Business cycle by Charles Dunoyer, and similar theories, showing signs of influence by Sismondi, were developed by Johann Karl Rodbertus. Periodic crises in capitalism formed the basis of the theory of Karl Marx, who further claimed that these crises were increasing in severity and, on the basis of which, he predicted a communist revolution. Though only passing references in "Das Kapital" (1867) refer to crises, they were extensively discussed in Marx's posthumously published books, particularly in "Theories of Surplus Value". In "Progress and Poverty" (1879), Henry George focused on land's role in crises – particularly land speculation – and proposed a single
The Communist Manifesto good library, not to mention the internet, can have access to it." The 150th anniversary once again brought a deluge of attention in the press and the academia, as well as new editions of the book fronted by introductions to the text by academics. One of these, "The Communist Manifesto: A Modern Edition" by Verso, was touted by a critic in the "London Review of Books" as being a "stylish red-ribboned edition of the work. It is designed as a sweet keepsake, an exquisite collector's item. In Manhattan, a prominent Fifth Avenue store put copies of this choice new edition