Deprecated (16384): The ArrayAccess methods will be removed in 4.0.0.Use getParam(), getData() and getQuery() instead. - /home/brlfuser/public_html/src/Controller/ArtileDetailController.php, line: 150
 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php. [CORE/src/Core/functions.php, line 311]
Code Context


        trigger_error($message, E_USER_DEPRECATED);

    }
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 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php.'
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deprecationWarning - CORE/src/Core/functions.php, line 311
Cake\Http\ServerRequest::offsetGet() - CORE/src/Http/ServerRequest.php, line 2421
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Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Http\Runner::run() - CORE/src/Http/Runner.php, line 51
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 98

Deprecated (16384): The ArrayAccess methods will be removed in 4.0.0.Use getParam(), getData() and getQuery() instead. - /home/brlfuser/public_html/src/Controller/ArtileDetailController.php, line: 151
 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php. [CORE/src/Core/functions.php, line 311]
Code Context


        trigger_error($message, E_USER_DEPRECATED);

    }
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 You can disable deprecation warnings by setting `Error.errorLevel` to `E_ALL & ~E_USER_DEPRECATED` in your config/app.php.'
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deprecationWarning - CORE/src/Core/functions.php, line 311
Cake\Http\ServerRequest::offsetGet() - CORE/src/Http/ServerRequest.php, line 2421
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Cake\Controller\Controller::invokeAction() - CORE/src/Controller/Controller.php, line 610
Cake\Http\ActionDispatcher::_invoke() - CORE/src/Http/ActionDispatcher.php, line 120
Cake\Http\ActionDispatcher::dispatch() - CORE/src/Http/ActionDispatcher.php, line 94
Cake\Http\BaseApplication::__invoke() - CORE/src/Http/BaseApplication.php, line 235
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Routing\Middleware\RoutingMiddleware::__invoke() - CORE/src/Routing/Middleware/RoutingMiddleware.php, line 162
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Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Error\Middleware\ErrorHandlerMiddleware::__invoke() - CORE/src/Error/Middleware/ErrorHandlerMiddleware.php, line 96
Cake\Http\Runner::__invoke() - CORE/src/Http/Runner.php, line 65
Cake\Http\Runner::run() - CORE/src/Http/Runner.php, line 51
Cake\Http\Server::run() - CORE/src/Http/Server.php, line 98

Warning (512): Unable to emit headers. Headers sent in file=/home/brlfuser/public_html/vendor/cakephp/cakephp/src/Error/Debugger.php line=853 [CORE/src/Http/ResponseEmitter.php, line 48]
Code Context
            if (Configure::read('debug')) {

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        LATEST NEWS UPDATES | Begin with a rigorous study -Jasmine Shah &amp; Gabriel Kreindler    </title>
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-The Indian Express

Delhi&rsquo;s odd-even trial was brave, but policy needs good research at design stage. 

The trial period of the odd-even policy demonstrated a commendable willingness from the Delhi government to experiment with a policy option, and decide its future..."/>
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-The Indian Express

Delhi&rsquo;s odd-even trial was brave, but policy needs good research at design stage. 

