests that national factors still strongly affect local asset prices the link between correlation and market volatility is bad news for global money managers because when the domestic market is subject to a strong negative shock is when the benefits of international risk diversification are needed most

empirical analysis of corporate tax reforms what is the null and where did it come from abstract absent theoretical guidance empiricists have been forced to rely upon numerical comparative statics from constant tax rate models in formulating testable implications of tradeoff theory in the context of natural experiments we fill the theoretical void by solving in closed form a dynamic tradeoff theoretic model in which corporate taxes follow a markov process with exogenous rate changes we simulate ideal difference in differences estimations finding that constant tax rate models offer poor guidance regarding testable implications while constant rate models predict large symmetric responses to rate changes our model with stochastic tax rates predicts small asymmetric and often statistically insignificant responses even with very long regimes one decade under plausible parameterizations the true underlying theory that taxes matter is incorrectly rejected in about half the simulated natural experiments moreover tax response coefficients are actually smaller in simulated economies with larger tax induced welfare losses

what do firms do when dividend tax rates change an examination of alternative payout responses abstract this paper investigates whether investor level taxes affect corporate payout policy decisions we predict and find a surge of special dividends in the final months of 2010 and 2012 immediately before individual level dividend tax rates were expected to increase we also find evidence that immediately before the expected tax increases firms altered the timing of their regular dividend payments by shifting what would normally be january regular dividend payments into the preceding december to our knowledge this is the first evidence in the literature about changes in the timing of regular dividend payments in response to tax law changes for both actions specials and shifting we find that it was more likely for a firm to respond to individual level tax rates if insiders owned a relatively large amount of the firm overall our paper provides evidence that managers consider individual level taxes in making corporate payout decisions

inflation tax rules and investment some econometric evidence this paper presents econometric evidence on the effect of tax incentives on business investment in the united states in the period from 1953 through1978 the analysis emphasizes that the interaction of inflation and existing tax rules has contributed substantially to the decline of business investment since the late 1960 s because the investment process is far too complex for any simple econometric model to be convincing i have estimated three quite different models of investment behavior the strength of the empirical evidence rests on the fact that all three specifications support the same conclusion more generally the analysis and evidence show that theoretical models of macroeconomic equilibrium should specify explicitly the role of distortionary taxes especially taxes on capital income the failure to include such tax rules can have dramatic and misleading effects on the qualitative as well as the quantitative properties of macroeconomic theories this paper was presented as the fisher shultz lecture at the fourth world congress of the econometric society 29 august 1980 in aix en province this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this abstract was borrowed from another version of this item

the efficiency gains from dynamic tax reform this paper presents a new simulation methodology for determining the pure efficiency gains from tax reform along the general equilibrium rational expectations growth path of life cycle economies the principal findings concern the effects of switching from a proportional income tax with rates similar to those in the u s to either a proportional tax on consumption or a proportional tax on labor income a switch to consumption taxation generates a sustainable welfare gain of almost 2 percent of lifetime resources in contrast a transition to wage taxation generates a loss of greater than percent of lifetime re sources a second general result is that even a mild degree of progressivity in the income tax system imposes a very large efficiency cost this abstract was borrowed from another version of this item

marginal excess burden in a dynamic economy abstract this note describes the computation of the marginal welfare cost of factor taxation in a dynamic representative agent perfect foresight general equilibrium model we find that this excess burden varies substantially across instruments and is sensitive to anticipation effects

do taxes matter lessons from the 1980 s the response of the economy to two major although in important respects offsetting tax reforms has been much smaller than ardent supply side revolutionaries expected thus suggesting that a reassessment of the grounds for revolt is in order this paper offers such a reassessment by first discussing how the evidence from the tax reforms of 1981 and 1986 reflects on our understanding of the response to taxation with particular reference to savings and capital gains realizations i then reconstruct a 1992 view about how taxes affect behavior a unifying theme is that the tax system does much more than alter the relative prices of real variables it also provides incentives to misreport income restructure financial claims time transactions change the legal form of organization and so on for this reason observed low tax elasticities of real variables may be due to either low elasticities of substitution or the fact that tax policy changes opportunity sets in complex ways disentangling these explanations requires an emphasis on the transaction based nature of the tax system and the administration and enforcement of tax laws this abstract was borrowed from another version of this item

permanent versus transitory tax effects and the realization of capital gains recent empirical work on captial gains implies that realizations are highly sensitive to marginal tax rates because they are based on cross section data however these estimates cannot distinguish between permanent responses to tax rate changes and the timing of realizations to take advantage of the normal fluctuations in any individual s tax rates over time the purpose of this paper is to distinguish transitory from permanent tax effects by analyzing panel data for taxpayers controlling for permanent and transitory income and other variables the estimates suggest both transitory and permanent effects although the permanent tax rate effect is not significant in all cases

