Equity fund ownership and the cross-regional diversification of household risk

We explore the link between portfolio home bias and consumption risk sharing among Italian regions using household-level information on consumption, income and portfolio holdings. Since equity funds are typically diversified at the national or international level, we use data on equity fund ownership to proxy for regional home bias. Cross-regional patterns of equity fund ownership are qualitatively consistent with simple portfolio theory: regions with more asymmetric business cycles are more diversified because they have higher fund participation rates (the extensive margin of diversification) and higher average holdings of equity funds (diversification’s intensive margin). Also, fund holdings increase with the exposure of non-tradable income components (such as labor or entrepreneurial income) to regional shocks. Finally, interregional consumption risk sharing increases with fund holdings and this effect seems strongest when participation is widespread. Increased equity market participation could substantially improve interregional risk sharing.     

Asymmetric Labor Market Institutions in the EMU and the Volatility of Inflation and Unemployment Differentials

How does the asymmetry of labor market institutions affect the adjustment of a currency union to shocks? To answer this question, this paper sets up a dynamic currency union model with monopolistic competition and sticky prices, hiring frictions, and real wage rigidities. In our analysis, we focus on the differentials in inflation and unemployment between countries, as they directly reflect how the currency union responds to shocks. We highlight the following three results. First, we show that it is important to distinguish between different labor market rigidities as they have opposite effects on inflation and unemployment differentials. Second, we find that asymmetries in labor market structures tend to increase the volatility of both inflation and unemployment differentials. Finally, we show that it is important to take into account the interaction between different types of labor market rigidities. Overall, our results suggest that asymmetries in labor market structures worsen the adjustment of a currency union to shocks.     

Aggregate Implications of Heterogeneous Households in a Sticky‐Price Model

This paper analyzes the role of heterogeneous households in propagating shocks over the business cycle by generalizing a basic sticky‐price model to allow for imperfect risk sharing between households that differ in labor incomes. I show that imperfectly insured household consumption distorts household incentive to supply labor hours through an idiosyncratic income effect, which in turn generates strategic complementarities in price setting and thus amplifies business cycle fluctuations. This mechanism diminishes the role of nominal rigidities and makes sticky‐price models more consistent with microeconomic evidence on the frequency of price changes.     

Incentive problems and the pattern of international risk sharing

This paper analyzes the implications of moral hazard and a lack of contract enforcement for risk sharing across countries and regions. We demonstrate that both incentive problems can considerably restrict efficient risk sharing. However, we show that the cross-sectional risk sharing component is much more affected than the intertemporal component. We argue that this may help to explain several stylized facts of international risk sharing, such as the low degree of insurance against permanent shocks.     

Stock market liberalization and international risk sharing

This paper empirically examines what macroeconomic risks are shared (or not shared) internationally after stock market liberalization in several developing countries. To address this issue, we incorporate an international asset pricing model into a non-linear structural vector autoregression (VAR) system that identifies various sources of macroeconomic risks. We find that most of the risks corresponding to exogenous financial market shocks are surprisingly well shared, although other macroeconomic risks associated with exogenous shocks to output, inflation and monetary policies are not fully shared across countries. Our results suggest that one of the main benefits from stock market liberalization is to allow the countries studied in this paper to better hedge against exogenous and idiosyncratic financial market risks, and stock market liberalization needs to be accompanied by other measures of economic integration in order to achieve the full benefits of international risk sharing.     

What Accounts for the Changes in U.S. Fiscal Policy Transmission?

Using vector autoregressions on U.S. time series for 1957–79 and 1983–2004, we find government spending shocks to have stronger effects on output, consumption, and wages in the earlier period. We try to account for this observation within a DSGE model featuring price rigidities and limited asset market participation. Specifically, we estimate the structural parameters of the model for both periods by matching impulse responses. Model‐based counterfactual experiments suggest that most of the changes in fiscal policy transmission are accounted for by increased asset market participation and the more active monetary policy of the Volcker–Greenspan period.     

On International Consumption Risk Sharing,Financial Integration and Financial Development

This article investigates the empirical link between international consumption risk sharing, financial integration, and financial development for a group of twenty-nine developed and developing countries in the G7, the Euro area, and the OECD. Estimation results indicate that (1) risk sharing in the Euro area is higher than those in the G-7 and the OECD, and (2) a higher degree of risk sharing is associated with a greater degree of financial integration and a lower level of financial development. These results suggest that more financially integrated countries might be better able to insure themselves against idiosyncratic income shocks and countries with more developed financial markets might tend to engage in less consumption risk sharing with other countries thanks to their own sophisticated financial markets. Holding financial integration and financial development equal, countries in the Euro area engage in significantly more risk sharing than the ones in the G7 and the OECD.     