The trial period of the odd-even policy demonstrated a commendable willingness from the Delhi government to experiment with a policy option, and decide its future..." />
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                            <div align="justify">-The Indian Express<br /><br /><em>Delhi&rsquo;s odd-even trial was brave, but policy needs good research at design stage. <br /></em><br />The trial period of the odd-even policy demonstrated a commendable willingness from the Delhi government to experiment with a policy option, and decide its future based on the evidence of impact, and acceptability from the residents of Delhi.<br /><br />Good evidence on the impact of any public policy requires a willingness to experiment, quality data, and a rigorous study design that can identify what changes can be attributed to the policy alone. The odd-even trial scores well on the first two points. So why is there still significant disagreement on the policy&rsquo;s impact on pollution and congestion? Estimating the policy&rsquo;s impact is hampered by important factors, such as weather conditions.<br /><br />While the jury is still out on the impact on pollution and congestion, other important aspects of the odd-even policy deserve close scrutiny. Indeed, the economic and social cost depends strongly on how the policy affects restricted drivers. To what extent do drivers comply? What alternative transport do they switch to, and do they face significant inconvenience? These questions are addressed in a recent study led by one of the writers (Kreindler) and conducted by J-PAL South Asia.<br /><br />The study enrolled 614 male drivers, owners and regular users of a petrol or diesel car, at petrol pumps across Delhi and tracked their behaviour over phone surveys throughout the 15-day trial. Since odd and even licence plate numbers are essentially randomly assigned, any systematic difference between the restricted and unrestricted groups will be due to the policy, instead of a third factor.<br /><br />The policy led to a substantial decrease in the use of primary cars on restricted days. The fraction of respondents who travelled using their car dropped from 51 per cent on unrestricted days to 17 per cent on restricted days. This means about one in every six respondents reported driving when their vehicle was restricted. Nevertheless, only three respondents reported paying the Rs 2,000 fine.<br /><br />The 33 per cent who switched away from their primary car on restricted days chose from a range of alternatives. Around 9 per cent used another household car or a motorcycle, thereby continuing to drive a private vehicle. Another 8 per cent turned to auto-rickshaws or taxis. We also find a significant switch to public transportation, with 6 per cent turning to the Metro, and 3 per cent to carpooling. We did not detect any switch towards the bus. Some drivers seemed to find it too inconvenient to travel if their primary car wasn&rsquo;t available, and on restricted days, approximately 8 per cent drivers cancelled trips, including work-related trips. Overwhelmingly, Delhi drivers reported to be satisfied. The satisfaction rate was lower on restricted days, yet even then it was above 80 per cent. Similarly, we detected a small to moderate increase in reports of inconvenience.<br /><br />Overall, the study shows the odd-even policy was largely received well by car drivers. However, a small but significant number of drivers continued to violate the restrictions, while others cancelled or rescheduled trips, or faced inconveniences. The government will need to grapple with these issues.<br /><br />The debate around the policy&rsquo;s impact highlights the need for more rigorous and carefully designed studies, in addition to smart policy experiments and quality data, to uncover which policies work most effectively to contain congestion and pollution. This, in turn, requires policymakers to work in close collaboration with researchers at the early stages of the policy design.<br /><br />A good example of such collaboration is the partnership between the Gujarat Pollution Control Board and a research team, led by J-PAL affiliates Esther Duflo (MIT), Michael Greenstone (University of Chicago), Rohini Pande (Harvard), and Nicholas Ryan (Yale), to design and evaluate a reform aimed at curbing industrial air pollution. A randomised evaluation of the reform in 2009 revealed that changing the market for environmental audits to incentivise accurate reporting made auditors more likely to report the truth about industrial plants&rsquo; pollution levels. In response, industrial plants polluted less. The reform has since then been scaled up across Gujarat.<br /><br />The sources of pollution in Delhi are varied, and so will be the solutions. The Delhi government&rsquo;s odd-even policy is a brave experiment and a clear departure from how policymakers have sought to tackle worsening pollution. However, it reflects only one of the potential policy innovations that need to be carefully designed, piloted and evaluated for impact as well as the costs imposed, until there&rsquo;s a sustained improvement in Delhi&rsquo;s air quality.<br /><br />&nbsp;<br /><em>Shah is deputy director at J-PAL South Asia at IFMR, Kreindler is a doctoral candidate in the Department of Economics, MIT.<br /></em><br /></div>                                                           
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    <br><a href="http://indianexpress.com/article/opinion/columns/begin-with-a-rigorous-study/" class="re" target="_blank">The Indian Express, 23 January, 2016, http://indianexpress.com/article/opinion/columns/begin-with-a-rigorous-study/</a><div class="clear"></div>
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Delhi&rsquo;s odd-even trial was brave, but policy needs good research at design stage. 

