The Theoretical Framework and Methodology to Estimate the Farm Labour and Other Factor-Derived Demand and Output Supply Systems. Factor Markets Working Document No. 44, May 2013

This paper provides a conceptual framework for the estimation of the farm labour and other factor-derived demand and output supply systems. In order to analyse the drivers of labour demand in agriculture and account for the impact of policies on those decisions, it is necessary to acknowledge the interaction between the different factor markets. For this purpose, we present a review of the theoretical background to primal and dual representations of production and some empirical literature that has made use of derived demand systems. The main focus of the empirical work is to study the effect of market distortions in one market, through inefficient pricing, on the demand for other inputs. Therefore, own-price and cross-price elasticities of demand become key variables in the analysis. The dual cost function is selected as the most appropriate approach, where input prices are assumed to be exogenous. A commonly employed specification – and one that is particularly convenient due to its flexible form – is the translog cost function. The analysis consists of estimating the system of cost-share equations, in order to obtain the derived demand functions for inputs. Thus, the elasticities of factor substitution can be used to examine the complementarity/substitutability between inputs.

Language, Identity, Politics-the Myth of Two Ukraines. Bertelsmann Policy Brief, April 2014

The narrative of two Ukraines – the existence of two separate cultural-political communities within one Ukrainian state – has accompanied the relatively short history of inde-pendent Ukraine from the very be-ginning. Articulated by Mykola Ryabchuk more than twenty years ago1 and seemingly logical and reasonable, it has become the fa-vourite narrative of many Ukrainian and international commentators and analysts. One of these Ukraines is pro-European, shares liberal democracy values, wants to join the European Union, “return to Europe” and, what is very im-portant, speaks Ukrainian. The symbolic centre of this Ukraine is Lviv. The other is nostalgic about the Soviet Union, has close rela-tions with contemporary Russia, is hostile towards the West and does not share “western” values. The language of this other Ukraine is Russian and its “capital” is Do-netsk. Taking on board this narra-tive simply means equating one’s region of residence, political views, and preferred language.