His book "Structural Slumps", published in 1994, is an ambitious attempt to provide a general theory of how the natural rate of unemployment evolves.

在他于1994年出版的《结构性低迷》一书中，他雄心勃勃的试图给出一个自然率失业演化的一般理论。

youdao

The book traced a causal relationship between the rate of monetary growth and the price level.

这本书细致地描绘了货币供应变化和通胀的水平因果关系。

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But - as I described in my book, the Long and the Short of It - having a realistic target rate of return in your mind is an indispensable tool for the sophisticated investor.

但正如我在拙著《the Long and the Short of It》中所述，对于老练的投资者而言，心里有一个现实的目标回报率是一个不可或缺的工具。

youdao

A new book about America's public universities explores the complex causes of the high dropout rate.

VOA: special.2009.09.10

Almost twelve years later in August 2010, Amazon.co.uk introduced the revolutionary Kindle and began selling Kindle books to customers in the UK. By May 2011, Kindle book sales had surpassed hardcover book sales, at a rate of more than 2 to 1.

ENGADGET: Hold the presses! Amazon UK selling more e-books than printed ones

In fact, figures for 2012 show that while e-book sales are still on the rise, the rate of decline in print sales has actually slowed.

BBC: Do you have the write stuff to be a novelist?

With so much in the air regarding e-book sales (such as author royalties, size of market, rate of growth, etc) publishers are still running scared of e-books on the whole.

FORBES: The Top Selling Female E-book Authors