Despite the importance to researchers, managers, and policy makers of how information technology (IT) contributes to organizational performance, there is uncertainty and debate about what we know and don't know. A review of the literature reveals that studies examining the association between information technology and organizational performance are divergent in how they conceptualize key constructs and their interrelationships. We develop a model of IT business value based on the resource-based view of the firm that integrates the various strands of research into a single framework. We apply the integrative model to synthesize what is known about IT business value and guide future research by developing propositions and suggesting a research agenda. A principal finding is that IT is valuable, but the extent and dimensions are dependent upon internal and external factors, including complementary organizational resources of the firm and its trading partners, as well as the competitive and macro environment. Our analysis provides a blueprint to guide future research and facilitate knowledge accumulation and creation concerning the organizational performance impacts of information technology.

Review: information technology and organizational performance: an integrative model of it business value

We construct estimates of external assets and liabilities for 145 countries for the period 1970-2004. We describe our estimation methods and present key features of the data at the country and the global level. We focus on trends in net and gross external positions, and the composition of international portfolios, distinguishing between foreign direct investment, portfolio equity investment, official reserves, and external debt. We document the increasing importance of equity financing and the improvement in the external position for emerging markets, and the differing pace of financial integration between advanced and developing economies. We also show the existence of a global discrepancy between estimated foreign assets and liabilities, and identify the asset categories that account for this discrepancy.

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The External Wealth of Nations Mark Ii: Revised and Extended Estimates of Foreign Assets and Liabilities, 1970-2004

http://gabriel-zucman.eu/files/teaching/LaneMilesi07.pdf

The external wealth of nations mark II: Revised and extended estimates of foreign assets and liabilities, 1970–2004

This paper extends the class of stochastic volatility diffusions for asset returns to encompass Poisson jumps of time-varying intensity. We find that any reasonably descriptive continuous-time model for equity-index returns must allow for discrete jumps as well as stochastic volatility with a pronounced negative relationship between return and volatility innovations. We also find that the dominant empirical characteristics of the return process appear to be priced by the option market. Our analysis indicates a general correspondence between the evidence extracted from daily equity-index returns and the stylized features of the corresponding options market prices. MUCH ASSET AND DERIVATIVE PRICING THEORY is based on diffusion models for primary securities. However, prescriptions for practical applications derived from these models typically produce disappointing results. A possible explanation could be that analytic formulas for pricing and hedging are available for only a limited set of continuous-time representations for asset returns and risk-free discount rates. It has become increasingly evident that such "classical" models fail to account adequately for the underlying dynamic evolution of asset prices and interest rates. Not surprisingly, the inadequacy of these specifications also shows up in bond and derivatives pricing, where the standard representations falter systematically. For example, the BlackScholes pricing formula, although widely used by practitioners, is well known to produce pronounced and persistent biases in the pricing of options. Devi

/pdf/an-empirical-investigation-of-continuous-time-equity-return-3hlodksuv4.pdf

An empirical investigation of continuous-time equity return models

This paper examines the link between information technology (IT) and the U.S. productivity revival in the late 1990s. Industry-level data show a broad productivity resurgence that reflects both the production and the use of IT. The most IT-intensive industries experienced significantly larger productivity gains than other industries and a wide variety of econometric tests show a strong correlation between IT capital accumulation and labor productivity. To quantify the aggregate impact of IT-use and IT-production, a novel decomposition of aggregate labor productivity is presented. Results show that virtually all of the aggregate productivity acceleration can be traced to the industries that either produce IT or use IT most intensively, with essentially no contribution from the remaining industries that are less involved in the IT revolution.

/pdf/information-technology-and-the-u-s-productivity-revival-what-2y7jrbhl9a.pdf

Information Technology and the U.S. Productivity Revival: What Do the Industry Data Say?

