12 resultater (0,25165 sekunder)

Mærke

Butik

Pris (EUR)

Nulstil filter

Produkter
Fra
Butikker

Night Thoughts of a Classical Physicist - Russell Mccormmach - Bog - Harvard University Press - Plusbog.dk

Night Thoughts of a Classical Physicist - Russell Mccormmach - Bog - Harvard University Press - Plusbog.dk

It is the end of an historical epoch, but to an old professor of physics, Victor Jakob, sitting in his unlighted study, eating dubious bread with jam made from turnips, it is the end of a way of thinking in his own subject. Younger men have challenged the classical world picture of physics and are looking forward to observational tests of Einstein’s new theory of relativity as well as the creation of a quantum mechanics of the atom. It is a time of both apprehension and hope. In this remarkable book, the reader literally inhabits the mind of a scientist while Professor Jakob meditates on the discoveries of the past fifty years and reviews his own life and career—his scientific ambitions and his record of small successes. He recalls the great men who taught or inspired him: Helmholtz, Hertz, Maxwell, Planck, and above all Paul Drude, whose life and mind exemplified the classical virtues of proportion, harmony, and grace that Jakob reveres. In Drude’s shocking and unexpected suicide, we see reflected Jakob’s own bewilderment and loss of bearings as his once secure world comes to an end in the horrors of the war and in the cultural fragmentation wrought by twentieth-century modernism. His attempt to come to terms with himself, with his life in science, and with his spiritual legacy will affect deeply everyone who cares about the fragile structures of civilization that must fall before the onrush of progress.

DKK 316.00
1

Consumption Behavior and the Effects of Government Fiscal Policies - Randall P. Mariger - Bog - Harvard University Press - Plusbog.dk

Consumption Behavior and the Effects of Government Fiscal Policies - Randall P. Mariger - Bog - Harvard University Press - Plusbog.dk

In Consumption Behavior and the Effects of Government Fiscal Policies, Randall Mariger explores how people make decisions about how much to consume and save over their lifetimes. An understanding of these issues illuminates not only individual behavior but important properties of the macro economy as well. The most popular framework for analyzing consumption has been the life-cycle theory. Mariger tests two fundamental, and controversial, assumptions underlying the theory—that there are no planned bequests and that human capital is marketable. To do this, he fits a structural consumption model that incorporates endogenous liquidity constraints (non-marketability of human capital), but no planned bequests, to data on a cross-section of U. S. families. This estimated model, in conjunction with estimates of alternative models, enables him to make inferences about the respective effects of liquidity constraints and social security wealth on consumption. This latter effect yields indirect evidence concerning planned bequests. Mariger also presents direct evidence concerning bequest behavior. Among his findings are that the model fits the data very well in spite of its tight theoretical structure; that liquidity constraints are prevalent and have important effects on consumption behavior; that planned bequests appear not to be common among families in the lower 99.1% of the wealth distribution; and that families in the upper 0.9% of the wealth distribution appear to plan substantial bequests. Mariger devotes the latter part of his book to studying the implications of his estimated consumption model for the effects of government fiscal policies. More specifically, he simulates the model to infer the effects of government tax/debt policy, as well as those of the social security system, on aggregate savings.

DKK 425.00
1