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Is there still collusion in the Dutch waste collection market?

“…3. The results for other variables were in line with results found by Dijkgraaf and Gradus (2003). The coefficient for number of collection points was somewhat lower than 1, but a Wald test of coefficient restrictions did not falsify the constant returns to scale hypothesis.…”

“…According to this estimation, private collection was 17% cheaper than collection by municipalities. This result is in accordance with earlier results found by Dijkgraaf and Gradus (2003). Moreover, the difference between collection by public firms or inter-municipal cooperation and collection by the municipality itself was small and insignificant.…”

“…This study used the same approach as employed by Dijkgraaf and Gradus (2003) to explain total costs of refuse collection at the municipal level: total costs is dependent on the number of collection points (measured by the number of households), density of collection points, household size, characteristics of recycling and mode of production (private firm, public firm, 1 inter-municipal cooperation or in-house production). According to this estimation, private collection was 17% cheaper than collection by municipalities.…”

Impact of Product Characteristics and Market Conditions on Contract Type: Use of Fixed-Price Versus Cost-Reimbursement Contracts in the U.S. Department of Defense

“…Focusing on cost savings and overruns-the outcome that has received the most scrutiny in the literature-some studies find that competitive contracting results in cost savings (Dijkgraaf & Gradus, 2003;Hakim & Blackstone, 2013;Ivacko & Horner, 2014;Johnston & Seidenstat, 2007), while others find that contracting does not deliver cost savings , generates diminishing cost efficiencies over time (Dijkgraaf & Gradus, 2008), or leads to increased costs (Thompson, 2011). Making sense of these findings is complicated by variations across studies in terms of national context, level of government (i.e., local, regional, national), product (e.g., prison management, refuse collection, water treatment), and cost components (e.g., current payouts from contracting vs. total costs over time).…”

Een feitenrijke wetenschap biedt nog geen antwoord op post-waarheid politiek

“…Bubbels ontstaan ook door hoop en opgeklopte verwachtingen en regelrechte speculatie: door grote investeringen of de inbreng van risicokapitaal in bijvoorbeeld de neurowetenschappen en medisch onderzoek moeten de verwachtingen wel worden waargemaakt of, zolang dat nog niet helemaal het geval is, in ieder geval levend worden gehouden (Rose, 2007). Robbert Dijkgraaf (2016) stelde daarom:…”