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PASS · 2023年09月12日

不太理解這句講的意思

NO.PZ2021101401000009

问题如下:

Yuen and Ruckey design a Benchmark Portfolio (A) and a Risk Parity Portfolio (B), and then run two simulation methods (the historical simulation and Monte Carlo simulation) to generate investment performance data based on the underlying nine factor portfolios.

Historical simulation differs from Monte Carlo simulation in that:

选项:

A.

it is deterministic.

B.

a functional form of the statistical distribution for each decision variable needs to be specified.

C.

it assumes that sampling the returns from the actual data provides sufficient guidance about future asset returns.

解释:

C is correct. Historical simulation assumes that past asset returns provide sufficient guidance about future asset returns.

A is incorrect because both approaches are non-deterministic and random in nature.

B is incorrect because in historical simulation each random variable of interest (key driver and/or decision variable) is randomly drawn from historical data. A functional form of the statistical distribution of returns for each decision variable needs to be specified for a Monte Carlo simulation.

 A functional form of the statistical distribution of returns for each decision variable needs to be specified for a Monte Carlo simulation.

1 个答案

星星_品职助教 · 2023年09月13日

同学你好,

本句意为:对于蒙特卡洛模拟中的变量,做模拟前需要对其预先设定分布。

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