def test_ConsIndShockSolverBasic(self):
LifecycleExample = IndShockConsumerType(**init_lifecycle)
LifecycleExample.cycles = 1
LifecycleExample.solve()
# test the solution_terminal
self.assertAlmostEqual(LifecycleExample.solution[-1].cFunc(2).tolist(),
2)
self.assertAlmostEqual(LifecycleExample.solution[9].cFunc(1),
0.79429538)
self.assertAlmostEqual(LifecycleExample.solution[8].cFunc(1),
0.79391692)
self.assertAlmostEqual(LifecycleExample.solution[7].cFunc(1),
0.79253095)
self.assertAlmostEqual(LifecycleExample.solution[0].cFunc(1).tolist(),
0.7506184692092213)
self.assertAlmostEqual(LifecycleExample.solution[1].cFunc(1).tolist(),
0.7586358637239385)
self.assertAlmostEqual(LifecycleExample.solution[2].cFunc(1).tolist(),
0.7681247572911291)
solver = ConsIndShockSolverBasic(
LifecycleExample.solution[1],
LifecycleExample.IncShkDstn[0],
LifecycleExample.LivPrb[0],
LifecycleExample.DiscFac,
LifecycleExample.CRRA,
LifecycleExample.Rfree,
LifecycleExample.PermGroFac[0],
LifecycleExample.BoroCnstArt,
LifecycleExample.aXtraGrid,
LifecycleExample.vFuncBool,
LifecycleExample.CubicBool,
)
solver.prepare_to_solve()
self.assertAlmostEqual(solver.DiscFacEff, 0.9586233599999999)
self.assertAlmostEqual(solver.PermShkMinNext, 0.6554858756904397)
self.assertAlmostEqual(solver.cFuncNowCnst(4).tolist(), 4.0)
self.assertAlmostEqual(solver.prepare_to_calc_EndOfPrdvP()[0],
-0.19792871012285213)
self.assertAlmostEqual(solver.prepare_to_calc_EndOfPrdvP()[-1],
19.801071289877118)
EndOfPrdvP = solver.calc_EndOfPrdvP()
self.assertAlmostEqual(EndOfPrdvP[0], 6657.839372100613)
self.assertAlmostEqual(EndOfPrdvP[-1], 0.2606075215645896)
solution = solver.make_basic_solution(EndOfPrdvP, solver.aNrmNow,
solver.make_linear_cFunc)
solver.add_MPC_and_human_wealth(solution)
self.assertAlmostEqual(solution.cFunc(4).tolist(), 1.0028005137373956)
# %% [markdown]
# Let us then create a solver for the first period.
# %%
from HARK.ConsumptionSaving.ConsIndShockModel import ConsIndShockSolverBasic
solver = ConsIndShockSolverBasic(
LifecycleExample.solution[1], LifecycleExample.IncShkDstn[0],
LifecycleExample.LivPrb[0], LifecycleExample.DiscFac,
LifecycleExample.CRRA, LifecycleExample.Rfree,
LifecycleExample.PermGroFac[0], LifecycleExample.BoroCnstArt,
LifecycleExample.aXtraGrid, LifecycleExample.vFuncBool,
LifecycleExample.CubicBool)
# %%
solver.prepare_to_solve()
# %% [markdown]
# Many important values are now calculated and stored in solver, such as the effective discount factor, the smallest permanent income shock, and more.
# %%
solver.DiscFacEff
# %%
solver.PermShkMinNext
# %% [markdown]
# These values were calculated in `setAndUpdateValues`. In `defBoroCnst` that was also called, several things were calculated, for example the consumption function defined by the borrowing constraint.
# %%
plot_funcs([solver.cFuncNowCnst], solver.mNrmMinNow, 10)