Public-Private Partnerships A Public Economics Perspective

Public-private partnerships (PPPs) are spreading all over theworld. It may be quite plausible that they were initially startedmainly as an attempt to evade expenditure controls and hidepublic budget deficits. But if they are properly designed andtransparently reported, PPPs can play a useful role in enhancingthe efficiency of the provision of services that were suppliedbefore solely by the public sector. This article provides apublic economics perspective on PPPs. (JEL codes: H54, L33)     

Liquidity risk and the cross-section of hedge-fund returns

This paper demonstrates that liquidity risk as measured by the covariation of fund returns with unexpected changes in aggregate liquidity is an important determinant in the cross-section of hedge-fund returns. The results show that funds that significantly load on liquidity risk subsequently outperform low-loading funds by about 6% annually, on average, over the period 1994–2008, while negative performance is observed during liquidity crises. The returns are independent of the liquidity a fund provides to its investors as measured by lockup and redemption notice periods, and they are also robust to commonly used hedge-fund factors, none of which carries a significant premium during the sample period. These findings highlight the importance of understanding systematic liquidity variations in the evaluation of hedge-fund performance.     

Collateral pricing

We examine how collateral affects the cost of debt capital. Using a novel data set of secured debt issued by U.S. airlines, we construct industry-specific measures of collateral redeployability. We show that debt tranches that are secured by more redeployable collateral exhibit lower credit spreads, higher credit ratings, and higher loan-to-value ratios—an effect which our estimates show to be economically sizeable. Our results suggest that the ability to pledge collateral, and in particular redeployable collateral, lowers the cost of external financing and increases debt capacity.     

Capital income taxation under majority voting with aging population

An old person typically has a mixed attitude toward the welfare-state benefits, when they are financed by capital taxes, because her income derives mostly from capital. We develop a majority-voting model which focuses on the effect of aging on this dilemma. Surprisingly, the theory predicts that tax rates on capital income could actually rise as the population ages, even though older individuals would be expected to own more capital than the young and thus vote against higher taxes. We then confront the key prediction of the model with panel data for ten European Union countries, over the period 1970–1996. We investigate the asymmetric effect of aging on the taxation of capital and labor. The implications of the model are shown to be consistent with panel data. JEL no. H0, H5, P1     

Trade openness, investment instability and terms-of-trade volatility

In the presence of economies of scale in the investment technology, trade openness may have non-conventional effects on the level of investment, its cyclical behavior, and the volatility of the terms of trade. Trade openness may lead to boom-bust cycles of investment supported by self-fulfilling expectations. The economy may oscillate between ‘optimistic’ expectations, ‘good’ terms-of-trade and investment boom to ‘pessimistic’ expectations, ‘bad’ terms-of-trade and investment bust. We also suggest that the likelihood of such oscillations is higher for developing than for developed economies, because the former may typically incur higher setup costs of investment. This phenomenon may help to explain the excessive volatility of the terms of trade of developing countries, relative to industrial countries.     

Incorporating affirmative action into the welfare state

In this paper, we discuss a novel aspect of affirmative action policy. We examine its redistributive role, asking whether in an egalitarian society, supplementing the tax-transfer system with an affirmative action policy would enhance social welfare. We demonstrate that affirmative action could be a desirable policy tool even if racial discrimination does not exist in the labor market.     

Progression under the benefit approach to the theory of taxation

The implications for progression of the benefit approach to the theory of taxation are studied in this paper. It is concluded that the case for progression rests on the degree of substitutability between public and private goods.     

Earnings dispersion and aggregate stock returns

This paper studies the relation between aggregate stock returns and contemporaneous and future cross-sectional earnings dispersion. We hypothesize that increases in expected earnings dispersion signal increases in uncertainty and increases in unemployment, thereby causing expected returns to rise, which in turn causes prices to decline. We find a positive relation between aggregate stock returns and contemporaneous earnings dispersion because higher earnings dispersion is associated with higher expected returns. Consequently, we also find a negative relation between aggregate stock returns and future (one-year ahead) earnings dispersion, as investors anticipate higher future earnings dispersion and higher expected returns.