Relative Status and Well-Being: Evidence from U.S. Suicide Deaths
2012-16 :: With Daly and Johnson :: September 2012
We assess the importance of interpersonal income comparisons using data on suicide deaths. We examine whether suicide risk is related to others’ income, holding own income and other individual and environmental factors fixed. We estimate models of the suicide hazard using two independent data sets: (1) the National Longitudinal Mortality Study and (2) the National Center for Health Statistics’ Multiple Cause of Death Files combined with the 5 percent Public Use Micro Sample of the 1990 decennial census. Results from both data sources show that, controlling for own income and individual characteristics, individual suicide risk rises with others’ income.
Should Transportation Spending Be Included in a Stimulus Program? A Review of the Literature
2012-15 :: With Leduc :: September 2012
Transportation spending often plays a prominent role in government efforts to stimulate the economy during downturns. Yet, despite the frequent use of transportation spending as a form of fiscal stimulus, there is little known about its short- or medium-run effectiveness. Does it translate quickly into higher employment and economic activity or does it impact the economy only slowly over time? This paper reviews the empirical findings in the literature for the United States and other developed economies and compares the effects of transportation spending to those of other types of government spending.
Job Creation Tax Credits and Job Growth: Whether, When, and Where?
2010-25 :: With Chirinko :: December 2010
This paper studies the effects of Job Creation Tax Credits (JCTCs) enacted by U.S. states over the past 20 years. First, we investigate whether JCTCs stimulate within-state job growth. Second, we evaluate when JCTCs' effects occur? In particular, we test for negative anticipation effects between JCTC enactment and when legislation goes into effect. Third, we assess from where any increased employment comes from – in-state or out-of-state? These questions are investigated in an event study framework applied to monthly panel data on employment, the JCTC effective and legislative dates, and various controls.
A State Level Database for the Manufacturing Sector: Construction and Sources
2009-21 :: With Chirinko :: October 2009
This document describes the construction of and data sources for a state-level panel data set measuring output and factor use for the manufacturing sector. These data are a subset of a larger, comprehensive data set that we currently are constructing and hope to post on the FRBSF website in the near future. The comprehensive data set will cover the U.S. manufacturing sector and may be thought of as a state-level analog to other widely used productivity data sets such as the industry-level NBER Productivity Database or Dale Jorgenson's "KLEM" database or the country-level Penn World Tables, but with an added emphasis on adjusting prices for taxes. The selected variables currently available for public use are nominal and real gross output, nominal and real investment, and real capital stock. The data cover all fifty states and the period 1963 to 2006.
Tax Competition among U.S. States: Racing to the Bottom or Riding on a Seesaw?
2008-03 :: With Chirinko :: July 2011
Dramatic declines in capital tax rates among U.S. states and European countries have been linked by many commentators to tax competition and an inevitable "race to the bottom." This paper provides an empirical analysis of the reaction of capital tax policy in a given U.S. state to changes in capital tax policy by other states. The analysis is undertaken with a novel panel data set covering the 48 contiguous U.S. states for the period 1965 to 2006 and is guided by the theory of strategic tax competition. The latter suggests that capital tax policy is a function of "foreign" (out-of-state) tax policy, home state and foreign state economic and demographic conditions and, perhaps most importantly, preferences for government services. We estimate
this reaction function for the two primary business tax policies employed by states: the investment tax credit rate and the corporate income tax rate. The slope of the reaction function--the equilibrium response of home state to foreign state tax policy--is negative, contrary to many prior empirical studies of fiscal reaction functions. This seemingly paradoxical result is due to two critical elements--controlling for aggregate shocks and allowing for delayed responses to
foreign tax changes. Omitting either of these elements leads to a misspecified model and a positively sloped reaction function. Our results suggest that the secular decline in capital tax rates, at least among U.S. states, reflects synchronous responses among states to common shocks rather than competitive responses to foreign state tax policy. While striking given prior findings in the literature, these results are not surprising. The negative sign is fully consistent with
qualitative and quantitative implications of the theoretical model developed in this paper. Rather than "racing to the bottom," our findings suggest that states are "riding on a seesaw."