the price of policy risk empirical insights from choice experiments with european photovoltaic project developers managing the transition to a renewable energy future is an important policy priority in many countries solar photovoltaic pv technology is expected to make an important contribution but due to relatively higher cost its growth to date has been largely driven by public policy notably feed in tariffs feed in tariffs have been implemented in various countries however with widely differing outcomes in terms of installed pv capacity previous research indicates that the level of policy risk may be an important driver for differences in renewable energy policy effectiveness more specifically we suggest that investors who take a decision between pv investment opportunities in different countries carefully weigh feed in tariff induced returns against a set of policy risks and choose the country with the most favorable risk return profile we empirically test this model based on a stated preference survey among european pv project developers consisting of 1575 choice decisions by 63 investors the findings of our study demonstrate that risk matters in pv policy design and that a price tag can be attached to specific policy risks such as the duration of administrative processes or uncertainty induced by an approaching capacity cap governments can build on our empirical results to design policies that will be effective in attracting private pv investment while at the same time maintaining efficiency by providing an adequate compensation for policy risk

experimental evidence on the relationship between tax evasion opportunities and labor supply abstract motivated by the observation that access to evasion opportunities is distributed heterogeneously across the labor market this paper examines the extent to which labor supply elasticities with respect to tax rates depend on such evasion opportunities we first discuss the channels through which access to evasion affects labor supply responses and then set up a laboratory experiment n 205 in which all participants undertake a real effort task over several rounds subjects face a tax rate that varies across rounds and are required to pay taxes on earned income the treatment group is given the opportunity to underreport income while the control group is not we find evidence that participants in the treatment group respond differently to changes in the net of tax rate than participants in the control group the effect is more prevalent when tax rates fall additionally the direction of the treatment effect is dependent on the evolution of tax rates across rounds

dividend taxes and firm valuation new evidence dividend taxes and firm valuation new evidence by alan j auerbach and kevin a hassett the jobs and growth tax relief act of 2003 jgtra03 reduced the tax rates on dividends with the highest statutory tax rate of 35 percent falling to 15 percent an interesting twist on the dividend tax cut was its temporary nature the provision as passed was effective only through 2008 and as recent congressional deliberations have illustrated the extension its supporters envisioned was by no means certain this large dividend tax reduction along with its sunset provision offers an unusual natural research experiment on the effects of dividend taxation the theory of dividend taxation suggests three possible scenarios for the effects of the dividend tax reduction under the tax irrelevance view the marginal shareholder is a tax free entity or a taxable investor who ignores or can offset incremental taxes and the dividend tax reduction has no effect on equity values or firm behavior under the traditional view the marginal source of equity finance is new share issuance and the tax reduction feeds through to the firm s user cost and stimulates extra capital formation share values rise in the short run but after full adjustment the higher capital level reduces the marginal revenue product of capital enough to offset the dividend tax reduction leaving equity prices the same under the new view the marginal source of finance is retained earnings and the dividend tax cut is capitalized into the share price of the firm but has no investment effect understanding the economic consequences of the dividend tax reduction requires knowledge of the empirical relevance of these competing views our previous paper auerbach and hassett 2005 performed an event study analysis of a large panel of firms to determine how firm attributes affected the valuation response over eight key event dates leading up to the 2003 legislation our results taken together rejected outright

what happens when you tax the rich evidence from executive compensation this paper examines the responsiveness of taxable income to changes in marginal tax rates using detailed compensation data on several thousand corporate executives from 1991 to 1995 the data confirm that the higher marginal rates of 1993 led to a significant decline in taxable income indeed this small group of executives may account for as much as 20 percent of the aggregate change in wage and salary income for approximately the one million richest taxpayers over this time period one person alone can account for more than 2 percent the decline however is almost entirely a short run shift in the timing of compensation rather than a permanent reduction in taxable income the short run elasticity of taxable income with respect to the net of tax share exceeds one in this sample but the elasticity after one year is at most 0 4 and probably closer to zero breaking out the tax responsiveness of different types of compensation shows that the large short run responses come almost entirely from a large inc

optimal taxation and optimal tax systems the theory of optimal taxation has for the pas two decades been the reigning normative approach of taxation this paper argues that in its current state optimal tax theory is incomplete as a guide to action concerning many critical issues in tax policy it is incomplete because it has not yet come to terms with taxation as a system of coercively collecting revenues from individuals who will tend to resist the coercive nature of collection taxes implies that the resource cost of implementing a tax system have been and will continue to be a critical determinant of appropriate tax policy the paper first presents the three cornerstone propositions of optimal tax theory and then it discusses the influence of these propositions on recent tax policy developments it concludes by sketching an alternative to optimal taxation called the theory of optimal tax systems which embraces the insights of optimal taxation but also considers the technology of raising taxes and the constraints placed upon tax policy by that technology the optimal tax systems perspective is shown to shed light on the choice of tax instruments the problem of tax evasion and the appropriate tax treatment of capital income this abstract was borrowed from another version of this item

