Tiny Consumption-Savings

A minimal two-regime consumption-savings model with working life and retirement. Three periods, discrete labor supply, log-spaced consumption grid, and a simple tax-and-transfer system that guarantees a consumption floor.

This is the simplest complete model in lcm_examples and a good starting point for learning the pylcm API.

View source on GitHub

Usage¶

import numpy as np
import pandas as pd
from lcm_examples.tiny import get_model, get_params

model = get_model()
params = get_params()

initial_df = pd.DataFrame(
    {
        "regime": "working_life",
        "age": model.ages.values[0],
        "wealth": np.linspace(1, 20, 100),
    }
)

result = model.simulate(
    params=params,
    initial_conditions=initial_df,
    period_to_regime_to_V_arr=None,
)

df = result.to_dataframe(additional_targets="all")