Sciences économiques

Neuauflage des Kalten Kriegs kostet

Culture, entrepreneurship, and growth

Description: 

We discuss the two-way link between culture and economic growth. We present a model of endogenous technical change where growth is driven by the innovative activity of entrepreneurs. Entrepreneurship is risky and requires investments that affect the steepness of the lifetime consumption profile. As a consequence, the occupational choice of entrepreneurship hinges on risk tolerance and patience. Parents expecting their children to become entrepreneurs have an incentive to instill these two values in their children. Cultural transmission is Beckerian, i.e., parents are driven by the desire to maximize their children's happiness. We also consider, in an extension, a paternalistic motive for preference transmission. The growth rate of the economy depends on the fraction of the population choosing an entrepreneurial career. How many entrepreneurs there are in a society hinges, in turn, on parental investments in children's patience and risk tolerance. There can be multiple balanced-growth paths, where in faster-growing countries more people exhibit an "entrepreneurial spirit." We discuss applications of models of endogenous preferences to the analysis of socio-economic transformations, such as the British Industrial Revolution. We also discuss empirical studies documenting the importance of culture and preference heterogeneity
for economic growth.

Optimal effort incentives in dynamic tournaments

Description: 

This paper analyzes two-stage rank-order tournaments. A principal decides (i) how to spread prize money across the two periods, (ii) how to weigh performance in the two periods when awarding the second-period prize, and (iii) whether to reveal performance after the first period. The information revelation policy depends exclusively on properties of the effort cost function. The principal always puts a positive weight on first-period performance in the second period. The size of the weight and the optimal prizes depend on properties of the observation error distribution; they should be chosen so as to strike a balance between the competitiveness of first- and second-period tournaments. In particular, the principal sets no first-period prize unless the observations in period one are considerably more precise than in period two.

A game theoretic fundation of competitive quilibria with adverse selection

Description: 

We construct an extensive form game that captures competitive markets with adverse selection. It allows firms to offer any finite set of contracts, so that cross-subsidization is not ruled out. Moreover, firms can withdraw from the market after initial contract offers have been observed. We show that a subgame perfect equilibrium always exists. In fact, when withdrawal is costless, the set of equilibrium outcomes may correspond to the entire set of feasible contracts. We then focus on robust equilibria that continue to exist for small withdrawal costs. We show that the Miyazaki–Wilson contracts are the unique robust equilibrium outcome.

Growing (with capital controls) like China

Description: 

This paper explores the effects of capital controls and policies regulating interest rates and the exchange rate in a model of economic transition applied to China. It builds on Song, Storesletten, and Zilibotti (2011) who construct a growth model consistent with salient features of the recent Chinese growth experience: high output growth, sustained returns on capital investment, extensive reallocation within the manufacturing sector, sluggish wage growth, and accumulation of a large trade surplus. The salient features of the theory are asymmetric financial imperfections and heterogeneous productivity across private and state-owned firms. Capital controls and regulation of banks’ deposit rates stifle competition in the banking sector and hamper the lending to productive private firms. Removing such regulation would accelerate the growth in productivity and output. A temporarily undervalued exchange rate reduces real wages and consumption, stimulating investments in the high-productivity entrepreneurial sector. This fosters productivity growth and a trade surplus. A high interest rate mitigates the disadvantage of financially constrained firms, reduces wages, and increases the speed of transition from low- to high-productivity firms.

Analyzing educational achievement differences between second-generation immigrants: comparing Germany and German-speaking Switzerland

Description: 

In this study, I provide evidence that the educational achievement of second-generation immigrants in German-speaking Switzerland is greater than in Germany. The impact of the first-generation immigrants’ destination decision on their offspring’s educational achievement seems to be much more important than has been recognized by the existing literature. I identify the test score gap between these students that cannot be explained by differences in individual and family characteristics. Moreover, I show how this gap evolves over the test score distribution and how the least favorably-endowed students fare. My results suggest that the educational system
of Switzerland, relative to the German system, enhances the performance of immigrants’ children substantially. This disparity is largest when conditioning on the language spoken at home, and prevails even when comparing only students whose parents migrated from the same country of origin.

Portfolio balance effects of the Swiss National Bank’s bond purchase program

Description: 

This paper carries out an empirical investigation of the impact on bond spreads of the announcement, purchases and exit from the Swiss National Bank’s bond purchase program in 2009–2010. We find evidence in favor of a narrowing yield spread of covered bonds as a result of the program. The effect materialized in the days following the announcement of the Swiss National Bank’s intention to buy bonds issued by private sector borrowers, as markets learned that covered bonds were being bought. The specification of the bond spreads used allows us to identify this effect as a discounted portfolio balance effect of the expected purchases, as distinct from policy signaling. In contrast, we find no evidence of a further effect of the actual purchases and subsequent sales on bond spreads.

Are subjective distributions in inflation expectations symmetric?

Description: 

We conducted an anonymous survey in December 2013 asking around 200 economists worldwide to provide an interval (a to b) of average inflation in the US expected "over the next two years". The respondents were also instructed to give a probability of inflation being higher or lower than the mid-interval (a+b)/2. The aggregate distribution of inflation expectations we obtain closely resembles the outcome of the Survey of Professional Forecasters for 1Q2014. More importantly, we find that the subjective probability mass on either side of the mid-interval is not statistically different from 0.5, which means that the subjective distributions are symmetric. Our results align well with several papers evaluating the Survey of Professional Forecasters or similar data sets and finding no significant departures from symmetry.

Unique Equilibrium in Contests with a Continuum of Types

Description: 

It is shown that rent-seeking contests with continuous and independent type distributions possess a unique pure-strategy Nash equilibrium.

From left-skewness to symmetry: how body-height distribution among Swiss conscripts has changed shape since the late 19th century

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