A “New Approach” to Standards and Consumer Protection

As consumer use of information and communication technology (ICT) products grows, the importance of ICT standards in consumer markets also grows. While standards for manufactured products were once developed at the national level in formal standards bodies, standards for ICT products today are more likely to be developed by informal standards bodies that target global markets, creating new challenges for national consumer protection laws. As part of the process of creating a single market, the EU developed an innovative and successful form of “coregulation” known as the “New Approach” that coordinated the work of legislators and standards developers to reduce technical barriers to trade in the internal market. In order to protect consumer interests in markets for ICT products effectively, another “New Approach” is needed to coordinate the work of global ICT standard-developing organizations with the goals of national and regional consumer protection laws, but the institutional challenges facing such a strategy are daunting. The French DADVSI legislation represents progress in this direction; further progress may be possible by adopting “better regulation” strategies.

Does endogenous formation of jurisdictions lead to wealth-stratification?

Conditions under which endogenous processes of jurisdiction formation entail wealth-stratification are examined in a model where unequally wealthy households with identical preferences form jurisdictions in order to produce a public good financed by proportional taxation. We define a stable jurisdiction structure to be a partition of the households into jurisdictions that is immune to individual deviations. We define a jurisdiction structure to be wealth-stratified when each jurisdiction is composed of households who form an interval with respect to the ordering of their wealth. We show that a necessary and sufficient condition for the stratification of any stable jurisdiction structure is for the individual preferences for the public and the private good to exhibit a relation of gross substitutability/complementarity between the public good and the private good that is independent from prices and wealth.     

The Misguided Assault on the Consumer Welfare Standard in the Age of Platform Markets

In this paper, we discuss whether the consumer welfare (CW) standard needs to be replaced or revised in order for antitrust law to deal effectively with the economic challenges of the platform economy. We argue that both the general and platform-specific assaults on the CW standard are misguided, that the CW standard is capable of addressing the economic concerns that critics have raised, and that the proposed alternatives would make things worse—not better.

     

What do women want? Female suffrage and the size of government

The economic literature has attributed part of the increase in government expenditure over the 20th century to female voting. This is puzzling, considering that the political science literature has documented that women tended to be more conservative than men over the first half of the 20th century. We argue that the current estimates of this relationship are afflicted by endogeneity bias. Using data for 46 countries and a novel set of instruments related to the diffusion of female suffrage across the globe, we find that, on average, the introduction of female suffrage did not increase either social expenditures or total government expenditure.     

Strategic evaluation and selection of R&D projects

The most important families of R&D project evaluation and selection methodologies and associated techniques are briefly reviewed. For each family, generally one or two methods were chosen to be analysed from the point of view of the integration with the strategy. But, first some definitions and some aspects of the new strategic role of the evaluation and selection of R&D projects, which were in mind during the interviews, are presented.
Finally, some empirical results of the use of these methodologies in France and Japan are presented. The strong and weak points of the most prevalent methods are described as they are considered by the users.     

SUBJECTIVE PROBABILITIES IN GAMES: AN APPLICATION TO THE OVERBIDDING PUZZLE*

This article illustrates how the joint elicitation of subjective probabilities and preferences may help us understand behavior in games. We conduct an experiment to test whether biased probabilistic beliefs may explain overbidding in first‐price auctions. The experimental outcomes indicate that subjects underestimate their probability of winning the auction, and indeed overbid. When provided with feedback on the precision of their predictions, subjects learn to make better predictions, and to curb significantly overbidding. The structural estimation of different behavioral models suggests that biased probabilistic beliefs are a driving force behind overbidding, and that risk aversion plays a lesser role than previously believed.     

Lexicographic compositions of multiple criteria for decision making

This paper considers two distinct procedures to lexicographically compose multiple criteria for social or individual decision making. The first procedure composes M binary relations into one, and then selects its maximal elements. The second procedure first selects the set of maximal elements of the first binary relation, and then within that set, chooses the maximal elements of the second binary relation, and iterates the procedure until the Mth binary relation. We show several distinct sets of conditions for the choice functions representing these two procedures to satisfy non-emptiness and choice-consistency conditions such as contraction consistency and path independence. We also examine the relationships between the outcomes of the two procedures. Finally we investigate under what conditions the outcomes of each procedure are independent of the order of lexicographic application of the criteria.     

Correlated risks and the value of information

A decision maker faces two correlated risks and can obtain information on only one of them. Intuition suggests that the existence of a high correlation (in absolute value) between the risks should increase total information value. Indeed in such a case information about one risk induces a relevant information on the other one. Using a simple example, we show that this intuition is often correct, but that it can also be mitigated by other factors.     

Manufacturers and retailers in the global economy

We develop a model with multi‐product retailers acting as intermediaries between manufacturers and consumers. We show that the rise in retailer product assortment, the rise of up‐front payments in many retail markets and the observed shift in employment from manufacturing to retailing may be the consequence of the global integration of product markets. We also identify a novel benefit from market integration consisting of efficiency gains in the vertical distribution chain.     

Dynamic portfolio optimization with liquidity cost and market impact: a simulation-and-regression approach

We present a simulation-and-regression method for solving dynamic portfolio optimization problems in the presence of general transaction costs, liquidity costs and market impact. This method extends the classical least squares Monte Carlo algorithm to incorporate switching costs, corresponding to transaction costs and transient liquidity costs, as well as multiple endogenous state variables, namely the portfolio value and the asset prices subject to permanent market impact. To handle endogenous state variables, we adapt a control randomization approach to portfolio optimization problems and further improve the numerical accuracy of this technique for the case of discrete controls. We validate our modified numerical method by solving a realistic cash-and-stock portfolio with a power-law liquidity model. We identify the certainty equivalent losses associated with ignoring liquidity effects, and illustrate how our dynamic optimization method protects the investor's capital under illiquid market conditions. Lastly, we analyze, under different liquidity conditions, the sensitivities of certainty equivalent returns and optimal allocations with respect to trading volume, stock price volatility, initial investment amount, risk aversion level and investment horizon.