There is no contradictory information presented in paragraph 2. All information confirms the earlier discussion.
In paragraph 2, the article states that recessions do not have long-term effects, contradicting information discussed the recessions in paragraph 1.
In paragraph 2, the article discusses the decline in birth rate in the 1920s, a time when the economy was growing rapidly, contradicting information presented in paragraph 1 about the connection between birth rate and economic decline.
Paragraph 2 discusses the ramifications of low birth rates and the labor force, contradicting an information presented about the replacement level in fertility rates in paragraph 1.