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McCall test fix #710

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Merged
jstac merged 1 commit into from
Nov 16, 2025
Merged

McCall test fix #710

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20 changes: 10 additions & 10 deletions lectures/mccall_model.md
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Original file line number Diff line number Diff line change
Expand Up @@ -465,8 +465,8 @@ def compute_reservation_wage(
v = v_next
i += 1

res_wage = (1 - β) * (c + β * v @ q)
return v, res_wage
w_bar = (1 - β) * (c + β * v @ q)
return v, w_bar
```

The cell computes the reservation wage at the default parameters
Expand All @@ -475,8 +475,8 @@ The cell computes the reservation wage at the default parameters
model = McCallModel()
c, β, w, q = model
v_init = w / (1 - β) # initial guess
v, res_wage = compute_reservation_wage(model, v_init)
print(res_wage)
v, w_bar = compute_reservation_wage(model, v_init)
print(w_bar)
```

### Comparative Statics
Expand Down Expand Up @@ -569,8 +569,8 @@ def compute_res_wage_jitted(
final_state = jax.lax.while_loop(cond, update, initial_state)
v, i, error = final_state

res_wage = (1 - β) * (c + β * v @ q)
return v, res_wage
w_bar = (1 - β) * (c + β * v @ q)
return v, w_bar
```

Now we compute the reservation wage at each $c, \beta$ pair.
Expand All @@ -587,9 +587,9 @@ v_init = model.w / (1 - model.β)
for i, c in enumerate(c_vals):
for j, β in enumerate(β_vals):
model = McCallModel(c=c, β=β)
v, res_wage = compute_res_wage_jitted(model, v_init)
v, w_bar = compute_res_wage_jitted(model, v_init)
v_init = v
res_wage_matrix[i, j] = res_wage
res_wage_matrix[i, j] = w_bar

fig, ax = plt.subplots()
cs1 = ax.contourf(c_vals, β_vals, res_wage_matrix.T, alpha=0.75)
Expand Down Expand Up @@ -917,8 +917,8 @@ res_wages_volatility = []
for σ in σ_vals:
μ = compute_μ_for_mean(σ, mean_wage)
model = create_mccall_continuous(σ=float(σ), μ=float(μ))
res_wage = compute_reservation_wage_continuous(model)
res_wages_volatility.append(res_wage)
w_bar = compute_reservation_wage_continuous(model)
res_wages_volatility.append(w_bar)

res_wages_volatility = jnp.array(res_wages_volatility)
```
Expand Down
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