Keeping Up with the Joneses and Staying Ahead of the Smiths: Evidence from Suicide Data
2006-12 :: With Daly :: May 2006
This paper empirically assesses the theory of interpersonal income comparison using a unique data set on suicide deaths in the United States. We treat suicide as a choice variable, conditional on exogenous risk
factors, reflecting one's assessment of current and expected future utility. Using this framework we examine whether differences in group-specific suicide rates are systematically related to income dispersion, controlling for socio-demographic characteristics and income level. The results strongly
support the notion that individuals consider relative income in addition to absolute income when evaluating their own utility. Importantly, the findings suggest that relative income affects utility in a two-sided manner, meaning that individuals care about the incomes of those above them (the Joneses) and those below them (the Smiths). Our results complement and extend those from studies using subjective survey data or data from controlled experiments.
Inequality and Mortality: Evidence from County-level Data
Manuscript :: With Daly :: May 2011
Research in sociology, epidemiology, and public health, looking across countries, states,
and MSAs, generally has found positive and statistically significant associations between
inequality and mortality. More recent work, using richer data and more rigorous methods,
have generally found little or no association between inequality and mortality. We combine
U.S. county-level data for 1990 and 2000 on age-race-sex-specific mortality rates, a rich set
of observable covariates, and previously-unused Census data on local income inequality
(gini index, 95/20 interpercentile ratio, 95/50 ratio, and 50/20 ratio) to estimate the effects
of inequality on mortality risk. Using these very detailed county-level data and panel data
methods, our paper comes full circle and provides evidence of a statistically significant
negative relationship between mortality and inequality. The finding that increases in
inequality are associated with declines in mortality at the county level suggests a change in
course for the literature on health and inequality. In particular, the emphasis to date on the
potential psychosocial and resource allocation costs associated with higher inequality is
likely missing important offsetting positives that net out to protection.
Relative Status and Well-Being: Evidence from U.S. Suicide Deaths
Forthcoming in Review of Economics and Statistics :: With Daly and Johnson
Roads to Prosperity or Bridges to Nowhere? Theory and Evidence on the Impact of Public Infrastructure Investment
Forthcoming in NBER Macroeconomic Annual 2012 :: With Leduc
We examine the dynamic macroeconomic effects of public infrastructure investment both theoretically and empirically, using a novel data set we compiled on various highway spending measures. Relying on the institutional design of federal grant distributions among states, we construct a measure of government highway spending shocks that captures revisions in expectations about future government investment. We find that shocks to federal highway funding has a positive effect on local GDP both on impact and after 6 to 8 years, with the impact effect coming from shocks during (local) recessions. However, we find no permanent effect (as of 10 years after the shock). Similar impulse responses are found in a number of other macroeconomic variables. The transmission channel for these responses appears to be through initial funding leading to building, over several years, of public highway capital which then temporarily boosts private sector productivity and local demand. To help interpret these findings, we develop an open economy New Keynesian model with productive public capital in which regions are part of a monetary and fiscal union. We show that the presence of productive public capital in this model can yield impulse responses with the same qualitative pattern that we find empirically.
Fiscal Spending Jobs Multipliers: Evidence from the 2009 American Recovery and Reinvestment Act
Forthcoming in American Economic Journal: Economic Policy
This paper estimates the "jobs multiplier" of fiscal spending using the state-level allocations of federal stimulus funds from the American Recovery and Reinvestment Act (ARRA) of 2009. Because the level and timing of stimulus funds that a state receives are potentially endogenous, I exploit the fact that most of these funds were allocated according to exogenous formula factors such as the number of federal highway miles in a state or its youth share of population. The estimates imply that each million dollars of announced stimulus in a state was associated with approximately eight jobs created or saved in that state as of one year after the ARRA was enacted. The implied cost per job is about $125,000.
Relative Status and Well-Being: Evidence from U.S. Suicide Deaths
Forthcoming in Review of Economics and Statistics :: With Daly and Johnson
This paper assesses the importance of interpersonal income comparisons using individual level data on suicide deaths. Our analysis considers whether suicide risk is systematically related to the income of others, holding own income and other individual and environmental factors fixed. We estimate proportional hazards and probit models of the suicide hazard using two separate and independent data sets: (1) the National Longitudinal Mortality Study and (2) the National Center for Health Statistics' Mortality Detail Files combined with the 5 percent Public Use Micro Sample of the 1990 decennial census. Results from both data sources show that, controlling for own income and individual characteristics, individual suicide risk rises with reference group income. This result holds for reference groups defined either by county or more narrowly by county and one demographic marker (e.g., age, sex, race). These findings are robust to alternative specifications and cannot be explained by geographic variation in cost of living, access to emergency medical care, or suicide misclassification. Our results support findings using self-reported happiness data and are consistent with models of utility featuring "external habit" or "keeping up with the Joneses" preferences.