This paper reports the results of a project to estimate and test the stability properties of conventional equations relating real imports and exports of goods and services for the G-7 countries to their incomes and relative prices. We begin by estimating cointegration vectors and the error-correction formulations. We then test the stability of these equations using Chow and Kalman-Filter tests. The evidence suggests three findings. First, conventional trade equations and elasticities are stable enough, in most cases, to perform adequately in forecasting and policy simulations. Equations for German trade, as well as equations for French and Italian exports, are an exception. Second, income elasticities of U.S. trade have not been shifting in a direction that will tend to ease the trend toward deterioration in the U.S. trade position. The income-elasticity gap for Japan found in earlier studies was not confirmed in this analysis. Finally, the price channel is weak, if not wholly ineffective, in the case of continental European countries.

/pdf/trade-elasticities-for-the-g-7-countries-3mympqydut.pdf

Trade Elasticities for the G-7 Countries

https://www.federalreserve.gov/pubs/ifdp/2002/727/ifdp727.pdf

International comparisons of productivity growth: the role of information technology and regulatory practices

This paper evaluates the hypothesis that globalization has increased the role of international factors and decreased the role of domestic factors in the inflation process in industrial economies. Towards that end, we estimate standard Phillips curve inflation equations for 11 industrial countries and use these estimates to test several predictions of the globalization and inflation hypothesis. Our results provide little support for this hypothesis. First, the estimated effect of foreign output gaps on domestic consumer price inflation is generally insignificant and often of the wrong sign. Second, we find no evidence that the trend decline in the sensitivity of inflation to the domestic output gap observed in many countries owes to globalization. Finally, and most surprisingly, our econometric results indicate no increase over time in the responsiveness of inflation to import prices for most countries.

/pdf/some-simple-tests-of-the-globalization-and-inflation-4en9c8atsg.pdf

Some Simple Tests of the Globalization and Inflation Hypothesis

This paper estimates income and price elasticities for bilateral world trade. In addition to testing the properties of the error terms, the dynamic specification, and the assumption of parameter constancy, the analysis presents the first application of the Bank Spectrum estimator to bilateral trade flows for all countries. The paper finds that bilateral trade elasticities exhibit enough of a dispersion to suggest that the direction of trade is sensitive to changes in income and prices. Using the bilateral elasticities as raw data, the analysis obtains the associated multilateral estimates and finds that they are both consistent with the literature and suitable to addressing questions involving multilateral trade. But the evidence also reveals that sole reliance on multilateral elasticities conceals valuable information for both policy applications and empirical analyses of international trade. Copyright 1990 by MIT Press.

Bilateral Trade Elasticities

This paper documents a sustained decline in exchange rate pass-through to U.S. import prices, from above 0.5 during the 1980s to somewhere in the neighborhood of 0.2 during the last decade. This decline in the pass-through coefficient is robust to the measure of foreign prices that is included in the regression (i.e., CPI versus PPI), whether the estimation is done in levels or differences, and whether U.S. prices are included as an explanatory variable. Notably, the largest estimates of pass-through are obtained when commodity prices are excluded from the regression. In this case, the pass-through coefficient captures both the direct effect of the exchange rate on import prices and an indirect effect operating through changes in commodity prices. Our work indicates that an increasing share of exchange rate pass-through has occurred through this commodity-price channel in recent years. While the source of the decline in pass-through is difficult to pin down with certainty, our work points to several factors, including the reduced share of (commodity-intensive) industrial supplies in U.S. imports and the increased presence of Chinese exporters in U.S. markets. We detect a particular step down in the pass-through coefficient around the time of the Asian financial crisis and document a shift in the export pricing behavior of emerging Asian firms around that time.

/pdf/exchange-rate-pass-through-to-u-s-import-prices-some-new-332izu9a9v.pdf

Jaime Marquez

Papers

Trade Elasticities for the G-7 Countries

International comparisons of productivity growth: the role of information technology and regulatory practices

Some Simple Tests of the Globalization and Inflation Hypothesis

Bilateral Trade Elasticities

Exchange Rate Pass-through to U.S. Import Prices: Some New Evidence