The Effects of Environmental Policy on the Performance of Environmental RIVs

Much of the potential impact of environmental policy is though to come from the incentives it gives firms to develop and introduce new environmental products and processes. Almost all the literature on this issue has focused on the impact of environmental policy on the amount environmental R&D that firms undertake, assuming that such R&D is undertaken independently or non-cooperatively. It is now widely recognized that there are considerable potential benefits from having firms undertake R&D cooperatively through research joint ventures (RJVs). In this paper we analyze the impact of environmental policy on the performance of environmental RJVs and underage an explicit welfare comparison of this performance against the counterfactual of a non-cooperative equilibrium. The framework we adopt is that developed by Katsoulacos and Ulph (1998) which identifies three stages in the innovative process -- research design, R&D; information sharing -- and endogenises each of these inter-related decisions in both the cooperative and non-cooperative equilibria. The case we examine is that in which governments cannot commit to environmental policy, so all these decisions have to taken anticipating the environmental policy that will finally be imposed. We show that RJVs are welfare enhancing when the levels of environmental damage caused by pollution are low. In this case RJVs fully share information and internalize the associated externality. However when the level of damage is high, it turns out that firms anticipate tougher environmental policy when they share information then when they do not, and so do not share information. This distorts the RJV's R&D decisions in ways that make the non-cooperative equilibrium welfare enhancing.

Technology, Entrepreneurship, And Inequality

This paper links the rise of new industries populated by skill-intensive companies, and the divergence in labour incomes between skills. Our model explains inequality by the fact that as the skilled workers move towards new Silicon-Valley type firms, the reduced complementarity between skilled and unskilled workers in the traditional manufacturing sectors lessens the productivity of the latter. In addition, knowledge externalities in the modern sector produce two equilibria in which either the modern sector dominates (and inequality between skills is high), or manufacturing dominates (inequality is low). We provide suggestive evidence consistent with our model.-

Optimal universal and categorical benefits with classification errors and imperfect enforcement

We determine the optimal combination of a universal benefit, B, and categorical benefit, C, for an economy in which individuals differ in both their ability to work – modelled as an exogenous zero quantity constraint on labour supply – and, conditional on being able to work, their productivity at work. C is targeted at those unable to work, and is conditioned in two dimensions: ex-ante an individual must be unable to work to be awarded the benefit , whilst ex-post a recipient must not subsequently work. However, the ex-ante conditionality may be imperfectly enforced due to Type I(false rejection) and Type II (false award) classification errors, whilst, in addition, the ex post conditionality may be imperfectly enforced. If there are no classification errors – and thus no enforcement issues – it is always optimal to set C>0, whilst B=0 only if the benefit budget is sufficiently small. However, when classification errors occur, B=0 only if there are no Type I errors and the benefit budget is sufficiently small, while the conditions under which C>0 depend on the enforcement of the ex-post conditionality. We consider two discrete alternatives. Under No Enforcement C>0 only if the test administering C has some discriminatory power. In addition, social welfare is decreasing in the propensity to make each type of error. However, under Full Enforcement C>0 for all levels of discriminatory power, including that of no discriminatory power. Furthermore, whilst social welfare is decreasing in the propensity to make Type I errors, there are certain conditions under which it is increasing in the propensity to make Type II errors. This implies that there may be conditions under which it would be welfare enhancing to lower the chosen eligibility threshold – supporting the suggestion by Goodin (1985) to “err on the side of kindness”.Postprin

