Nonlinear Hierarchical Effects of Housing Prices and Built Environment Based on Multiscale Life Circle—A Case Study of Chengdu https://uifnhvpettbbh5.wikicorrespondence.com/4843800/nonlinear_hierarchical_effects_of_housing_prices_and_built_environment_based_on_multiscale_life_circle_a_case_study_of_chengdu