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on Information and Communication Technologies |
| By: | Enea, Gabriele; Figurelli, Lucrezio; Giuntella, Giovanni Osea |
| Abstract: | The aim of this paper is to estimate the economic benefit for the New York Metroplex area of the controller-to-pilot communication standard known as Data-Communication. RAMS simulation software was first used to evaluate the potential impact of the new technology on airport operations in the three airports of LaGuardia, Newark and John F. Kennedy. The new technology would allow for a greater number of operations and reduce the average hourly workload for air traffic controllers. We employ a two steps procedure. First, we estimate a benefit function per number of hourly operations. Second, using the empirical distribution of hourly operations and the benefit function found in step one, we compute the average daily benefit from the technology as the reduced cost from delays plus the net effect on controllers workload due to its implementation. The procedure is applied at each airport individually and to the metroplex area as a whole. Our estimates show that the introduction of Data-Comm would yield significant savings in the New York Metroplex area. |
| Keywords: | air transportation; congestion |
| JEL: | L93 R41 |
| Date: | 2010–07–23 |
| URL: | http://d.repec.org/n?u=RePEc:pra:mprapa:24082&r=ict |
| By: | Katrin Schmelz (Max Planck Institute of Economics, Jena, IMPRS "Uncertainty") |
| Abstract: | E-nstructions facilitates the use of electronic instructions in computerized laboratory experiments. This tool has been primarily designed to be used in combination with z-Tree (Fischbacher, 2007), but it should work in combination with other experimental softwares which help developing and conducting experiments. This article provides a set of guidelines for the installation and the use of E-nstructions. |
| Keywords: | Experiments, Experimental software, instructions |
| JEL: | C91 C92 |
| Date: | 2010–07–26 |
| URL: | http://d.repec.org/n?u=RePEc:jrp:jrpwrp:2010-047&r=ict |
| By: | Lindhjem, Henrik; Navrud, Ståle |
| Abstract: | With the current growth in broadband penetration, Internet is likely to be the data collection mode of choice for stated preference research in the not so distant future. However, little is known about how this survey mode may influence data quality and welfare estimates. In a first controlled field experiment to date as part of a national contingent valuation (CV) survey estimating willingness to pay (WTP) for biodiversity protection plans, we assign two groups sampled from the same panel of respondents either to an Internet or in-person (in-house) interview mode. Our design is better able than previous studies to isolate measurement effects from sample composition effects. We find little evidence of social desirability bias in the in-person interview setting or satisficing (shortcutting the response process) in the Internet survey. The share of “don’t knows”, zeros and protest responses to the WTP question with a payment card is very similar between modes. Equality of mean WTP between samples cannot be rejected. Considering equivalence, we can reject that mean WTP from the in-person sample is more than 30% higher. Results are quite encouraging for the use of Internet in CV as stated preferences do not seem to be significantly different or biased compared to in-person interviews. |
| Keywords: | Internet; contingent valuation; interviews; survey mode; willingness to pay |
| JEL: | H41 Q51 |
| Date: | 2010–07–09 |
| URL: | http://d.repec.org/n?u=RePEc:pra:mprapa:24069&r=ict |