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 Christian Manifesto urges Christians to accept the new communist reality, rather than to denounce their faith. The manifesto adopts the propagandistic language of the Chinese revolution resulting in overly optimistic and naive terms. It however failed to give the Chinese church any guidance concerning its future in China under the CPC. The manifesto implied that compliance would be rewarded and Chinese Christianity would prosper. In truth, the government would soon engage in persecution of many Christians. The manifesto was intended for both domestic and foreign audiences. The covering letter accompanying it states that its target audience is people outside the church and