{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"710a6008-e1d9-4f44-8c08-1e6f9980e8a5","title":"第二次机器革命","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787508647210","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"710a6008-e1d9-4f44-8c08-1e6f9980e8a5","id":"710a6008-e1d9-4f44-8c08-1e6f9980e8a5","uuid":"710a6008-e1d9-4f44-8c08-1e6f9980e8a5","title":"第二次机器革命","normalized_title":"第二次机器革命","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787508647210","isbns":["9787508647210","0120137135"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":329,"navigation_url":"https://workshop.closeclaw.top/ai/book/710a6008-e1d9-4f44-8c08-1e6f9980e8a5","title_url":"https://workshop.closeclaw.top/ai/title/%E7%AC%AC%E4%BA%8C%E6%AC%A1%E6%9C%BA%E5%99%A8%E9%9D%A9%E5%91%BD","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/710a6008-e1d9-4f44-8c08-1e6f9980e8a5/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/710a6008-e1d9-4f44-8c08-1e6f9980e8a5/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/710a6008-e1d9-4f44-8c08-1e6f9980e8a5","page_url":"https://workshop.closeclaw.top/api/ai/books/710a6008-e1d9-4f44-8c08-1e6f9980e8a5/page","search_url":"https://workshop.closeclaw.top/api/ai/books/710a6008-e1d9-4f44-8c08-1e6f9980e8a5/search"},"page":{"printed_page":152,"pdf_page":180,"physical_index":180,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"0f32b1a94d7058bb9417f85d07234309decfcce59034ec6f065dccb54624b4ee"},"chapter":"第15章 技术与未来：命运由我们自己塑造","content":"如果你拿平均收入和中位数收入比较一下，就能很容易看出来，正常情况下，平均收入（全部收入除以所有人口）的变化和中位数收入（在收入分配体系中中间阶层的收入水平有一半比他们收入多，另一半比他们收入少）的变化有着很大的不同。而在最近一些年，这种趋势已经明显分化了，正像图9-1所显示的。\n\n这是怎么发生的呢？让我们来思考一个简单的例子。有10位银行职员在一间酒吧里喝啤酒。他们每个人一年能够挣到3万美元，因此，他们几个人的平均收入和中位数收入都是3万美元。这时走进来一位首席执行官，他也点了一杯啤酒。现在，他们这个群体的收入立刻飙升起来，但中位数收入却没有发生变化。一般情况下，收入水平越不平衡，平均收入就越偏离中位数收入。这种情况不仅发生在我们假设的酒吧里，在整个美国也是这样。\n\nTHE SECOND MACHINE AGE→第二次机器革命→\n\n152","previous_page":151,"next_page":153}