This paper studies bilateral trade in which the seller makes a hidden investment that influences the buyer’s hidden valuation. In general it is impossible to implement both first-best efficient trade and efficient investment using budgetbalanced trading mechanisms. The paper fully characterizes the constrained efficient contracts. It is shown that the optimal tradeoff between allocative efficie...

Within recent years, ganglioside patterns have been increasingly analyzed by MS. However, internal standards for calibration are only available for gangliosides GM1, GM2, and GM3. For this reason, we prepared homologous internal standards bearing nonnatural fatty acids of the major mammalian brain gangliosides GM1, GD1a, GD1b, GT1b, and GQ1b, and of the tumor-associated gangliosides GM2 and GD2...

The present paper analyzes a network formation problem, mainly based on the framework presented in [Bala-Goyal 2000]. We depart from their assumptions in two crucial aspects. On one hand, we assume that connecting to an agent pays off not only for the number of connections that the agent can provide but also for her intrinsic value. Since the values of the agents (which represent the amounts of...

The photochemistry of I-naphthol following its electronic excitation in aqueous solution was investigated by a single-photon counting apparatus. It was found that following the proton dissociation the excited naphtholate anion decays non-exponentially withar“* dependence over time. This we attribute to a self-quenching reaction of the naphtholate anion by its geminate proton. The quenching rate...

ZEKE-PFI (zero kinetic energy pulsed field ionization) photoelectron spectra of the Na(H 20), Na(D20), Na(NH 3), and Na(ND3) complexes are reported. Spectra of all four complexes were obtained by single-photon ionization, and, for the Na(NH 3) and Na(ND3) complexes, by two-color (I+ I') photoionization as well, with the A E state serving as the intermediate resonance. Improved values for the io...

The effect of deuterium oxide (D20) on the survival of mice inoculated with Ehr l ich ls mouse asc i tes tumor has been studied. Mice maintained on 25%and 30% D P drinking water showed an improved survival t ime of about 6 days whereas 40%DZO drinking water had no effect on survival t ime. The effect is interpreted i n t e r m s of inhibition of tumor cell division and systemic toxicity. t Ann ...

This paper considers the measurement of firm’s specific (in)efficiency while allows for the possible heterogeneous technologies adopted by different firms. A flexible stochastic frontier model with random coefficients is proposed to distinguish technical inefficiency from technological differences across firms. Posterior inference of the model is made possible via the simulation-based approach,...

The upper tail of the firm size distribution is often assumed to follow a Power Law behavior. Recently, using different estimators and on different data sets, several papers conclude that this distribution follows the Zipf Law, that is that the fraction of firms whose size is above a given value is inversely proportional to the value itself. We compare the different methods through which this c...

In this laboratory experiment we study the use of strategic ignorance to delegate real authority within a firm. A worker can gather information on investment projects, while a manager makes the implementation decision. The manager can monitor the worker. This allows her to better exploit the information gathered by the worker, but also reduces the worker's incentives to gather information in th...