Networks of common property resources

A tragedy of commons appears when the users of a common resource have incentives to exploit it more than the socially efficient level. We analyze the situation when the tragedy of commons is embedded in a network of users and sources. Users play a game of extractions, where they decide how much resource to draw from each source they are connected to. We show that the network structure matters. The exploitation at each source depends on the centrality of the links connecting the source to the users. The equilibrium is unique and we provide a formula which expresses the quantities at an equilibrium as a function of a network centrality measure. Next we characterize the efficient levels of extractions by users and outflows from sources. We provide a graph decomposition which divides the network into regions according to the availability of sources. Then the efficiency problem can be solved region by region.     

Derived factor demand under monopoly

Summary. We generalize the formula provided by Maurice and Ferguson (1973) for derived factor demand in a monopoly by extending it to cross-price effects and taking into account other variables which may, within an general-equilibrium framework, affect demand, such as income. Hopefully, both features increase the applicability of this formula in general-equilibrium analyses. Received: April 5, 2000; revised version: June 7, 2001     

INTEREST RATE CORRIDOR,LIQUIDITY MANAGEMENT,AND THE OVERNIGHT SPREAD

We analyze the determinants of the overnight spread (the spread between the Borsa Istanbul overnight repo interest rate and the average funding rate of the Central Bank of the Republic of Turkey [CBRT]) using data from both the conventional and the new monetary policy episodes. We empirically document that the overnight spread has recently been influenced by various factors that are directly or closely related to the liquidity policy of the CBRT. (JEL E43, E52, C24)     

One size may not fit all: Financial fragmentation and European monetary policies

This article investigates the impact of European Central Bank policies on credits considering financial and banking fragmentation. Using European data from the past decade, we estimate SVAR models to analyze the regional impact of conventional and unconventional measures on price and volume indicators of fragmentation. The risk-taking channel is studied using GVAR models to document the national consequences of this fragmentation. We find that unconventional measures increase credit in peripheral countries. Monetary policies alleviate fragmentation, but mostly in terms of price dispersion rather than credit volume. Finally, unconventional measures imply a rebalancing of European bank assets in favor of foreign currency denominated-assets.     

Investment and the rate of profit in a financial context: the French case

The growth regime prevailing in France since the middle of the 1980s allowed for a recovery of profitability, yet without durable resumption of growth or accumulation of fixed capital. The financialization of this growth regime shows on both the asset and liability sides of the balance sheets. Following a post‐Keynesian framework, we analyse and test the main determinants of real investment and financial capital accumulation for non‐financial companies in France, based on data from the flow‐of‐funds accounts. This analysis points to an arbitrage, prevailing between real and financial accumulation, as a key reason explaining the insufficient recovery of investment.     

Trade networks and colonial trade spillovers

This paper provides new empirical evidence regarding the formation of international trade networks. Established trade relations may open the gate to new trade opportunities, as they allow meeting new trade partners over time. We test this prediction and its implications for aggregate trade patterns by using the experience of ancient trade linkages between former colonies and their former colonizers (colonial trade linkages). We first show, using aggregate trade data, that former colonies have more trade with former colonizer's neighbors (colonial trade spillovers). We then show that the past export and import experience of former colonies with the colonizer have an impact on the propensity to trade similar products with third countries. In particular, the trade spillover effect is negatively related to geographical distance between third countries and the colonizer, and positively affected by their degree of economic integration.     

Poverty Dynamics in Turkey

This paper examines poverty dynamics in Turkey using a nationally representative panel data covering the 2005–08 period. The aim is to understand mobility in and out of poverty and its correlates. We find that almost a quarter of the poor are persistently poor. The conditional and unconditional exit rates that we estimate are within the range of values reported for developed countries in the literature. That the income events—but not transfers—dominate both poverty entries and exits is indicative of the major role labor markets play in the lives of the poor. In particular, we argue that given the characteristics of the poor and modest levels of social assistance, the reason for mobility rates close to European averages must be sought in the informal economy.