This paper provides new evidence on the relationship between innovation, competitionnand distance to the technology frontier, using enterprise surveys from 40 developing and transition countries. Different from previous empirical studies, the distance to frontier is measured by a firm's technology level relative to its main competitor. This self-reported comparison allows to capture a crucial determinant of a firm's business strategy and its response to competition. The findings from the empirical analysis are as follows. Firstly, firms with more advanced technology compared to their main competitors have more product innovations. Secondly, there is evidence that innovation and competition are more positively correlated at low levels of competition than at high levels. With some measures of competition,nthe correlation is highest at intermediate levels of competition, which suggestsnan inverted-U relationship. Thirdly, in certain specifications, competition is most positively correlated with product innovation when a firm is more advanced than its main competitor. In other cases, this correlation is strongest for firms that are at the same technology level as their competitors. However, the differences in the correlations between more and less advanced firms are not always significant.
We consider symmetric rent-seeking contests with independent private valuations of the contest prize. For a two-parameter specification with continuous types, we fully characterize the Bayesian equilibrium, and study its basic properties. The willingness to waste is a hump-shaped function of the private valuation, with the median type expending the highest share of her valuation. A first-order (second-order) stochastic increase in the common type distribution raises (lowers) ex-ante expected efforts. However, neither first-order nor second-order stochastic dominance in valuations necessarily leads to a first-order stochastic dominance ranking in efforts. We also show that, as uncertainty vanishes, the Bayesian equilibrium converges to the Nash equilibrium of the model with complete information.
This paper suggests that institutional factors which reward social networks at the expenses of productivity can play an important role in explaining brain drain. The effects of social networks on brain drain are analyzed in a decision theory framework with asymmetric information. We distinguish between the role of insidership and personal connections. The larger the cost of being an outsider, the smaller is the number and the average ability of researchers working in the domestic job market. Personal connections partly compensate for this effect by attracting highly connected researchers back. However, starting from a world with no distortions, personal connections also increase brain drain.
Temptation and self-control in intertemporal choice environments are receiving increasing attention in the theoretical economics literature. Nevertheless, there remains a scarcity of empirical evidence from controlled environments informing behavior under repeated temptations. This is unfortunate in light of the fact that in many natural environments, the same temptation must be repeatedly resisted. This paper fills that gap by reporting data from a novel laboratory study of economic decisions under repeat temptations. Subjects are repeatedly offered an option with instantaneous benefit that also entails a substantial reduction to overall earnings.nWe show that this option is 'tempting' in the sense that a substantial fraction of our subjects incur pecuniary costs to eliminate the choice, and thus commit to not choosing the tempting alternative. We compare the timing and price-elasticity of these commitment decisions to predictions from existing theoretical models of decision under temptation. Our data are broadly consistent with theory, with the notable exception that commitment often occurs with delay rather than at the first opportunity. Moreover, the timing of commitment is significantly impacted by the cost of the commitment device. The patterns we report have direct implications for economic theory, and are a first step toward designing mechanisms that promote prudent economic decisions under temptation.
Assuming that teachers are concerned with human capital formation and students - with ability signaling, in this paper we model a teacher-student relationship as an agency problem with conflicting interests. In our model, the teacher elicits effort from the student rewarding for it with a grade, the utility of which to the student is an ability signal inferred by the job market. In the event that the job market does not observe individual teachers' grading practice, teachers find grades as costless rewards and optimally choose to be lenient in grading. As a result, 'the problem of the commons' of good grades emerges leading to the depreciation of grading standards and grade inflation. The prediction of the model that the lower the expectations the teacher holds about her students' abilities, the flatter the grading rules she sets up is empirically supported.
"Since World War II there have been about fifty episodes of large-scale mass killings of civilians and massive forced displacements. They were usually meticulously planned and independent of military goals. We provide a model where conflict onset, conflict intensity and the decision to commit mass killings are all endogenous, with two main goals: (1) to identify the key variables and situations that make mass killings more likely to occur; and (2) to distinguish conditions under which mass killings and military conflict intensity reinforce each other from situations where they are substitute modes of strategic violence.nWe predict that mass killings are most likely in societies with large natural resources, significant proportionality constraints for rent sharing, low productivity and low state capacity. Further, massacres are more likely in a civil than in an interstate war, as in the latter group sizes matter less for future rents.nIn non polarized societies there are asymmetric equilibria with only the larger group wanting to engage in massacres. In such settings the smaller group compensates for this by fighting harder in the first place. In this case we can talk of mass killings and fighting efforts to be substitutes. In contrast, in polarized societies either both or none of the groups can be ready to do mass killings in case of victory. Under the 'shadow of mass killings' groups fight harder. Hence, in this case massacres and fighting are complements.nWe also present novel empirical results on the role of natural resources in mass killings and on what kinds of ethnic groups are most likely to be victimized in massacres and forced resettlements, using group level panel data."
Museums have many different goals beyond efficiency such as social equity, financial revenue, attracting donors and gaining international, regional or local prestige. Various pricing schemes are being discussed with the aim of reaching these goals. Thenclassical ones are entry prices and free entry. The museum club solution or exit donationsnallow for various additional goals. Each scheme has clear advantages and disadvantages.nWe propose an innovative pricing instrument: Exit prices, which are charged according to the time spent in a museum. This scheme has a number of notable advantages, in particular the better choice available to the visitors, which increases their satisfaction.
We study a dynamic general equilibrium model where innovation takes the form of the introduction new goods, whose production requires skilled workers. Innovation is followed by a costly process of standardization, whereby these new goods are adapted to be produced using unskilled labor. Our framework highlights a number of novel results. First, standardization is both an engine of growth and a potential barrier to it. As a result, growth in an inverse U-shaped function of the standardization rate (and of competition). Second, we characterize the growth and welfare maximizing speed of standardization. We show how optimal IPR policies affecting the cost of standardization vary with the skill-endowment, the elasticity of substitution between goods and other parameters. Third, we show that the interplay between innovation and standardization may lead to multiple equilibria. Finally, we study the implications of our model for the skill-premium and we illustrate novel reasons for linking North-South trade to intellectual property rights protection.
Academic rankings today are the backbone of research governance, which seem to fit the aims of “new public management” on the one side and the idea of the “republic of science” on the other side. Nevertheless rankings recently came under scrutiny. We discuss advantages and disadvantages of academic rankings, in particular their unintended negative consequences on the research process. To counterbalance these negative consequences we suggest (a) rigorous selection and socialization, and (b) downplaying the impact of rankings in order to reconcile academic self-governance with accountability to the public.
Although dependence in financial data is pervasive, standard doctoral-level econometrics texts do not make clear that the common central limit theorems (CLTs) contained therein fail when applied to dependent data. More advanced books that are clear in their CLT assumptions do not contain any worked examples of CLTs that apply to dependent data. We address these pedagogical gaps by discussing dependence in financial data and dependence assumptions innCLTs and by giving a worked example of the application of a CLT for dependent data to the case of the derivation of the asymptotic distribution of the sample variance of a Gaussian AR(1). We also provide code and the results for a Monte-Carlo simulation used to check the results of the derivation.
