[mccall_model_with_separation] Update Exercises into Discussions

[HumphreyYang]

Hi @jstac, this PR updates the exercises into the discussions, but given @mmcky is working so fast in fixing glue, this PR might longer be necessory : )

[Copilot]

Pull Request Overview

This PR restructures the "Impact of Parameters" section of the McCall model with separation lecture by converting it from a presentation-first format (showing figures upfront) to an exercise-driven discussion format. The change enhances pedagogical value by having students generate and interpret the results themselves rather than viewing pre-made figures.

Key Changes:

• Removes three glue figure references that showed results before students attempted exercises
• Splits a single multi-part exercise into three separate, focused exercises (one for each parameter: unemployment compensation, discount factor, and separation rate)
• Moves interpretive discussion from before the exercises into the solution sections

[github-actions]

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[jstac]

Many thanks @HumphreyYang . Much appreciated.

I'll leave this with @mmcky .

[mmcky]

thanks @HumphreyYang -- appreciate your time putting this together.

Let me know if there are components of this we should keep.

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[HumphreyYang]

Hi @mmcky,

I reverted the exercise changes and did some stylesheet policing. I think it is ready to be merged!

Many thanks!

[jstac]

Thanks @HumphreyYang !

@mmcky , what is the policy regarding pip install jax in these lectures?

We need it for the downloads but will it cause trouble with the build? Please let me know as soon as you can.

[HumphreyYang]

Hi @jstac,

@mmcky and I had an discussion on this before. Installing JAX would not cause issue for the build because pipskip it when it is detected in the system!

Requirement already satisfied: jax in /home/runner/miniconda3/envs/quantecon/lib/python3.13/site-packages (0.8.0)

As long as we don't put -U, it would not reinstall JAX.

[jstac]

Thanks @HumphreyYang .

Is there an open issue to unify treatment of this across the lectures? We want files to execute on download in an anaconda-only setting.