What Allotment and Subcontracting in Procurement Bidding

Allotment and subcontracting are the two alternative mechanisms enabling the participation of SMEs in procurement. We compare these two alternatives in the context of a procurement contract awarded by a first-price sealed-bid auction. When the winning large firm is constrained with respect to the degree of subcontracting, we show that only a reduction of the chosen SME's profit can reduce the expected cost of the contract. However, when the large firm is allowed to choose the subcontracting level, subcontracting can be a Pareto dominating mechanism, i.e. simultaneously increasing both firms' profits and reducing the expected total cost of the contract.allotment; subcontracting; procurement; bidding

The Sales of Small firms : a multidimensional analysis

Working Paper du GATE 2001-02This paper endogeneizes the security voting structure in an auction mechanism used to sell a small firm. The design of security voting structure allows the seller to choose between two objectives which are not mutually consistent. If the seller wants to maximize his revenue, he should retain some shares to benefit from the future dividends generated by the acquirer. At the opposite, if he wants to sell his firm to the most efficient candidate, he should sell all the shares.Ce papier étudie une procédure particulière de vente de PME, l'open-bid, dans laquelle nous endogénéisons la structure en droits de vote des actifs financiers. Cette procédure de vente se rapproche d'une enchère ascendante. Le vendeur peut avoir deux objectifs divergents: maximiser son revenu et assurer la pérennité de son entreprise. Le premier objectif est atteint si le vendeur conserve une partie des parts de l'entreprise afin de tirer bénéfices des dividendes futurs réalisés par le repreneur. Le second objectif implique la vente de la totalité des parts de l'entreprise

Feeding and metabolism of the jellyfish Pelagia noctiluca (scyphomedusae, semaeostomae)

International audienc

The Sales of Small firms : a multidimensional analysis

This paper endogeneizes the security voting structure in an auction mechanism used to sell a small firm. The design of security voting structure allows the seller to choose between two objectives which are not mutually consistent. If the seller wants to maximize his revenue, he should retain some shares to benefit from the future dividends generated by the acquirer. At the opposite, if he wants to sell his firm to the most efficient candidate, he should sell all the shares.auctions; security voting structure; small firms

Body Size Evolution of Oxyurid (Nematoda) Parasites: The Role of Hosts

Studying the diversification of body size in a taxon of parasites allows comparison of patterns of variation observed in the parasites with patterns found in free-living organisms. The distributions of body size of oxyurid nematodes (obligate parasites of vertebrates and invertebrates) are lognormally right-skewed, except for male oxyurids in invertebrates which show left-skewed distributions. In these parasitic forms, speciose genera do not have the smallest body sizes. Parasite body size is positively correlated with host body size, the largest hosts possessing the largest parasites. This trend is shown to occur within one monophyletic group of oxyurids, those of Old World primates. Comparative methods are used to take account of the effects of phylogeny. The use of multiple linear regression on distance matrices allows measurements of the contribution of phylogeny to the evolution of body size of parasites. Evolution of body size in female pinworms of Old World primates appears to be dependent only on the body size of their hosts. The tendency of parasite body size to increase with host body size is discussed in the light of the evolution of life-history traits