Error message

  • Deprecated function: date_create(): Passing null to parameter #1 ($datetime) of type string is deprecated in Drupal\olamalu_janeway\Controller\JanewayPublishedPaperController->getPublicationData() (line 60 of modules/custom/olamalu_janeway/src/Controller/JanewayPublishedPaperController.php).
    Drupal\olamalu_janeway\Controller\JanewayPublishedPaperController->getPublicationData('1160')
    call_user_func_array(Array, Array) (Line: 123)
    Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 627)
    Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 121)
    Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
    Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 181)
    Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76)
    Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
    Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
    Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28)
    Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 32)
    Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 191)
    Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128)
    Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82)
    Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
    Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
    Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 36)
    Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51)
    Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 704)
    Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
    
  • Deprecated function: explode(): Passing null to parameter #2 ($string) of type string is deprecated in Drupal\olamalu_janeway\Controller\JanewayPublishedPaperController->getPublicationData() (line 65 of modules/custom/olamalu_janeway/src/Controller/JanewayPublishedPaperController.php).
    Drupal\olamalu_janeway\Controller\JanewayPublishedPaperController->getPublicationData('1160')
    call_user_func_array(Array, Array) (Line: 123)
    Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 627)
    Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 121)
    Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
    Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 181)
    Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76)
    Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
    Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
    Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28)
    Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 32)
    Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 191)
    Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128)
    Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82)
    Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
    Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
    Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 36)
    Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51)
    Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 704)
    Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
    
  • Deprecated function: explode(): Passing null to parameter #2 ($string) of type string is deprecated in Drupal\olamalu_janeway\Controller\JanewayPublishedPaperController->getPublicationData() (line 67 of modules/custom/olamalu_janeway/src/Controller/JanewayPublishedPaperController.php).
    Drupal\olamalu_janeway\Controller\JanewayPublishedPaperController->getPublicationData('1160')
    call_user_func_array(Array, Array) (Line: 123)
    Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 627)
    Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 121)
    Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
    Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 181)
    Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76)
    Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 58)
    Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
    Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28)
    Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 32)
    Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 191)
    Drupal\page_cache\StackMiddleware\PageCache->fetch(Object, 1, 1) (Line: 128)
    Drupal\page_cache\StackMiddleware\PageCache->lookup(Object, 1, 1) (Line: 82)
    Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 48)
    Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
    Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 36)
    Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51)
    Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 704)
    Drupal\Core\DrupalKernel->handle(Object) (Line: 19)
    

Averaging of an increasing number of moment condition estimators

Saturday 27th April 2024
Econometric Theory
Chen, X., Jacho-Chavez, D.T. and Linton, O.
We establish the consistency and asymptotic normality for a class of estimators that are linear combinations of a set of S0266466614000851_inline1-consistent nonlinear estimators whose cardinality increases with sample size. The method can be compared with the usual approaches of combining the moment conditions (GMM) and combining the instruments (IV), and achieves similar objectives of aggregating the available information. One advantage of aggregating the estimators rather than the moment conditions is that it yields robustness to certain types of parameter heterogeneity in the sense that it delivers consistent estimates of the mean effect in that case. We discuss the question of optimal weighting of the estimators.
Keywords
Themes
empirical