Dark Contrasts: The Paradox of High Rates of Suicide in Happy Places
Journal of Economic Behavior and Organization 80(3), 2011, 435-442 :: With Daly, Oswald, and Wu
Suicide kills more Americans than die in motor accidents. Its causes remain poorly understood. We suggest in this paper that the level of others' happiness may be a risk factor for suicide (although one's own happiness likely protects one from suicide). Using U.S. and international data, the paper provides evidence for a paradox: the happiest places tend to have the highest suicide rates. The analysis appears to be the first published study to be able to combine rich individual-level data sets--one on life satisfaction in a newly available random sample of 1.3 million Americans and another on suicide decisions among an independent random sample of about 1 million Americans--to establish this dark-contrasts paradox in a consistent way across U.S. states. The study also replicates the finding for the Western industrialized nations. The paradox, which holds individual characteristics constant, is not an artifact of population composition or confounding factors (or of the ecological fallacy). We conclude with a discussion of the possible role of relative comparisons of utility.
Can Lower Taxes Be Bought? The Role of Business Rent-Seeking in Tax Competition among U.S. States
National Tax Journal 63(4), 2010, 967-994 :: With Chirinko
The standard model of strategic tax competition--the noncooperative tax-setting behavior of jurisdictions competing for a mobile capital tax base--assumes that government policymakers are perfectly benevolent, acting solely to maximize the utility of the representative resident in their jurisdiction. We depart from this assumption by allowing for the possibility that policymakers also may be influenced by the rent-seeking (lobbying) behavior of businesses. Businesses recognize the factors affecting policymakers' welfare and may make campaign contributions to influence tax policy. This extension to the standard strategic tax competition model implies that business contributions may affect not only the levels of equilibrium tax rates but also the slope of the tax reaction function between jurisdictions. Thus, business campaign contributions may directly influence business tax rates, as well as indirectly shape tax competition, and enhance or retard the mobility of capital across jurisdictions.
Based on a panel of 48 U.S. states and unique data on business campaign contributions, our empirical work uncovers four key results. First, we document a significant direct effect of business contributions on tax policy. Second, the economic value of a $1 business campaign contribution in terms of lower state corporate taxes is approximately $6.65. Third, the slope of the reaction function between tax policy in a given state and the tax policies of its competitive states is negative, and this slope is robust to business campaign contributions. Fourth, we document the sensitivity of the empirical results to state effects.
Beggar Thy Neighbor? The In-State, Out-of-State, and Aggregate Effects of R&D Tax Credits
Review of Economics and Statistics 91(2), 2009, 431-436
The proliferation of R&D tax incentives among U.S. states in recent decades raises two important questions: (1) Are these tax incentives effective in achieving their stated objective, to increase R&D spending within the state? (2) To the extent the incentives do increase R&D within the state, how much of this increase is due to drawing R&D away from other states? In short, this paper answers (1) "yes" and (2) "nearly all," with the implication that the net national effect of R&D tax incentives on R&D spending is near zero. The paper addresses these questions by exploiting the cross-sectional and time-series variation in R&D tax credits, and in turn the user cost of R&D, among U.S. states from 1981-2004 to estimate an augmented version of the standard R&D factor demand model. I estimate an in-state user cost elasticity (UCE) around -2.5 (in the long-run), consistent with previous studies of the R&D cost elasticity. However, the R&D elasticity with respect to costs in neighboring states, which has not previously been investigated, is estimated to be around +2.5, suggesting a zero-sum game among states and raising concerns about the efficiency of state R&D credits from the standpoint of national social welfare.
Happiness, Unhappiness, and Suicide: An Empirical Assessment
Journal of European Economic Association 7, 2009, 539-549 :: With Daly
The use of subjective well-being (SWB) data for investigating the nature of individual preferences has increased tremendously in recent years. There has been much debate about the cross-sectional and time-series patterns found in these data, particularly with respect to the relationship between SWB and relative status. Part of this debate concerns how well SWB data measures true utility or preferences. In a recent paper, Daly, Wilson, and Johnson (2007) propose using data on suicide as a revealed preference (outcome-based) measure of well-being and find strong evidence that reference-group income negatively affects suicide risk. In this paper, we compare and contrast the empirical patterns of SWB and suicide data. We find that the two have very little in common in aggregate data (time series and cross-sectional), but have a strikingly strong relationship in terms of their determinants in individual-level, multivariate regressions. This latter result cross-validates suicide and SWB micro data as useful and complementary indicators of latent utility.