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    <h1 class="cat-box-title">Begin with a rigorous study -Jasmine Shah &amp; Gabriel Kreindler</h1>
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                            <div align="justify">-The Indian Express<br /><br /><em>Delhi&rsquo;s odd-even trial was brave, but policy needs good research at design stage. <br /></em><br />The trial period of the odd-even policy demonstrated a commendable willingness from the Delhi government to experiment with a policy option, and decide its future based on the evidence of impact, and acceptability from the residents of Delhi.<br /><br />Good evidence on the impact of any public policy requires a willingness to experiment, quality data, and a rigorous study design that can identify what changes can be attributed to the policy alone. The odd-even trial scores well on the first two points. So why is there still significant disagreement on the policy&rsquo;s impact on pollution and congestion? Estimating the policy&rsquo;s impact is hampered by important factors, such as weather conditions.<br /><br />While the jury is still out on the impact on pollution and congestion, other important aspects of the odd-even policy deserve close scrutiny. Indeed, the economic and social cost depends strongly on how the policy affects restricted drivers. To what extent do drivers comply? What alternative transport do they switch to, and do they face significant inconvenience? These questions are addressed in a recent study led by one of the writers (Kreindler) and conducted by J-PAL South Asia.<br /><br />The study enrolled 614 male drivers, owners and regular users of a petrol or diesel car, at petrol pumps across Delhi and tracked their behaviour over phone surveys throughout the 15-day trial. Since odd and even licence plate numbers are essentially randomly assigned, any systematic difference between the restricted and unrestricted groups will be due to the policy, instead of a third factor.<br /><br />The policy led to a substantial decrease in the use of primary cars on restricted days. The fraction of respondents who travelled using their car dropped from 51 per cent on unrestricted days to 17 per cent on restricted days. This means about one in every six respondents reported driving when their vehicle was restricted. Nevertheless, only three respondents reported paying the Rs 2,000 fine.<br /><br />The 33 per cent who switched away from their primary car on restricted days chose from a range of alternatives. Around 9 per cent used another household car or a motorcycle, thereby continuing to drive a private vehicle. Another 8 per cent turned to auto-rickshaws or taxis. We also find a significant switch to public transportation, with 6 per cent turning to the Metro, and 3 per cent to carpooling. We did not detect any switch towards the bus. Some drivers seemed to find it too inconvenient to travel if their primary car wasn&rsquo;t available, and on restricted days, approximately 8 per cent drivers cancelled trips, including work-related trips. Overwhelmingly, Delhi drivers reported to be satisfied. The satisfaction rate was lower on restricted days, yet even then it was above 80 per cent. Similarly, we detected a small to moderate increase in reports of inconvenience.<br /><br />Overall, the study shows the odd-even policy was largely received well by car drivers. However, a small but significant number of drivers continued to violate the restrictions, while others cancelled or rescheduled trips, or faced inconveniences. The government will need to grapple with these issues.<br /><br />The debate around the policy&rsquo;s impact highlights the need for more rigorous and carefully designed studies, in addition to smart policy experiments and quality data, to uncover which policies work most effectively to contain congestion and pollution. This, in turn, requires policymakers to work in close collaboration with researchers at the early stages of the policy design.<br /><br />A good example of such collaboration is the partnership between the Gujarat Pollution Control Board and a research team, led by J-PAL affiliates Esther Duflo (MIT), Michael Greenstone (University of Chicago), Rohini Pande (Harvard), and Nicholas Ryan (Yale), to design and evaluate a reform aimed at curbing industrial air pollution. A randomised evaluation of the reform in 2009 revealed that changing the market for environmental audits to incentivise accurate reporting made auditors more likely to report the truth about industrial plants&rsquo; pollution levels. In response, industrial plants polluted less. The reform has since then been scaled up across Gujarat.<br /><br />The sources of pollution in Delhi are varied, and so will be the solutions. The Delhi government&rsquo;s odd-even policy is a brave experiment and a clear departure from how policymakers have sought to tackle worsening pollution. However, it reflects only one of the potential policy innovations that need to be carefully designed, piloted and evaluated for impact as well as the costs imposed, until there&rsquo;s a sustained improvement in Delhi&rsquo;s air quality.<br /><br />&nbsp;<br /><em>Shah is deputy director at J-PAL South Asia at IFMR, Kreindler is a doctoral candidate in the Department of Economics, MIT.<br /></em><br /></div>                                                           
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    <br><a href="http://indianexpress.com/article/opinion/columns/begin-with-a-rigorous-study/" class="re" target="_blank">The Indian Express, 23 January, 2016, http://indianexpress.com/article/opinion/columns/begin-with-a-rigorous-study/</a><div class="clear"></div>
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-The Indian Express

Delhi&rsquo;s odd-even trial was brave, but policy needs good research at design stage. 

