Lifestyles of the rich and polygynous in Cote d’Ivoire

This paper investigates whether the sources of income, not just the levels, determine whether an individual is monogamous. Our results support the idea that polygyny stunts development by allowing wealthy men to acquire wives rather than investing in child quality.     

Venture Capital Funds, Financial Foreign Direct Investment and the Generation of Local Comparative Advantage in the Technology Sector in Israel

The rapid development of a new comparative advantage in thehi-tech sector in Israel in the period 1995–2005 providesan example of a new form of foreign direct investment (FDI).Unlike traditional FDI, this new form of international investment,that we dubbed financial foreign direct investment (FFDI), involvescapital flows from developed countries to small countries andto the emerging markets. The providers of this capital, definedin our study as "sector-specific capital", are financial andrisk intermediaries like venture capital funds and private equityfunds. Like multinational enterprises they transfer factorsof production across borders seeking to maximize their value.In doing so, they are a part of a process of generating newcomparative advantages. We focus on the case of Israel and showthat, due to the inherent asymmetry, it takes government actionto trigger the process of importing sector-specific capitalto Israel primarily from the US capital market, but once theprocess has begun, it has led to economic growth via reducingtangible and intangible trade costs, creating trust and thusgenerating competitive advantage for innovative technology firmsfrom Israel in the global markets.     

Optimal expenditure patterns for risky R&D projects with time-dependent returns

The basic Lucas model for risky R&D projects is revisited. New solutions for optimal expenditures are explored by exploiting the merits of the theory of differential equations. After applying the calculus of variations, a nonlinear differential equation is presented whose solution provides the optimal control for a constant conditional-completion density function and different time-dependent return models. New, exact, and approximate solutions are presented and discussed. It is found, for the class of risky R&D projects under study, that the behavior over time of the optimal expenditure is functionally similar to that of the expected return.     

Assessing Mobility Barriers In Dynamic Strategic Groups Analysis

The Mobility Barriers Paradigm (Caves and Porter, 1977) has strongly influenced research in strategic management, particularly in the areas of competitive analysis and strategic groups. In this article we develop a procedure called MOBIUS, based on ‘match ratios’(MRs), in order to identify those competitive variables which act as mobility barriers in a particular industry. We also attempt to classify mobility barriers in terms of the degree of observed mobility around key strategic variables and the extent to which change is desired on these variables. the MOBIUS procedure is illustrated briefly in the context of the pharmaceutical industry.     

Tradability,closeness to market prices,and expected profit: their measurement for a binomial model of options pricing in a heterogeneous market

A reliable method of options pricing in real time would help various players, including hedgers and speculators, to make informed decisions. In this study, we develop an extensive simulation with multiple business environments, which includes the use of real data from the S&P 500 Index between the years 2010–2017 for the 30 days prior to expiration of the options. Forecasted tradability is computed based on the SH model: a theoretical model of real-time options pricing that takes into account players’ heterogeneity with regard to their willingness to accept offers proposed by the opposing player. The quality of the model is examined for the scenario in which the model players are speculators who act against the real market prices. We show that the equilibrium prices predicted by the SH model are close to the market prices (a deviation of up to approx. 3%) in an In-The-Money environment. Additionally, the tougher the players (i.e., the greater their level of unwillingness to accept a bid from the opposing player), the higher the average tradability. We also find that the level of willingness of the players has a greater effect on tradability than does option moneyness or the market trend.

     

The relationship between reciprocal currency futures prices

Consider a futures contract on Country 2’s currency denominated in Country 1’s currency, and its reciprocal, a futures contract on Country 1’s currency denominated in Country 2’s currency. Because both are marked to market in different currencies, the relationship between the associated futures prices is not simple. We investigate the functional relationship between these two futures prices.     

Street Performance,Public Space,and the Boundaries of Urban Desirability: The Case of Living Statues in Barcelona

How do cities determine who has the right to station themselves in iconic public spaces? This article explores this question by analyzing the evolution of Barcelona's approach to regulating street performance, with a particular focus on regulations pertaining to ‘living statues’. Although most buskers have been expelled from the Ramblas, one of the city's most emblematic walkways, living statues remain permitted on the promenade. This, I argue, is due to the general embrace of statues as part of local tradition and their integration within city‐branding campaigns, as well as their own organizing and boundary work. As the image Barcelona seeks to cultivate has changed, however, the right of statues to station themselves in public space has become ever more tenuous. My findings speak to broader questions regarding how cities determine the boundaries of ‘urban desirability’, as well as why and how such boundaries change over time. They also elucidate the strategies that groups located at the margins employ in attempting to position themselves favorably in relation to such boundaries. More generally, they highlight how current approaches to analyzing urban inclusion and exclusion may benefit from a more sustained engagement with the burgeoning social scientific literature on symbolic boundaries.     

Privacy Regulation and Market Structure

This paper models how regulatory attempts to protect the privacy of consumers' data affect the competitive structure of data‐intensive industries. Our results suggest that the commonly used consent‐based approach may disproportionately benefit firms that offer a larger scope of services. Therefore, though privacy regulation imposes costs on all firms, it is small firms and new firms that are most adversely affected. We then show that this negative effect will be particularly severe for goods where the price mechanism does not mediate the effect, such as the advertising‐supported Internet.     

A theory of permissible illegal immigration

In many countries laws are not enforced against visibly present illegal immigrants. The visibly present illegal immigrants also tend to be concentrated in particular sectors. We explain such permissible illegal immigration in an endogenous-policy model where selective sector-specific illegality transforms illegal immigrants from non-sectorally specialized to sector-specific factors of production. Under initial conditions where no immigrants are present, the median voter opposes immigration. When, however, a population of illegal immigrants has accumulated, ongoing illegal immigration becomes an endogenous equilibrium policy, at the same time that a majority of voters opposes legal immigration and opposes amnesty that would legalize the immigrants' presence. We also establish a basis for domestic voters preferring that illegal immigrants be employed in service rather than traded-goods sectors.