IT and Beyond: The Contribution of Heterogeneous Capital to Productivity
Journal of Business and Economic Statistics 27(1), January 2009, 52-70
This article explores the relationship between capital composition and productivity using a unique,
detailed dataset on firm investment in the United States in the late 1990s. I develop a methodology for
estimating the separate effects of multiple capital types in a production function framework. I back out
the implied marginal products of each capital type and compare these with rental price data. I find that
although most capital types earned normal returns, information and communications technology capital
goods had marginal products substantially above their rental prices. The article also provides evidence of
complementarities and substitutabilities among capital types and between capital types and labor.
State Investment Tax Incentives: A Zero-Sum Game?
Journal of Public Economics 92(12), December 2008, 2,362-2,384 :: With Chirinko
Over the past four decades, state investment tax incentives have proliferated. This emergence of state investment tax credits (ITC) and other investment tax incentives raises two important questions: (1) Are these tax incentives effective in achieving their stated objective, to increase investment within the state?; (2) To the extent these incentives raise investment within the state, how much of this increase is due to investment drawn away from other states? To begin to answer these questions, we construct a detailed panel data set for 48 states for 20-plus years. The dataset contains series on output and capital, their relative prices, and establishment counts. The effects of tax variables on capital formation and establishments are measured by the Jorgensonian user cost of capital that depends in a nonlinear manner on federal and state tax variables. Cross-jurisdictional differences in state investment tax credits and state corporate tax rates entering the user cost, combined with a panel that is long in the time dimension, are key to identifying the effectiveness of state investment incentives. Two models are estimated. The Capital Demand Model is motivated by the first-order condition for a profit-maximizing firm and relates at the state level the capital/output ratio to the relative user cost of capital. The Twin-Counties Model exploits both the spatial breaks ("discontinuities") in tax policy at state borders and our panel data set to relate at the county level the relative user cost to the location of manufacturing establishments. Using the Capital Demand Model, we find that own-state capital formation is substantially increased by tax-induced reductions in the own-state price of capital and, more interestingly, substantially decreased by tax-induced reductions in the price of capital in competitive-states. Similarly, using our Twin-Counties Model, we find that county manufacturing establishment counts around state borders are higher on the side of the border with the lower price of capital, but the difference is economically small, suggesting that establishments are much less mobile than overall capital. Extensions of the Capital Demand Model also reveal that state capital tax policy appears to be a zero-sum game among the states in that an equiproportionate increase in own-state and competitive-states user costs tends to have no effect on own-state capital formation.
Investment Behavior of U.S. Firms over Heterogeneous Capital Goods: A Snapshot
Review of Income and Wealth 54(2) , June 2008, 269-278
Recent research has indicated that investment in certain capital types, such as computers, has fostered accelerated productivity growth and enabled a fundamental reorganization of the workplace. However, remarkably little is known about the composition of investment at the micro level. This short paper takes an important first step in filling this knowledge gap by looking at the newly available micro data from the 1998 Annual Capital Expenditure Survey (ACES), a sample of roughly 30,000 firms drawn from the private, nonfarm economy. The paper establishes a number of stylized facts.
Among other things, I find that in contrast to aggregate data the typical firm tends to concentrate its capital expenditures in a very limited number of capital types, though which types are chosen varies greatly from firm to firm. In addition, computers account for a significantly larger share of firms' incremental investment than they do of lumpy investment.
Micro and Macro Data Integration: The Case of Capital
In A New Architecture for The U.S. National Accounts, NBER/CRIW Volume, ed. by Jorgenson, Landefeld, and Nordhaus :: Chicago: University of Chicago, 2006. 541-609 :: With Becker, Jarmin, Klimek, and Haltiwanger
Micro and macro data integration should be an objective of economic measurement as it is
clearly advantageous to have internally consistent measurement at all levels of aggregation--firm, industry and aggregate. In spite of the apparently compelling arguments, there are few
measures of business activity that achieve anything close to micro/macro data internal
consistency. The measures of business activity that are arguably the worst on this dimension are
capital stocks and flows. In this paper, we document, quantify and analyze the widely different
approaches to the measurement of capital from the aggregate (top down) and micro (bottom up)
perspectives. We find that recent developments in data collection permit improved integration of
the top down and bottom up approaches. We develop a prototype hybrid method that exploits
these data to improve micro/macro data internal consistency in a manner that could potentially
lead to substantially improved measures of capital stocks and flows at the industry level. We
also explore the properties of the micro distribution of investment. In spite of substantial data
and associated measurement limitations, we show that the micro distributions of investment
exhibit properties that are of interest to both micro and macro analysts of investment behavior.
