.. _attribution_methodologies_ref:

Attribution Methodologies
==========================

The two attribution methodologies supported by the engine (see :ref:`methodology` for the
conceptual background), the configurator/input-handler contracts they build on, and the
returns entities they share.

What you'll find here:

- :ref:`attribution_methodologies_brinson_fachler_ref` – abstract interface and concrete
  percent/arrow implementations
- :ref:`attribution_methodologies_factor_model_ref` – abstract interface and concrete
  percent/arrow implementations, plus factor-returns loading and synthetic exposures
- :ref:`attribution_methodologies_returns_ref` – return time-series entities shared by both
  methodologies

.. toctree::
   :maxdepth: 2
   :hidden:

   attribution_methodologies/brinson_fachler
   attribution_methodologies/factor_model
   attribution_methodologies/returns