{'fraction_non_alphanumeric': 0.022641509433962263, 'fraction_numerical': 0.0037735849056603774, 'mean_word_length': 5.471544715447155, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Heterogeneous Dynasties and Long-Run Mobility


 Recent empirical work has demonstrated a positive correlation between grandparent-child wealth-rank, even after controlling for parent-child wealth-rank, and a positive correlation between dynastic wealth-ranks across almost 600 years. We show that a simple heterogeneous agents model with idiosyncratic wealth returns generates a realistic wealth distribution but fails to capture these long-run patterns of wealth mobility. An auto-correlated returns specification of this model also fails to capture both short and long-run mobility. However, an extension of the heterogeneous agents model which includes permanent heterogeneity in wealth returns is able to simultaneously match the wealth distribution and short- and long-run wealth mobility.