These findings help highlight some of the potential benefits of micro/macro data integration.
Quantifying Embodied Technological Change
Review of Economic Dynamics 7(1), January 2004, 1-26 :: With Sakellaris
We estimate the rate of embodied technological change directly from plant-level manufacturing data on current output and input choices along with histories on their vintages of equipment investment. Our estimates range between 8 percent and 17 percent for the typical U.S. manufacturing plant during the years 1972-1996. Any number in this range is substantially larger than is conventionally accepted with some important implications. First, the role of investment-specific technological change as an engine of growth is even larger than previously estimated. Second, existing producer durable price indexes do not adequately account for quality change. As a result, measured capital stock growth is biased. Third, if accurate, the Hulten and Wykoff (1981) economic depreciation rates may primarily reflect obsolescence.
Journal of Monetary Economics 51(1), January 2004, 1-32 :: With Caselli
We look at disaggregated imports of various types of equipment to make inferences on cross-country differences in the composition of equipment investment. We make three contributions. First, we document strikingly large differences in investment composition. Second, we explain the differences as being based on each equipment type's degree of complementarity with other factors whose abundance differs across countries. Third, we show that the composition of capital has the potential to account for some of the large observed differences in total factor productivity across countries.
Embodying Embodiment in a Structural, Macroeconomic Input-Output Model
Economic Systems Research 15(3), September 2003, 371-398
In this paper, I develop a regression-based system of labor productivity
equations that account for capital-embodied technological change, and I incorporate this system into IDLIFT, a structural, macroeconomic input-output model of the U.S. economy. Builders of regression-based forecasting models have long had difficulty finding labor productivity equations that exhibit the "Solowian" property that movements in investment should cause accompanying movements in labor productivity. The production theory developed by Solow and others dictates that this causation is driven by the effect of traditional capital deepening as well as technological change embodied in capital. Lack of measurement of the latter has hampered the ability of researchers to estimate properly the productivity-investment relationship. Recent research by Wilson (2001) has alleviated this difficulty by estimating industry-level embodied technological change. In this paper, I utilize those estimates to construct capital stocks adjusted for technological change and then use these adjusted stocks to estimate Solow-type labor productivity equations. It is shown that replacing IDLIFT's former productivity equations, based on changes in output and time trends, with the new equations, results in a convergence between the dynamic behavior of the
model and that predicted by traditional (Solowian) production theory.
Is Embodied Technology the Result of Upstream R&D? Industry-Level Evidence
Review of Economic Dynamics 5(2), April 2002, 285-317
This paper provides an exploratory analysis of whether data on the research and development (R&D) spending directed at particular technological/product fields can be used to measure industry-level capital-embodied technological change. Evidence from the patent literature suggests that the R&D directed at a product, as the main input into the "innovation" production function, is proportional to the value of the innovations in that product. I confirm this hypothesis by showing that the decline in the relative price of a good is positively correlated with the R&D directed at that product. The hypothesis implies that the technological change, or innovation, embodied in an industry's capital is proportional to the R&D that is done ("upstream") by the economy as a whole on each of the capital goods that a ("downstream") industry purchases. Using R&D data from the National Science Foundation, I construct measures of capital-embodied R&D. I find they have a strong effect on conventionally measured total-factor productivity growth, a phenomenon that seems to be due partly to the mismeasurement of quality change in the capital stock and partly to a positive correlation between embodied and disembodied technological change. Finally, I find the cross-industry variation in empirical estimates of embodied technological change accord with the cross-industry variation in embodied R&D.
Estimating Returns to Scale: Lo, Still No Balance
Journal of Macroeconomics 22(2), Spring 2000, 285-314
Using detailed data and a unique instrument set, estimates of returns to scale in U.S. manufacturing were obtained at various levels of aggregation. With a few key exceptions, empirical puzzles previously found are confirmed and further investigated. One implication of these findings is that there is essentially no evidence of large increasing returns necessary in many recent macro models. Also, the finding of significant heterogeneity among 4-digit sectors casts doubt on the use of the representative firm paradigm in macroeconomic modeling. These results suggest the presence of vast reallocation effects among firms within sectors, manifesting itself as decreasing returns.
