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MMLU-Pro / 7065 / What is the most important disadvantage of the diagonal VECH approach to…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

What is the most important disadvantage of the diagonal VECH approach to building multivariate GARCH models that is overcome by the BEKK formulation?

category

economics

options

  1. The diagonal VECH model does not provide accurate forecasts
  2. The diagonal VECH model is hard to interpret intuitively
  3. The diagonal VECH model contains too many parameters
  4. The BEKK model does not have the flexibility of the diagonal VECH model
  5. The BEKK model does not ensure a positive-definite variance-covariance matrix
  6. The diagonal VECH model does not allow for multivariate time series analysis
  7. The diagonal VECH model is not suitable for large datasets
  8. The BEKK model reduces the dimensionality problem that arises when a number of series are modelled together.
  9. The BEKK model is more computationally intensive than the diagonal VECH model
  10. The diagonal VECH model does not ensure a positive-definite variance-covariance matrix

src

ori_mmlu-econometrics

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Source and history

upstream_id / Original problem ID
7065
task_id
106784aa-f15c-5b39-b8f8-ceede38a2af1
task_key
default--test--7065
task_revision_id
1
config / split
default / test

Official source

initial import