The trial period of the odd-even policy demonstrated a commendable willingness from the Delhi government to experiment with a policy option, and decide its future..." />
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                            <div align="justify">-The Indian Express<br /><br /><em>Delhi&rsquo;s odd-even trial was brave, but policy needs good research at design stage. <br /></em><br />The trial period of the odd-even policy demonstrated a commendable willingness from the Delhi government to experiment with a policy option, and decide its future based on the evidence of impact, and acceptability from the residents of Delhi.<br /><br />Good evidence on the impact of any public policy requires a willingness to experiment, quality data, and a rigorous study design that can identify what changes can be attributed to the policy alone. The odd-even trial scores well on the first two points. So why is there still significant disagreement on the policy&rsquo;s impact on pollution and congestion? Estimating the policy&rsquo;s impact is hampered by important factors, such as weather conditions.<br /><br />While the jury is still out on the impact on pollution and congestion, other important aspects of the odd-even policy deserve close scrutiny. Indeed, the economic and social cost depends strongly on how the policy affects restricted drivers. To what extent do drivers comply? What alternative transport do they switch to, and do they face significant inconvenience? These questions are addressed in a recent study led by one of the writers (Kreindler) and conducted by J-PAL South Asia.<br /><br />The study enrolled 614 male drivers, owners and regular users of a petrol or diesel car, at petrol pumps across Delhi and tracked their behaviour over phone surveys throughout the 15-day trial. Since odd and even licence plate numbers are essentially randomly assigned, any systematic difference between the restricted and unrestricted groups will be due to the policy, instead of a third factor.<br /><br />The policy led to a substantial decrease in the use of primary cars on restricted days. The fraction of respondents who travelled using their car dropped from 51 per cent on unrestricted days to 17 per cent on restricted days. This means about one in every six respondents reported driving when their vehicle was restricted. Nevertheless, only three respondents reported paying the Rs 2,000 fine.<br /><br />The 33 per cent who switched away from their primary car on restricted days chose from a range of alternatives. Around 9 per cent used another household car or a motorcycle, thereby continuing to drive a private vehicle. Another 8 per cent turned to auto-rickshaws or taxis. We also find a significant switch to public transportation, with 6 per cent turning to the Metro, and 3 per cent to carpooling. We did not detect any switch towards the bus. Some drivers seemed to find it too inconvenient to travel if their primary car wasn&rsquo;t available, and on restricted days, approximately 8 per cent drivers cancelled trips, including work-related trips. Overwhelmingly, Delhi drivers reported to be satisfied. The satisfaction rate was lower on restricted days, yet even then it was above 80 per cent. Similarly, we detected a small to moderate increase in reports of inconvenience.<br /><br />Overall, the study shows the odd-even policy was largely received well by car drivers. However, a small but significant number of drivers continued to violate the restrictions, while others cancelled or rescheduled trips, or faced inconveniences. The government will need to grapple with these issues.<br /><br />The debate around the policy&rsquo;s impact highlights the need for more rigorous and carefully designed studies, in addition to smart policy experiments and quality data, to uncover which policies work most effectively to contain congestion and pollution. This, in turn, requires policymakers to work in close collaboration with researchers at the early stages of the policy design.<br /><br />A good example of such collaboration is the partnership between the Gujarat Pollution Control Board and a research team, led by J-PAL affiliates Esther Duflo (MIT), Michael Greenstone (University of Chicago), Rohini Pande (Harvard), and Nicholas Ryan (Yale), to design and evaluate a reform aimed at curbing industrial air pollution. A randomised evaluation of the reform in 2009 revealed that changing the market for environmental audits to incentivise accurate reporting made auditors more likely to report the truth about industrial plants&rsquo; pollution levels. In response, industrial plants polluted less. The reform has since then been scaled up across Gujarat.<br /><br />The sources of pollution in Delhi are varied, and so will be the solutions. The Delhi government&rsquo;s odd-even policy is a brave experiment and a clear departure from how policymakers have sought to tackle worsening pollution. However, it reflects only one of the potential policy innovations that need to be carefully designed, piloted and evaluated for impact as well as the costs imposed, until there&rsquo;s a sustained improvement in Delhi&rsquo;s air quality.<br /><br />&nbsp;<br /><em>Shah is deputy director at J-PAL South Asia at IFMR, Kreindler is a doctoral candidate in the Department of Economics, MIT.<br /></em><br /></div>                                                           
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Begin with a rigorous study -Jasmine Shah & Gabriel Kreindler

