.. _sphx_glr_auto_examples_extensions:

Extension Examples
==================

Examples demonstrating extensions from the original BAM model
(Delli Gatti et al., 2011).

These examples reproduce research extensions from the BAM book:

* **Growth+ Model**: R&D investment and endogenous productivity growth.
  Demonstrates how to create custom roles and events to extend BAM Engine.
* **Consumption and Buffer Shock**: Household consumption shocks and savings buffer dynamics
* **Parameter Space Exploration**: Systematic exploration of model sensitivity to key parameters
* **Preferential Attachment**: Preferential attachment in consumption and firm entry mechanisms

Each example includes detailed explanations of the economic mechanisms and
comparison with results from the original literature.

Note: The Growth+ example is a simplified demonstration focused on teaching
how to create custom extensions. For full validation with target bounds and
statistical annotations, run:

.. code-block:: bash

   python -m validation.scenarios.growth_plus



.. raw:: html

    <div class="sphx-glr-thumbnails">

.. thumbnail-parent-div-open

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    <div class="sphx-glr-thumbcontainer" tooltip="This example implements the Growth+ extension from chapter 3.8 of Macroeconomics from the Bottom-up, demonstrating endogenous productivity growth based on R&amp;D investment.">

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  .. image:: /auto_examples/extensions/images/thumb/sphx_glr_example_growth_plus_thumb.png
    :alt:

  :doc:`/auto_examples/extensions/example_growth_plus`

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      <div class="sphx-glr-thumbnail-title">Growth+ Model Extension</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="This example implements the buffer-stock consumption extension from Section 3.9.4 of Macroeconomics from the Bottom-up, replacing the baseline mean-field MPC with an individual adaptive rule based on buffer-stock saving theory.">

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  .. image:: /auto_examples/extensions/images/thumb/sphx_glr_example_buffer_stock_thumb.png
    :alt:

  :doc:`/auto_examples/extensions/example_buffer_stock`

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      <div class="sphx-glr-thumbnail-title">Buffer-Stock Consumption Extension</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="This example demonstrates robustness analysis inspired by Section 3.10 of Macroeconomics from the Bottom-up (Delli Gatti et al., 2011).">

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  .. image:: /auto_examples/extensions/images/thumb/sphx_glr_example_robustness_thumb.png
    :alt:

  :doc:`/auto_examples/extensions/example_robustness`

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      <div class="sphx-glr-thumbnail-title">Robustness Analysis</div>
    </div>


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    </div>


.. toctree::
   :hidden:

   /auto_examples/extensions/example_growth_plus
   /auto_examples/extensions/example_buffer_stock
   /auto_examples/extensions/example_robustness