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how network structure influences information aggregation. We develop a model of semi-Bayesian learning on networks, which …
Persistent link: https://www.econbiz.de/10012460309
, aggregation issues are considered. First, the paper presents a number of negative results. Then, several simulations aimed at …
Persistent link: https://www.econbiz.de/10012473593
aggregation of stochastically heterogeneous units. In particular, I provide a simple characterization of the effects of …
Persistent link: https://www.econbiz.de/10012475257
studies using more aggregated data. We demonstrate directly that higher levels of spatial and temporal aggregation generate …
Persistent link: https://www.econbiz.de/10012456331
consumption is affected when one uses data recorded at higher levels of aggregation. We find that aggregating detailed firm …
Persistent link: https://www.econbiz.de/10013537782
A forecasting comparison is undertaken in which 49 univariate forecasting methods, plus various forecast pooling procedures, are used to forecast 215 U.S. monthly macroeconomic time series at three forecasting horizons over the period 1959 - 1996. All forecasts simulate real time implementation,...
Persistent link: https://www.econbiz.de/10012472204
Can an algorithm assist firms in their hiring decisions of corporate directors? This paper proposes a method of selecting boards of directors that relies on machine learning. We develop algorithms with the goal of selecting directors that would be preferred by the shareholders of a particular...
Persistent link: https://www.econbiz.de/10012453279
We have seen in the past decade a sharp increase in the extent that companies use data to optimize their businesses. Variously called the `Big Data' or `Data Science' revolution, this has been characterized by massive amounts of data, including unstructured and nontraditional data like text and...
Persistent link: https://www.econbiz.de/10012453413
We apply deep learning to daytime satellite imagery to predict changes in income and population at high spatial resolution in US data. For grid cells with lateral dimensions of 1.2km and 2.4km (where the average US county has dimension of 55.6km), our model predictions achieve R2 values of 0.85...
Persistent link: https://www.econbiz.de/10012794597
We show, using machine learning, that fund characteristics can consistently differentiate high from low-performing mutual funds, as well as identify funds with net-of-fees abnormal returns. Fund momentum and fund flow are the most important predictors of future risk-adjusted fund performance,...
Persistent link: https://www.econbiz.de/10012938692