Roads to Prosperity or Bridges to Nowhere? Theory and Evidence on the Impact of Public Infrastructure Investment
Forthcoming in NBER Macroeconomics Annual
Forthcoming in International Encyclopedia of Social Sciences
State Investment Tax Incentives: A Few Facts
State Tax Notes 43(8), 2007 :: With Chirinko
State Investment Tax Incentives: What Are the Facts?
Proceedings of the 99th Annual Conference on Taxation, 2007 :: With Chirinko
There is an ongoing debate in the U.S. among policymakers and the courts concerning the practical effects of state investment tax incentives. However, this debate often suffers from a lack of clear information on the extent of such incentives among states and how these incentives have evolved over time. This paper takes a first step toward addressing this shortcoming. Compiling information from all 50 states and the District of Columbia over the past 40 years, we are able to paint a picture of the variation in state investment tax incentives across states and over time. In particular, we document three stylized facts: (1) Over the last 40 years, state investment tax incentives have become increasingly large and increasingly common among states; (2) these incentives, as well as the level of the overall after-tax price of capital, are to a large extent clustered in certain regions of the country; and (3) states that enact investment tax credits tend to do so around the same time as their neighboring states.
What Do We Know about the Interstate Economic Effects of State Tax Incentives?
Georgetown Journal of Law and Public Policy 4(1), Winter 2006, 133-164 :: With Stark
Over the last few decades, state and local governments increasingly have adopted tax and other policies to encourage economic development within their borders. These programs have recently come under attack as potentially inconsistent with the U.S. Supreme Court's dormant Commerce Clause jurisprudence. In an opinion issued in late 2004, the Sixth Circuit Court of Appeals invalidated Ohio's investment tax credit, contending that it discriminates against interstate commerce. The U.S. Supreme Court has granted certiorari in the case. In the meantime, similar litigation is underway in other states. In reaction to these developments, legislation has been introduced in Congress to protect the right of states to provide tax incentives. To shed light on the issues involved in these ongoing controversies, we offer an introduction to existing research concerning the economic effects of state tax incentives. There is a voluminous literature concerning the efficacy of state business subsidies. Surprisingly, however, very few econometric studies have examined the multistate impact of tax credits for physical investment (for example, the investment tax credit) or research and development (R&D tax credits). This focus may be due in part to the fact that, up until now, the issue was primarily one for state and local policymakers. Yet the interstate economic effects have significance for the Commerce Clause analysis of state tax incentives. Our goal is to provide a general introduction to these issues and to shed some light on the complexities involved in evaluating interstate economic effects.
Capital-Embodied Technological Change: Measurement and Productivity Effects
Ph.D. Dissertation, University of Maryland, May 2001
This thesis develops new methods for measuring capital-embodied
technological change and its effects on productivity. Rates of embodied technological change are necessary to properly measure the productive stock of capital. Results from the hedonic pricing literature have been used for this purpose, though not without controversy.
In this dissertation, I first develop an alternative, production-side approach to
estimating embodied technological change. The method exploits the large variation in plant-level investment histories available in the Longitudinal Research Database at the U.S. Census Bureau. The empirical results show that the rate of embodied technological change (or, equivalently, obsolescence) in U.S. manufacturing from 1972-96 is between 7 and 17 percent. Any number in this range is substantially larger than price-based estimates.
A method of measuring embodied technological change via data on research
and development (R&D) is also developed. I propose an index that captures the amount of R&D embodied in an industry's capital. Combining (and adjusting) data from the National Science Foundation and the Commerce Department, I construct a weighted average of the R&D done on the equipment capital that an industry purchases for 62 industries that span the U.S. private economy.
I find that the mean level of embodied R&D over 1972-96 is positively and
significantly correlated with the estimates of embodied technological change that I obtained in the first part of the dissertation. Furthermore, embodied R&D has a positive and significant effect on conventionally-measured total factor productivity growth (as one would expect if conventionally-measured capital stocks do not account for embodied technology).
Estimates of embodied technological change are used to construct
quality-adjusted measures of capital for the purpose of estimating industry-level labor productivity equations. These equations are incorporated into a full structural input-output forecasting model. Finally, the model's behavior in response to shocks in investment is analyzed.