Showing 1 - 10 of 1,568
translation-related search costs. Our results provide causal evidence that language barriers significantly hinder trade and that …
Persistent link: https://www.econbiz.de/10012912525
Despite the clear success of forecast combination in many economic environments, several important issues remain incompletely resolved. The issues relate to selection of the set of forecasts to combine, and whether some form of additional regularization (e.g., shrinkage) is desirable. Against...
Persistent link: https://www.econbiz.de/10012911728
Policymakers can take actions to prevent local conflict before it begins, if such violence can be accurately predicted. We examine the two countries with the richest available sub-national data: Colombia and Indonesia. We assemble two decades of fine-grained violence data by type, alongside...
Persistent link: https://www.econbiz.de/10012867902
Financial crises cause economic, social and political havoc. Macroprudential policies are gaining traction but are still severely under-researched compared to monetary and "fiscal policy. We use the general framework of sequential predictions, also called online machine learning, to forecast...
Persistent link: https://www.econbiz.de/10014243066
estimation. We derive novel asymptotic properties for several of these models. To improve out-of-sample prediction accuracy and …
Persistent link: https://www.econbiz.de/10013028059
of Twitter messages, we use an algorithm that calculates the sentiment regarding each film prior to, and after its …
Persistent link: https://www.econbiz.de/10012976985
, we use a deep learning algorithm to measure sentiment within Twitter messages on an hourly basis and introduce a new … measures from Twitter greatly improves forecast accuracy, and (ii) there are substantial gains from our proposed MIDAS …
Persistent link: https://www.econbiz.de/10012858409
There exists significant hype regarding how much machine learning and incorporating social media data can improve forecast accuracy in commercial applications. To assess if the hype is warranted, we use data from the film industry in simulation experiments that contrast econometric approaches...
Persistent link: https://www.econbiz.de/10012916165
, so efficient testing is grounded in accurate prediction of test outcomes. Physician testing decisions can therefore be … suggest the need for models of low-value care that incorporate mis-prediction so as to account for both over- and under-testing …
Persistent link: https://www.econbiz.de/10012864474
What are the prospects for long-run economic growth? The present study looks at a recently launched hypothesis, which I label Singularity. The idea here is that rapid growth in computation and artificial intelligence will cross some boundary or Singularity after which economic growth will...
Persistent link: https://www.econbiz.de/10013015557