changes in corporate effective tax rates over the past 25 years abstract we investigate systematic changes in corporate effective tax rates over the past 25 years and find that effective tax rates have decreased significantly contrary to conventional wisdom the decline in effective tax rates is not concentrated in multinational firms effective tax rates have declined at approximately the same rate for both multinational and domestic firms moreover within multinational firms both foreign and domestic effective rates have decreased finally changes in firm characteristics and declining foreign statutory tax rates explain little of the overall decrease in effective rates

fixing the leak in okun s bucket optimal tax progressivity when avoidance can be controlled this paper examines optimal income tax progressivity when avoidance responses to taxation are important and can be controlled at some cost by the government a simple example shows that ignoring the fact that avoidance can be controlled that the leak in okun s bucket can be fixed can lead to misleading implications about the optimal degree of tax rate progressivity the paper then generalizes the standard modei of the optimal linear income tax to include taxpayer avoidance behavior and the ability of government to control the avoidance but not the labor supply response to higher marginal tax ites the discussion suggests that if the tax burden is to be made more progressive base broadening and increased enforcement ought to be considered as alternatives or complements to increasing tax rates for high income individuals

nonlinearities and heterogeneity in environmental quality an empirical analysis of deforestation we use a panel data set of 59 developing countries over the 1972 1994 period to study the deforestation process relying on both parametric and semiparametric models we examine nonlinearities and heterogeneity in the deforestation process we first study the existence of an environmental kuznets curve ekc and then analyze determinants of deforestation our data sample provides no evidence of an ekc we also find that political institution failures may worsen the deforestation process in developing countries

partisan impacts on the economy evidence from prediction markets and close elections analyses of the effects of election outcomes on the economy have been hampered by the problem that economic outcomes also influence elections we sidestep these problems by analyzing movements in economic indicators caused by clearly exogenous changes in expectations about the likely winner during election day analyzing high frequency financial fluctuations following the release of flawed exit poll data on election day 2004 and then during the vote count we find that markets anticipated higher equity prices interest rates and oil prices and a stronger dollar under a george w bush presidency than under john kerry a similar republican democrat differential was also observed for the 2000 bush gore contest prediction market based analyses of all presidential elections since 1880 also reveal a similar pattern of partisan impacts suggesting that electing a republican president raises equity valuations by 2 3 percent and that since ronald reagan republican presidents have tended to raise bond yields

debt and distortionary taxation in a simple perfect foresight model abstract we examine the real effects of a temporary substitution of debt for distortionary income taxation we find that such a policy may reduce consumption increase investment and reduce interest rates these results arise even though we examine the same model used by barro where temporary substitution of debt for lump sum taxes was shown to have no real effects we show that these anti keynesian effects on consumption are as significant as various pro keynesian effects such as finite lives hence the impact of debt is an empirical issue and ricardian neutrality appears to be a reasonable benchmark

the welfare cost of capital income taxation in a growing economy the welfare cost of capital income taxation is analyzed in a general equilibrium framework where the private sector is represented by a competitive household endowed with perfect foresight and an infinite life the value of the welfare cost depends essentially on the elasticity of substitution between capital and labor in the production function numerical estimates are presented for different values of the parameters of the model the welfare gain obtained by the abolition of the capital income tax is smaller when the private sector is not endowed with perfect foresight it is reduced by about 40 percent when expectations are myopic the allocation efficiency cost of the corporate tax dwarfs the intertemporal welfare cost

income taxes and the timing of marital decisions abstract in this paper we estimate the impact of the federal individual income tax on the timing of marital decisions anecdotal evidence suggests that the tax penalty often associated with marriage contributes to the decision of when to marry using household data from the panel study on income dynamics we estimate various models of the probability of delaying marriage as a function of the change in tax burden caused by marriage as well as several other variables we find that there is a significant positive relationship between the marriage penalty in a year and the probability of delaying marriage until the following year the magnitude of the effect however is small

the political economics of not paying taxes this paper considers redistributive as well as political consequences of tax avoidance when tax avoidance is possible the official tax rate does not necessarily correspond to what individuals actually pay this affects both redistributive outcomes as well as political attitudes towards taxation depending on the avoidance technology different political equilibria emerge when the avoidance possibilities are limited the classical conflict between rich and poor is sustained if the tax avoidance technology is more effective however the equilibrium outcome can change to a situation where a coalition of poor and the very richest favor a higher tax rate comparing the model predictions with data on income inequality and evidence of avoidance activity it comes surprisingly close to actual observations

