人民银行调统司有一份报告，里面对中国的影子银行作了定义和分类。那份报告你在cnki上面搜得到。但我记得那份报告写得很枯燥，但对你下定义完全够了。标准普尔和旧金山美联储都在今年出了关于中国影子银行的报告，我觉得这两份报告是写得最有水平的。

kan kan

我来了解了解。

Perry Mehrling, Columbia University, defines shadow banking as “money market funding of capital market lending.”  This may or may not include banks.
Paul McCulley, PIMCO, defines it as “securitization-basedprivate money creation without a public backstop.”
影子银行的界定：


The modern shadow banking system, at its core, bears a surprising resemblance to the 19th
century
world that Walter Bagehot helped us to understand in his magisterial book Lombard Street:  A
Description of the [London] Money Market (1873).  At the heart of both worlds is the wholesale money
market, and operating as crucial liquidity backstop in both worlds is the central bank.  At the time
Bagehot was writing, this backstop function was not yet fully understood, much less accepted; much the
same could be said of the central bank’s backstop of the shadow banking system today.   

Is Shadow Banking Really Banking?
By Bryan J. Noeth and Rajdeep Sengupta

The term "shadow banking" has been attributed to 2007 remarks by economist and money manager Paul McCulley to describe a large segment of financial intermediation that is routed outside the balance sheets of regulated commercial banks and other depository institutions. Shadow banks are defined as financial intermediaries that conduct functions of banking "without access to central bank liquidity or public sector credit guarantees." 1 As shown in Figure 1, the size of the shadow banking sector was close to $20 trillion at its peak and shrank to about $15 trillion last year, making it at least as big as, if not bigger than, the traditional banking system.2 Given its size and role in the financial crisis, it would be useful to understand the mechanics of shadow banking. To do so, some basics of traditional banking need to be understood first.

Figure 1
Shadow Bank vs. Traditional Bank Liabilities

Shadow Bank vs. Traditional Bank Liabilties