Published on Jan 23, 2016   Modified on Jan 23, 2016

-The Indian Express Delhi’s odd-even trial was brave, but policy needs good research at design stage. The trial period of the odd-even policy demonstrated a commendable willingness from the Delhi government to experiment with a policy option, and decide its future based on the evidence of impact, and acceptability from the residents of Delhi. Good evidence on the impact of any public policy requires a willingness to experiment, quality data, and a rigorous study design that can identify what changes can be attributed to the policy alone. The odd-even trial scores well on the first two points. So why is there still significant disagreement on the policy’s impact on pollution and congestion? Estimating the policy’s impact is hampered by important factors, such as weather conditions. While the jury is still out on the impact on pollution and congestion, other important aspects of the odd-even policy deserve close scrutiny. Indeed, the economic and social cost depends strongly on how the policy affects restricted drivers. To what extent do drivers comply? What alternative transport do they switch to, and do they face significant inconvenience? These questions are addressed in a recent study led by one of the writers (Kreindler) and conducted by J-PAL South Asia. The study enrolled 614 male drivers, owners and regular users of a petrol or diesel car, at petrol pumps across Delhi and tracked their behaviour over phone surveys throughout the 15-day trial. Since odd and even licence plate numbers are essentially randomly assigned, any systematic difference between the restricted and unrestricted groups will be due to the policy, instead of a third factor. The policy led to a substantial decrease in the use of primary cars on restricted days. The fraction of respondents who travelled using their car dropped from 51 per cent on unrestricted days to 17 per cent on restricted days. This means about one in every six respondents reported driving when their vehicle was restricted. Nevertheless, only three respondents reported paying the Rs 2,000 fine. The 33 per cent who switched away from their primary car on restricted days chose from a range of alternatives. Around 9 per cent used another household car or a motorcycle, thereby continuing to drive a private vehicle. Another 8 per cent turned to auto-rickshaws or taxis. We also find a significant switch to public transportation, with 6 per cent turning to the Metro, and 3 per cent to carpooling. We did not detect any switch towards the bus. Some drivers seemed to find it too inconvenient to travel if their primary car wasn’t available, and on restricted days, approximately 8 per cent drivers cancelled trips, including work-related trips. Overwhelmingly, Delhi drivers reported to be satisfied. The satisfaction rate was lower on restricted days, yet even then it was above 80 per cent. Similarly, we detected a small to moderate increase in reports of inconvenience. Overall, the study shows the odd-even policy was largely received well by car drivers. However, a small but significant number of drivers continued to violate the restrictions, while others cancelled or rescheduled trips, or faced inconveniences. The government will need to grapple with these issues. The debate around the policy’s impact highlights the need for more rigorous and carefully designed studies, in addition to smart policy experiments and quality data, to uncover which policies work most effectively to contain congestion and pollution. This, in turn, requires policymakers to work in close collaboration with researchers at the early stages of the policy design. A good example of such collaboration is the partnership between the Gujarat Pollution Control Board and a research team, led by J-PAL affiliates Esther Duflo (MIT), Michael Greenstone (University of Chicago), Rohini Pande (Harvard), and Nicholas Ryan (Yale), to design and evaluate a reform aimed at curbing industrial air pollution. A randomised evaluation of the reform in 2009 revealed that changing the market for environmental audits to incentivise accurate reporting made auditors more likely to report the truth about industrial plants’ pollution levels. In response, industrial plants polluted less. The reform has since then been scaled up across Gujarat. The sources of pollution in Delhi are varied, and so will be the solutions. The Delhi government’s odd-even policy is a brave experiment and a clear departure from how policymakers have sought to tackle worsening pollution. However, it reflects only one of the potential policy innovations that need to be carefully designed, piloted and evaluated for impact as well as the costs imposed, until there’s a sustained improvement in Delhi’s air quality.   Shah is deputy director at J-PAL South Asia at IFMR, Kreindler is a doctoral candidate in the Department of Economics, MIT.

The Indian Express, 23 January, 2016, http://indianexpress.com/article/opinion/columns/begin-with-a-rigorous-study/

Tagged with: Odd Even Formula Vehicular Pollution Air Pollution Air Quality

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