The impact of international portfolio composition on consumption risk sharing

Recent empirical work has shown that ongoing international financial integration facilitates cross-country consumption risk sharing. These studies typically find that countries with high equity home bias exhibit relatively low international consumption risk sharing. We extend this line of research and demonstrate that it is not only a country's equity home bias that prevents consumption risk sharing. In addition, the composition of a country's foreign asset portfolio plays an important role. Using panel-data regression for a group of OECD countries over the period 1980–2007, we show that foreign investment bias has additional explanatory power for consumption risk sharing.     

Risk Sharing in Labor Markets

Empirical work in labor economics has focused on rent sharingas an explanation for the observed correlation between wagesand profitability. The alternative explanation of risk sharingbetween workers and employers has not been tested. Using a uniquepanel data set for four African countries, we find strong evidenceof risk sharing. Workers in effect offer insurance to employers:when firms are hit by temporary shocks, the effect on profitsis cushioned by risk sharing with workers. Rent sharing is asymptom of an inefficient labor market. Risk sharing, by contrast,can be seen as an efficient response to missing markets. Ourevidence suggests that risk sharing accounts for a substantialpart of the observed effect of shocks on wages.     

World food prices and monetary policy

How should monetary policy respond to large fluctuations in world food prices? We study this question in an open economy model in which imported food has a larger weight in domestic consumption than abroad and international risk sharing can be imperfect. A key novelty is that the real exchange rate and the terms of trade can move in opposite directions in response to world food price shocks. This exacerbates the policy trade-off between stabilizing output prices vis a vis the real exchange rate, to an extent that depends on risk sharing and the price elasticity of exports. We characterize implications for dynamics, optimal monetary policy, and the relative performance of practical monetary rules. While CPI targeting and expected CPI targeting can dominate PPI targeting if international risk sharing is perfect, even seemingly mild departures from the latter make PPI targeting a winner.     

Sectoral Responses of the Chinese Stock Market to International Oil Shocks

We investigate the relationship between international oil shocks and the sectoral dynamics of the Chinese stock market. Our empirical results show that the behavior and response to international oil shocks by the Chinese stock market differ significantly from the behavior and responses of the European stock market as documented in the literature. In China, only the mining industry has a strong and consistent link with international oil shocks when systematic risk factors are controlled. There is no clear evidence of asymmetries in China's sectoral stock-oil relationship.     

Evaluating international consumption risk sharing gains: An asset return view

International consumption risk sharing studies often generate counterfactual implications for asset return behavior with potentially misleading results. We address this contradiction using data moments of consumption and asset returns to fit a canonical international consumption risk sharing framework. Introducing persistent consumption risk, we find that its correlation across countries is more important for risk sharing than that of transitory risk. To identify these risk components, we jointly exploit the comovement of equity returns and consumption. This identification implies high correlations in persistent consumption risk, suggesting a strong degree of existing risk sharing despite low consumption correlations in the data.     

Downward wage rigidity and business cycle asymmetries

The growth rates of wages, unemployment and output of a number of OECD countries have a strongly skewed distribution. In this paper we analyze to what extent downward wage rigidities can explain these empirical business cycle asymmetries. To this aim, we introduce asymmetric wage adjustment costs in a New-Keynesian DSGE model with search and matching frictions in the labor market. Increasing wages is less costly than cutting them. It follows that wages increase relatively fast and thus limit vacancy posting and employment creation, but they decline more slowly, leading to a strong reduction in vacancies and employment. The presence of downward wage rigidities strongly improves the fit of the model to the observed skewness of labor market variables and the relative length of expansions and contractions in the output and the employment cycles. The asymmetry also explains the differing transmission of positive and negative monetary policy shocks from wages to inflation.     

Monetary shocks and sticky wages in the U.S. great contraction: A multi-sector approach

We quantify the role of contractionary monetary shocks and nominal wage rigidities in the U.S. Great Contraction. In contrast to conventional wisdom, we find little increase in the economy-wide real wage over 1929–33, although real wages rose significantly in some industries. In the context of a two-sector model with intermediates and nominal wage rigidities in one sector, contractionary monetary shocks account for only a third of the fall in GDP. Intermediate linkages play an important role, as the output decline without intermediates is almost a third larger at the trough. The role of nominal wage rigidities beyond their interaction with monetary shocks is limited.     

Risk and wealth effects of U.S. firm joint venture activity

Using a sample of US firms engaged in joint venture activity primarily in the 1990s, we test the hypothesis that joint venture activity is motivated by a desire for efficient risk sharing. We find that approximately ninety-six percent of our sample experiences a risk change in response to joint venture activity. A significant proportion of these experience a reduction in beta. No market price response is evident in conjunction with this reduction. In addition, the average parent firm experiences a significant increase in firm risk, which we attribute to taking on the risky joint venture. This increase in risk is particularly pronounced for firms engaged in international joint ventures and is accompanied by a positive market response. Investment stake, pre-venture firm profitability, size and private risk increasing characteristics appear to influence the wealth character of the joint venture. We interpret that there may be a positive market premium for international diversification effects and/or for the flexibility that the real option joint venture opportunity provides.     

