TY - JOUR A1 - Hammel, E. A. T1 - Chayanov revisited: A model for the economics of complex kin units Y1 - 2005 DO - 10.1073/pnas.0501987102 JF - PNAS--Proceedings of the National Academy of Sciences of the United States of America VL - 102 IS - 19 SP - 7043 EP - -7046 ER -