This paper proposes latent factor models for multidimensional panels called 3D-PCA. Factor weights are constructed from a small set of dimension-specific building blocks, which give rise to proportionality restrictions of factor weights. While the set of feasible factors is restricted, factors...

Sparse models, though long preferred and pursued by social scientists, can be ineffective or unstable relative to large models, for example, in economic predictions (Giannone et al., 2021). To achieve sparsity for economic interpretation while exploiting big data for superior empirical...

This paper proposes a new approach to the "factor zoo" conundrum. Instead of applying dimension-reduction methods to a large set of portfolios obtained from sorts on characteristics, I construct factors that summarize the information in characteristics across assets and then sort assets into...

We propose a new measure of the rate of poverty we call the Supplemental Expenditure Poverty Measure (SEPM) based on expenditure in the Consumer Expenditure survey. It treats household expenditure as a measure of resources available to purchase the minimum bundle necessary to meet basic needs....

Using friendship data from Facebook, we study the effects of three aspects of social capital on household financial behavior. We find that the most important measure of social capital in explaining stock market and saving participation is Economic Connectedness, defined as the fraction of one's...

We provide a method to measure welfare, in money-metric terms, taking into account expectations about the future. Our two key assumptions are that (1) the expenditure function is separable between the present and the future, and (2) there are some households that do not face idiosyncratic...

Children represent the largest indirect beneficiaries of the U.S. social welfare system. Yet, many questions remain about the direct benefits of cash aid to children. The current understanding of the impacts of cash aid in the U.S. is drawn primarily from studies of in-kind benefits, tax...

We examine the effects of an unconditional cash transfer on the economic wellbeing (material hardship, ability to meet needs, money on hand, use of friends and family for assistance, and employment) of families and children with very low incomes. We use a parameterized difference-in-differences...

The mental health of the elderly in low- and middle-income countries (LMICs) is a largely neglected subject, both by policy and research. We combine data from the health and retirement family of surveys in seven LMICs (plus the US) to document that depressive symptoms among those aged 55 and...

Burnout of physicians and other medical personnel is a major problem in the economics of healthcare systems, potentially costing billions of dollars. Knowledge of the determinants and costs of burnout at the organization level is sparse, making it difficult to assess the net benefits of...