Stationary dual prices and depreciation

Economic Optimization of the Reflux Ratio of Two Components Stage Distillation Columns

Distillation columns are complex processes for modeling and controlling. These columns are significant parts of most chemical industries for separation of components. Control of this process is essential for achieving certain purity for products with a minimum cost. However, nonlinearities, multivariable interaction, non-stationary behavior and severity of disturbances inside the column made th...

Age, Time, Depreciation and House Prices: A Hedonic Imputation Approach

The Measurement of Depreciation in the U.S. National Income and Product Accounts, July 1997 SCB

As part of the recent comprehensive revision of the ’s,  introduced an improved methodology for calculating depreciation. The improved methodology uses empirical evidence on the prices of used equipment and structures in resale markets, which has shown that depreciation for most types of assets approximates a geometric pattern. Previously, the depreciation estimates were derived using st...

Does a Fall in the Dollar Mean Higher U.S. Consumer Prices?

This Economic Letter looks at the relationship among changes in the exchange rate value of the dollar and in import prices and overall consumer prices, with a particular focus on the current circumstances. It appears that the lower value of the dollar at this point is affecting U.S. prices less than it has historically.The reasons for the difference include changes in trading partners, changes ...

Finance and Macroeconomics

Three of the papers examine the relationship between financial asset valuations and macroeconomic fundamentals. Hall tries to account for corporate equity valuations using fundamentals such as taxes, risk, and depreciation with mixed results. Bernanke and Kuttner also examine the fundamental determinants of equity prices, but they focus only on monetary policy surprises, which appear to have a ...