Determinants of global spillovers from US monetary policy

This paper assesses the global spillovers from identified US monetary policy shocks in a global VAR model. US monetary policy generates sizable output spillovers to the rest of the world, which are larger than the domestic effects in the US for many economies. The magnitude of spillovers depends on the receiving country's trade and financial integration, de jure financial openness, exchange rate regime, financial market development, labour market rigidities, industry structure, and participation in global value chains. The role of these country characteristics for the spillovers often differs across advanced and non-advanced economies and also involves non-linearities. Furthermore, economies that experience larger spillovers from conventional US monetary policy also displayed larger downward revisions of their growth forecasts in spring 2013 when the Federal Reserve upset markets by discussing tapering off quantitative easing. The results of this paper suggest that policymakers could mitigate their economies' vulnerability to US monetary policy by fostering trade integration as well as domestic financial market development, increasing the flexibility of exchange rates, and reducing frictions in labour markets. Other policies – such as inhibiting financial integration, industrialisation and participation in global value chains – might mitigate spillovers from US monetary policy, but are likely to reduce long-run growth.     

Welfare Policies, Labour Taxation and International Integration

How will international integration affect welfare policies? This paper considers the possibilities of financing public sector activities (public consumption and social security expenses) by general (wage) taxation in an economy which becomes more integrated in international product markets. Even if labour is internationally immobile, the increased mobility of products and hence jobs implies a change in the distortions arising from taxes and social security contributions levied on labour income. Since financing of social security via general taxation involves a common resource problem the effects of international integration depend critically on the institutional structure of the labour market. This paper shows that increased international integration inducing more product market competition implies that it becomes more costly to maintain welfare systems financed by general taxation.     

Risk sharing,finance, and institutions in international portfolios

We develop a standard model to show how transaction costs in international investment affect conventional tests of consumption risk sharing, both in a multilateral and a bilateral setting. We implement the tests in a novel international data set on bilateral holdings of equity, bonds, foreign direct investment (FDI) and bank loans. In our data, high foreign capital holdings are associated with international consumption risk sharing as implied by our theory. This is especially true of investment in equity or bonds, but not of foreign direct investment or bank loans. In our model, the implication is that transaction costs are higher for FDI and international loans. The discrepancy could reflect technological differences, but also the prospect of expropriation, perhaps most stringent for FDI or loans. We argue that expropriation risk is endogenous to both the borrower's institutions and its openness to international markets. The detrimental impact of poor institutions is muted in open economies, where the possibility of subsequent exclusion from world markets deters expropriation of foreign capital. We show the implied effects of institutions prevail in both the cross-section of consumption risk sharing and in observed international investment patterns.     

Firm-Level Evidence on International Stock Market Comovement *

We explore the link between international stock market comovement and the extent to which firms operate globally. Using stock returns and balance sheet data for companies in 20 countries, we estimate a factor model that decomposes stock returns into global, country-and industry-specific shocks. We find a large and statistically significant link for global shocks. A firm raising its international sales by 10 percent raises the exposure of its stock return to global shocks by two percent. This link has grown stronger over time since the mid-1980s. We find no similarly robust link between international sales and exposure to country-specific shocks. * We are grateful to Marcelle Chauvet, Kathryn Dominguez, Kristin Forbes, Geert Rouwenhorst, Dan Waggoner, participants in the Atlanta Fed Finance Brown Bag, the IMF conference on “Global Linkages”, and the Kiel Institute for World Economics workshop on multinationals for their suggestions. We are especially grateful to Franklin Allen, Marco Pagano, and two anonymous referees for extensive comments on earlier drafts of this paper. Finally, we wish to thank Menzie Chinn for sharing his capital account liberalization measure, Iskander Karibzhanov for translating some of our code into C and Young Kim for excellent research assistance.     

Some Equity and Efficiency Considerations of International Tax Competition

The paper uses a dynamic 2-country equilibrium model with imperfections in the labour market calibrated for the US and EU economy to investigate dynamic efficiency and equity aspects of international tax competition. We focus on tax policy where governments can only decide on the levels of corporate and labour taxes, given a constant share of government consumption and transfers in GDP and a constant VAT rate. We find that the welfare effect of a tax shift from capital to labour depends heavily on the distortionary nature of labour taxes. In contrast to existing results we find substantial positive international spillover effects of corporate tax reduction in one country, with long term gains outweighing short term losses. Results are very different, however, if one goes beyond the representative agent framework. According to our results, a tax switch is most likely not Pareto improving since net wages tend to decline in both regions even in the long run.