does tax policy affect executive compensation evidence from postwar tax reforms abstract the trends in executive pay and labor income tax rates since the 1940s suggest a high elasticity of taxable income with respect to tax policy by contrast the level and structure of executive compensation have been largely unresponsive to tax incentives since the 1980s however the relative tax advantage of different forms of pay was small during this period using a sample of top executives in large firms from 1946 to 2005 we also find a small short run response of salaries qualified stock options and bonuses paid after retirement to changes in tax rates on labor income even though tax rates were significantly higher and more heterogeneous across individuals in the first several decades following wwii we explore several potential explanations for the conflicting impressions given by the long run and short run correlations between taxes and pay including changes in social norms and concerns about pay equality

timing tax evasion standard models of tax evasion implicitly assume that evasion is either fully detected or not detected at all empirically this is not the case casting into doubt the traditional rationales for interior evasion choices i propose two alternative dynamic explanations for interior tax evasion rates first fines increasing in the duration of an evasion spell implying that the expected costs of evasion increase convexly with the time spent non reporting while the benefits increase linearly second different vintages of income sources subject to aggregate risk and fixed costs when switched between evasion states the dynamic approach yields a transparent representation of revenue losses and social costs due to tax evasion novel findings on the effect of policy on tax evasion and a tractable framework for the analysis of tax evasion dynamics

european financial market dependence an industry analysis this paper uses a copula model to investigate the degree and determinants of european market dependence across 10 industries in 12 euro zone and 8 non euro zone stock markets during the period 1992 2011 most of the industries in euro countries show a dependence increase with the euro area after the introduction of the euro the effects are strongest in countries with larger market capitalization and in the financials industrials consumer goods utilities technology and telecommunications industries overall the export intensity interest rate sensitivity and competitiveness of an industry and the financial development and economic openness of a country are the most important determinants of changes in equity market dependence the period around the lehman collapse also shows higher equity market dependence between european countries while the lower dependence increase during the period of the recent european sovereign debt crisis suggests that country specific factors may matter more than before

blind to carbon risk an analysis of stock market reaction to the paris agreement abstract it is increasingly recognized that a transition to sustainable finance is crucial to scale up the low carbon investments needed to achieve the global climate targets a main barrier to portfolios decarbonization is the lack of conclusive evidence on whether low carbon investments add value to a portfolio and on whether markets react to climate announcements by rewarding penalizing low carbon carbon intensive assets to fill this gap we develop an empirical analysis of the low carbon and carbon intensive indices for the eu us and global stock markets we test if financial markets are pricing the paris agreement pa by decreasing increasing the systematic risk and increasing decreasing the portfolio weights of low carbon carbon intensive indices afterwards we find that after the pa the correlation among low carbon and carbon intensive indices drops the overall systematic risk for the low carbon indices decreases consistently while stock markets reaction is mild for most carbon intensive indices moreover the weight of the low carbon indices within an optimal portfolio tends to increase after the pa this evidence suggests that stock market investors have started to consider low carbon assets as an appealing investment opportunity after the pa but have not penalized yet carbon intensive assets

heterogeneity stratification and growth macroeconomic implications of community structure and school finance this paper examines how socioeconomic stratification and alternative systems of education finance affect inequality and growth agents interact through local public goods or externalities school funding neighborhood effects and economywide linkages complementary skills knowledge spillovers sorting families into homogeneous communities often minimizes the costs of existing heterogeneity but mixing reduces heterogeneity faster integration therefore tends to slow down growth in the short run yet raise it in the long run a move to state funding of education presents society with a similar intertemporal trade off local and global complementarities play major roles in determining the efficient social and educational structures copyright 1996 by american economic association

real effects of accounting rules evidence from multinational firms investment location and profit repatriation decisions we analyze survey responses from nearly 600 tax executives to better understand corporate decisions about real investment location and profit repatriation our evidence indicates that avoiding financial accounting income tax expense is as important as avoiding cash income taxes when corporations decide where to locate operations and whether to repatriate foreign earnings this result is important in light of the recent research about whether financial accounting affects investment and in light of the decades of research on foreign investment that examines the role of cash income taxes but heretofore has not investigated the importance of financial reporting effects our analysis suggests that financial reporting is an important factor to be considered in the policy debates focused on bringing investment to the united states

the impact of state taxes on self insurance abstract this paper assesses whether insurers state taxes reduce purchases of property casualty coverage tests are conducted using state aggregates of insurer level data from publicly available annual accounting reports for 1993 1995 a positive relation between self insurance and state taxes is detected consistent with consumers opting to self insure rather than bear the incidence of higher insurer taxes as expected tax effects vary with the elasticity of demand when demand is largely inelastic e g automobile liability coverage taxes do not affect self insurance