Avoidance Policies – A New Conceptual Framework

This paper develops a general theoretical framework within which a heterogeneous group taxpayers confront a market that supplies a variety of schemes for reducing tax liability, and uses this framework to explore the impact of a wide range of anti-avoidance policies. Schemes differ in their legal effectiveness and hence in the risks to which they expose taxpayers - risks which go beyond the risk of audit considered in the conventional literature on evasion. Given the individual taxpayer’s circumstances, the prices charged for the schemes and the policy environment, the model predicts (i) whether or not any given taxpayer will acquire a scheme, and (ii) if they do so, which type of scheme they will acquire. The paper then analyses how these decisions, and hence the tax gap, are influenced by four generic types of policy: Disclosure – earlier information leading to faster closure of loopholes; Penalties – introduction of penalties for failed avoidance; Policy Design – fundamental policy changes that design out opportunities for avoidance; Product Register - the introduction of GAARs or mini-GAARs that give greater clarity about how different types of scheme will be treated. The paper shows that when considering the indirect/behavioural effects of policies on the tax gap it is important to recognise that these operate on two different margins. First policies will have deterrence effects – their impact on the quantum of taxpayers choosing to acquire different types schemes as distinct to acquiring no scheme at all. There will be a range of such deterrence effects reflecting the range of schemes available in the market. But secondly, since different schemes generate different tax gaps, policies will also have switching effects as they induce taxpayers who previously acquired one type of scheme to acquire another. The first three types of policy generate positive deterrence effects but differ in the switching effects they produce. The fourth type of policy produces mixed deterrence effects

Catching-up or Leapfrogging: The effects of competition on innovation and growth

This article analyzes the "escape from competition effect" in a step-by-step framework in which a succesful firm may either leapfrog the previous leader or catch-up its technology. Innovation and growth are affected by both the intensity of competition and the probability of leapfrogging.Leapfrogging, catch-up

Un modèle non coopératif de consommation des ménages*

The paper constructs a non-cooperative Nash model of household consumption behaviour which is extremely general in both the pattern of intra-household flows for commodities and income that are permitted, and in the nature of the individual utility functions that are employed. Conditions are derived for the uniqueness of such equilibria, and it is shown that, despite the generality of the underlying structure, some striking restrictions can be placed on household commodity demands arising from models satisfying these conditions. The general comparative static properties of household commodity demands are derived. Cet article construit un modèle de consommation du ménage fondé sur un équilibre non coopératif de Nash. Ce modèle est extrêmement général, tant du point de vue des types de biens et de revenus considérés que de la nature des fonctions d’utilité individuelles. Les conditions d’unicité d’un tel équilibre sont déduites; on montre que, malgré la généralité de sa structure sous-jacente, des contraintes fortes sont placées sur les demandes de biens issues des modèles respectant ces conditions d’unicité. Les propriétés générales de statique comparée des demandes de biens du ménage sont dérivées.

Tax Compliance as a Social Norm and the Deterrent Effect of Investigations

In this paper we focus on the effects of investigations on tax compliance. In a very general model we explain the direct and indirect effects of investigations and analyse taxpayers’ response to an increase in the probability of audit when tax compliance is a social norm. We define the different elements that determine the impact of audits on compliance and show that if tax compliance is a social norm in the relevant community there is an additional effect arising because of social norm considerations. The behavioural response of taxpayers to an increase in the audit rate is stronger. Our Findings help explain seemingly contradictory results that emerge from the empirical evidence.tax evasion, social norm, opportunities to evade, optimal audit rule

Catching-up or Leapfrogging: The effects of competition on innovation and growth

This article analyzes the "escape from competition effect" in a step-by-step framework in which a succesful firm may either leapfrog the previous leader or catch-up its technology. Innovation and growth are affected by both the intensity of competition and the probability of leapfrogging.Cet article analyse l'incitation à innover pour échapper à la pression concurentielle dans le cadre d'un processus d'innovations à pas successifs dans lequel une firme innovante peut soit dépasser le leader précédent, soit rattraper son niveau technologique. L'intensité de la concurrence et la probabilité de dépassement affectent l'innovation et la croissance

Technology, entrepreneurship, and inequality

This paper links the rise of new industries populated by skill-intensive companies, and the divergence in labour incomes between skills. Our model explains inequality by the fact that as the skilled workers move towards new Silicon-Valley type firms, the reduced complementarity between skilled and unskilled workers in the traditional manufacturing sectors lessens the productivity of the latter. In addition, knowledge externalities in the modern sector produce two equilibria in which either the modern sector dominates (and inequality between skills is high), or manufacturing dominates (inequality is low). We provide suggestive evidence consistent with our model