NBER Working Paper Series
Опубликовано на портале: 19-10-2004Daniel R. Feenberg, James Michael Poterba NBER Working Paper Series. 1993. No. 4229.
This paper uses tax return data for the period 1951-1990 to investigate the rising share of adjusted gross income (AGI) that is reported on very high income tax returns. We find that most of the increase in the share of AGI reported by high-income taxpayers is due to an increase in reported income for the one quarter of one percent of taxpayers with the highest AGIs. The share of total AGI reported by these taxpayers rose slowly in the early 1980s, and increased sharply in 1987 and 1988. This pattern suggests that at least part of the increase in the income share of high-AGI taxpayers was due to the changing tax incentives that were enacted in the 1986 Tax Reform Act. By lowering marginal tax rates on top-income households from 50% to 28%, TRA86 reduced the incentive for these households to engage in tax avoidance activities. We also find substantial differences in the growth of the income share of the highest one quarter of one percent of taxpayers, and the share of other very high income taxpayers. This suggests that the increasing inequality of reported incomes at very high levels may not be driven by the same factors that have generated widening wage inequality throughout the income distribution and over a longer time period.
Modern Hyper- and High Inflations [статья]
Опубликовано на портале: 16-12-2005Stanley Fisher, Ratna Sahay, Carlos A. Vegh NBER Working Paper Series. 2002. P. 8930.
Since 1947, hyperinflations (by Cagan's definition) in market economies have been rare. Much more common have been longer inflationary processes with inflation rates above 100 percent per annum. Based on a sample of 133 countries, and using the 100 percent threshold as the basis for a definition of very high inflation episodes, this paper examines the main characteristics of such inflations. Among other things, we find that (i) close to 20 percent of countries have experienced inflation above 100 percent per annum; (ii) higher inflation tends to be more unstable; (iii) in high inflation countries, the relationship between the fiscal balance and seigniorage is strong both in the short and long-run; (iv) inflation inertia decreases as average inflation rises; (v) high inflation is associated with poor macroeconomic performance; and (vi) stabilizations from high inflation that rely on the exchange rate as the nominal anchor are expansionary.
Опубликовано на портале: 05-10-2004Charles M. Engel NBER Working Paper Series. 2000. No. 7889.
This paper examines optimal exchange-rate policy in two-country sticky-price general equilibrium models in which households and firms optimize over an infinite horizon in an environment of uncertainty. The models are in the vein of the new open-economy macroeconomics' as exemplified by Obstfeld and Rogoff (1995, 1998, 2000). The conditions under which fixed or floating exchange rates yield higher welfare depend on the exact nature of price stickiness and on the degree of risk-sharing opportunities. This paper presents some preliminary empirical evidence on the behavior of consumer prices in Mexico that suggests failures of the law of one price are important. The evidence on price setting and risk-sharing opportunities is not refined enough to make definitive conclusions about the optimal exchange-rate regime for that country.
Опубликовано на портале: 13-04-2004John Y. Campbell, Pierre Perron NBER Working Paper Series. 1991. Vol. 6.
This paper is an introduction to unit root econometrics as applied in macroeconomics. The paper first discusses univariate time series analysis, emphasizing the following topic: alternative representations of unit root processes, unit root testing procedures, the power unit root tests, and the interpretation of unit root econometrics in finite samples. A second part of the paper tackles similar issues in a multivariate context where cointegration is now the central concept. The paper reviews representation, testing, and estimation of multivariate time series models with some unit roots. Two important themes of this paper are first, the importance of correctly specifying deterministic components of the series; and second, the usefulness of unit root tests not as method to uncover some "true relation" but as practical devices that can be used to impose reasonable restrictions on the data and to suggest what asymptotic distribution theory gives the best approximation to the finite-sample distribution of coefficient estimates and test statistics.